Merge pull request #246 from visualfc/link_go

ssa: update linkname go style

.gitignore

@@ -13,11 +13,13 @@ llgo_autogen.ll
 stories*.bin
 .DS_Store
 err.log
+numpy.txt
 
 _go/
 _runtime/
 _tinygo/
 build.dir/
+.vscode/
 
 # Test binary, built with `go test -c`
 *.test

.gitmodules

@@ -1,6 +1,3 @@
-[submodule "x/llama2/llama2.c"]
-	path = x/llama2/llama2.c
+[submodule "c/llama2/llama2.c"]
+	path = c/llama2/llama2.c
 	url = https://github.com/karpathy/llama2.c.git
-[submodule "x/sqlite/sqlite"]
-	path = x/sqlite/sqlite
-	url = https://github.com/sqlite/sqlite.git

README.md

@@ -8,7 +8,192 @@ llgo - A Go compiler based on LLVM
 [![GoDoc](https://pkg.go.dev/badge/github.com/goplus/llgo.svg)](https://pkg.go.dev/github.com/goplus/llgo)
 [![Language](https://img.shields.io/badge/language-Go+-blue.svg)](https://github.com/goplus/gop)
 
-This is a Go compiler based on LLVM in order to better integrate Go with the C ecosystem. It's a subproject of [the Go+ project](https://github.com/goplus/gop).
+LLGo is a Go compiler based on LLVM in order to better integrate Go with the C ecosystem including Python. It's a subproject of [the Go+ project](https://github.com/goplus/gop).
+
+
+## C standard libary support
+
+```go
+package main
+
+import "github.com/goplus/llgo/c"
+
+func main() {
+	c.Printf(c.Str("Hello world\n"))
+}
+```
+
+This is a simple example of calling the C `printf` function to print `Hello world`. Here, `c.Str` is not a function for converting a Go string to a C string, but a built-in instruction supported by `llgo` for generating a C string constant.
+
+The `_demo` directory contains some C standard libary related demos (it start with `_` to prevent the `go` command from compiling it):
+
+* [hello](_demo/hello/hello.go): call C `printf` to print `Hello world`
+* [concat](_demo/concat/concat.go): call C `fprintf` with `stderr`
+* [qsort](_demo/qsort/qsort.go): call C function with a callback (eg. `qsort`)
+
+To run these demos (If you haven't installed `llgo` yet, please refer to [How to install](#how-to-install)):
+
+```sh
+export LLGOROOT=`pwd`
+cd <demo-directory>  # eg. cd _demo/hello
+llgo run .
+```
+
+See [github.com/goplus/llgo/c](https://pkg.go.dev/github.com/goplus/llgo/c) for more detials.
+
+
+## Python support
+
+You can import a Python library in LLGo!
+
+And you can import any Python library into `llgo` through a program called `llpyg` (see [Development tools](#development-tools)). The following libraries have been included in `llgo`:
+
+* [builtins](https://pkg.go.dev/github.com/goplus/llgo/py/std)
+* [sys](https://pkg.go.dev/github.com/goplus/llgo/py/sys)
+* [os](https://pkg.go.dev/github.com/goplus/llgo/py/os)
+* [math](https://pkg.go.dev/github.com/goplus/llgo/py/math)
+* [json](https://pkg.go.dev/github.com/goplus/llgo/py/json)
+* [inspect](https://pkg.go.dev/github.com/goplus/llgo/py/inspect)
+* [statistics](https://pkg.go.dev/github.com/goplus/llgo/py/statistics)
+* [numpy](https://pkg.go.dev/github.com/goplus/llgo/py/numpy)
+* [pandas](https://pkg.go.dev/github.com/goplus/llgo/py/pandas)
+* [pytorch](https://pkg.go.dev/github.com/goplus/llgo/py/torch)
+* [matplotlib](https://pkg.go.dev/github.com/goplus/llgo/py/matplotlib)
+
+Here is an example using the Python `math` library:
+
+```go
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/math"
+)
+
+func main() {
+	x := math.Sqrt(py.Float(2))
+	c.Printf(c.Str("sqrt(2) = %f\n"), x.Float64())
+}
+```
+
+Here, We call `py.Float(2)` to create a Python number 2, and pass it to Python’s `math.sqrt` to get `x`. Then use `x.Float64()` to convert x to Go's `float64` type, and print the value through the C `printf` function.
+
+Let's look at a slightly more complex example. For example, we use `numpy` to calculate:
+
+```go
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/numpy"
+)
+
+func main() {
+	a := py.List(
+		py.List(1.0, 2.0, 3.0),
+		py.List(4.0, 5.0, 6.0),
+		py.List(7.0, 8.0, 9.0),
+	)
+	b := py.List(
+		py.List(9.0, 8.0, 7.0),
+		py.List(6.0, 5.0, 4.0),
+		py.List(3.0, 2.0, 1.0),
+	)
+	x := numpy.Add(a, b)
+	c.Printf(c.Str("a+b = %s\n"), x.Str().CStr())
+}
+```
+
+Here we define two 3x3 matrices a and b, add them to get x, and then print the result.
+
+The `_pydemo` directory contains some python related demos:
+
+* [callpy](_pydemo/callpy/callpy.go): call Python standard library function `math.sqrt`
+* [pi](_pydemo/pi/pi.go): print python constants `math.pi`
+* [statistics](_pydemo/statistics/statistics.go): define a python list and call `statistics.mean` to get the mean
+* [matrix](_pydemo/matrix/matrix.go): a basic `numpy` demo
+
+To run these demos, you need to set the `LLGO_LIB_PYTHON` environment variable first.
+
+If Python is in the search path for `clang` linking, then `LLGO_LIB_PYTHON` only needs to be set to the name of the Python library. For example:
+
+```sh
+export LLGO_LIB_PYTHON=python3.12
+```
+
+You can also specify the path to tell `llgo` where the Python library is located:
+
+```sh
+export LLGO_LIB_PYTHON=/foo/bar/python3.12
+```
+
+For example, `/opt/homebrew/Frameworks/Python.framework/Versions/3.12/libpython3.12.dylib` is a typical python library location under macOS. So we should set it like this:
+
+```sh
+export LLGO_LIB_PYTHON=/opt/homebrew/Frameworks/Python.framework/Versions/3.12/python3.12
+```
+
+Note that the file name must be written in a platform-independent format, using `python3.12` instead of `libpython3.12.dylib`.
+
+Then you can run the demos:
+
+```sh
+export LLGOROOT=`pwd`
+cd <demo-directory>  # eg. cd _pydemo/callpy
+llgo run .
+```
+
+See [github.com/goplus/llgo/py](https://pkg.go.dev/github.com/goplus/llgo/py) for more detials.
+
+
+## Other frequently used libraries
+
+LLGo can easily import any libraries from the C ecosystem. Currently, this import process is still manual, but in the future, it will be automated similar to Python library imports.
+
+The currently supported libraries include:
+
+* [llama2.c](https://pkg.go.dev/github.com/goplus/llgo/c/llama2)
+* [cjson](https://pkg.go.dev/github.com/goplus/llgo/c/cjson)
+* [sqlite](https://pkg.go.dev/github.com/goplus/llgo/c/sqlite)
+
+Here are some examples related to them:
+
+* [llama2-c](_demo/llama2-c): inference Llama 2 (It's the first llgo AI example)
+* [mkjson](c/cjson/_demo/mkjson/mkjson.go): create a json object and print it
+* [sqlitedemo](c/sqlite/_demo/sqlitedemo/demo.go): a basic sqlite demo
+
+
+## Go syntax support
+
+Common Go syntax is already supported. Except for the following, which needs to be improved:
+
+* map (Very limited support)
+* panic (Limited support)
+* recover (Not supported yet)
+* defer (Not supported yet)
+* gc (Not supported yet)
+* chan (Not supported yet)
+* goroutine (Not supported yet)
+* generics (Not supported yet)
+
+Here are some examples related to Go syntax:
+
+* [concat](_demo/concat/concat.go): define a variadic function
+* [genints](_demo/genints/genints.go): various forms of closure usage (including C function, recv.method and anonymous function)
+* [errors](_demo/errors/errors.go): demo to implement error interface
+
+
+## Go packages support
+
+Here are the Go packages that can be imported correctly:
+
+* [unsafe](https://pkg.go.dev/unsafe)
+* [unicode](https://pkg.go.dev/unicode)
+* [unicode/utf8](https://pkg.go.dev/unicode/utf8)
+* [unicode/utf16](https://pkg.go.dev/unicode/utf16)
+
 
 ## How to install
 
@@ -37,20 +222,27 @@ go install -v ./...
 TODO
 
 
-## Demo
+## Development tools
 
-The `_demo` directory contains our demos (it start with `_` to prevent the `go` command from compiling it):
+* [pydump](chore/_xtool/pydump): It's the first program compiled by `llgo` (NOT `go`) in a production environment. It outputs symbol information (functions, variables, and constants) from a Python library in JSON format, preparing for the generation of corresponding packages in `llgo`.
+* [pysigfetch](https://github.com/goplus/hdq/tree/main/chore/pysigfetch): It generates symbol information by extracting information from Python's documentation site. This tool is not part of the `llgo` project, but we depend on it.
+* [llpyg](chore/llpyg): It is used to automatically convert Python libraries into Go packages that `llgo` can import. It depends on `pydump` and `pysigfetch` to accomplish the task.
+* [llgen](chore/llgen): It is used to compile Go packages into LLVM IR files (*.ll).
+* [ssadump](chore/ssadump): It is a Go SSA builder and interpreter.
 
-* [hello](_demo/hello/hello.go): call C printf to print `Hello world`
-* [concat](_demo/concat/concat.go): call C fprintf with stderr, and Go variadic function
-* [qsort](_demo/qsort/qsort.go): call C function with a callback (eg. qsort)
-* [genints](_demo/genints/genints.go): various forms of closure usage (including C function, recv.method and anonymous function)
-* [llama2-c](_demo/llama2-c): inference Llama 2 (It's the first llgo AI example)
-* [hellopy](https://github.com/goplus/cpython/blob/main/_demo/hellopy/hello.go): link Python to Go and say `Hello world`
-
-### How to run demos
+How do I generate these tools?
 
 ```sh
-cd <demo-directory>  # eg. cd _demo/genints
-llgo run .
+go install -v ./...  # compile all tools except pydump
+cd chore/_xtool
+llgo install ./...   # compile pydump
+go install github.com/goplus/hdq/chore/pysigfetch@v0.8.1  # compile pysigfetch
 ```
+
+## Key modules
+
+Below are the key modules for understanding the implementation principles of `llgo`:
+
+* [llgo/ssa](https://pkg.go.dev/github.com/goplus/llgo/ssa): It generates LLVM IR files (LLVM SSA) using the semantics (interfaces) of Go SSA. Although `LLVM SSA` and `Go SSA` are both IR languages, they work at completely different levels. `LLVM SSA` is closer to machine code, which abstracts different instruction sets. While `Go SSA` is closer to a high-level language. We can think of it as the instruction set of the `Go computer`. `llgo/ssa` is not just limited to the `llgo` compiler. If we view it as the high-level expressive power of `LLVM`, you'll find it very useful. Prior to `llgo/ssa`, you had to operate `LLVM` using machine code semantics. But now, with the advanced SSA form (in the semantics of Go SSA), you can conveniently utilize `LLVM`.
+* [llgo/cl](https://pkg.go.dev/github.com/goplus/llgo/cl): It is the core of the llgo compiler. It converts a Go package into LLVM IR files. It depends on `llgo/ssa`.
+* [llgo/internal/build](https://pkg.go.dev/github.com/goplus/llgo/internal/build): It strings together the entire compilation process of `llgo`. It depends on `llgo/ssa` and `llgo/cl`.

_demo/errors/errors.go

@@ -0,0 +1,22 @@
+package main
+
+// New returns an error that formats as the given text.
+// Each call to New returns a distinct error value even if the text is identical.
+func New(text string) error {
+	return &errorString{text}
+}
+
+// errorString is a trivial implementation of error.
+type errorString struct {
+	s string
+}
+
+func (e *errorString) Error() string {
+	return e.s
+}
+
+func main() {
+	err := New("an error")
+	println(err)
+	println(err.Error())
+}

_demo/interf/foo/foo.go

@@ -0,0 +1,9 @@
+package foo
+
+func Bar() any {
+	return struct{ V int }{1}
+}
+
+func F() any {
+	return struct{ v int }{1}
+}

_demo/interf/interf.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"github.com/goplus/llgo/_demo/interf/foo"
+)
+
+func Foo() any {
+	return struct{ v int }{1}
+}
+
+func main() {
+	v := Foo()
+	if x, ok := v.(struct{ v int }); ok {
+		println(x.v)
+	} else {
+		println("Foo: not ok")
+	}
+	bar := foo.Bar()
+	if x, ok := bar.(struct{ V int }); ok {
+		println(x.V)
+	} else {
+		println("Bar: not ok")
+	}
+	if x, ok := foo.F().(struct{ v int }); ok {
+		println(x.v)
+	} else {
+		println("F: not ok")
+	}
+}
+
+/* Expected output:
+1
+1
+F: not ok
+*/

_demo/llama2-c/run.go

@@ -2,7 +2,7 @@ package main
 
 import (
 	"github.com/goplus/llgo/c"
-	"github.com/goplus/llgo/x/llama2"
+	"github.com/goplus/llgo/c/llama2"
 )
 
 func main() {

_pydemo/callpy/callpy.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/math"
+)
+
+func main() {
+	x := math.Sqrt(py.Float(2))
+	c.Printf(c.Str("sqrt(2) = %f\n"), x.Float64())
+}

_pydemo/matrix/matrix.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/numpy"
+)
+
+func main() {
+	a := py.List(
+		py.List(1.0, 2.0, 3.0),
+		py.List(4.0, 5.0, 6.0),
+		py.List(7.0, 8.0, 9.0),
+	)
+	b := py.List(
+		py.List(9.0, 8.0, 7.0),
+		py.List(6.0, 5.0, 4.0),
+		py.List(3.0, 2.0, 1.0),
+	)
+	x := numpy.Add(a, b)
+	c.Printf(c.Str("a+b = %s\n"), x.Str().CStr())
+}

_pydemo/max/max.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/std"
+)
+
+func main() {
+	x := std.Max(py.Float(3.0), py.Float(9.0), py.Float(23.0), py.Float(100.0))
+	std.Print(x)
+
+	list := py.List(3.0, 9.0, 23.0, 100.0)
+	y := std.Max(std.Iter(list))
+	std.Print(y)
+}

_pydemo/pi/pi.go

@@ -0,0 +1,10 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py/math"
+)
+
+func main() {
+	c.Printf(c.Str("pi = %f\n"), math.Pi.Float64())
+}

_pydemo/print/print.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/std"
+)
+
+func main() {
+	x := py.Float(3.14)
+	std.Print(x)
+}

_pydemo/statistics/statistics.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/statistics"
+)
+
+func main() {
+	list := py.List(1.0, 2.0, 3.0, 4.0, 4.0)
+	mean := statistics.Mean(list)
+	c.Printf(c.Str("mean(1, 2, 3, 4, 4) = %f\n"), mean.Float64())
+}

_pydemo/tensor/tensor.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/std"
+	"github.com/goplus/llgo/py/torch"
+)
+
+func main() {
+	data := py.List(
+		py.List(1.0, 2.0),
+		py.List(3.0, 4.0),
+	)
+	x := torch.Tensor(data)
+	std.Print(x)
+}

c/c.go

@@ -28,7 +28,12 @@ type (
 	Char      = int8
 	Int       = C.int
 	Uint      = C.uint
+	Long      = int32
+	Ulong     = uint32
+	LongLong  = int64
+	UlongLong = uint64
 	Float     = float32
+	Double    = float64
 	Pointer   = unsafe.Pointer
 	FilePtr   = unsafe.Pointer
 )
@@ -66,7 +71,7 @@ func Memset(s Pointer, c Int, n uintptr) Pointer
 
 // -----------------------------------------------------------------------------
 
-//go:linkname GoStringData github.com/goplus/llgo/internal/runtime.StringData
+//go:linkname GoStringData llgo.stringData
 func GoStringData(string) *Char
 
 // -----------------------------------------------------------------------------
@@ -104,6 +109,12 @@ func Printf(format *Char, __llgo_va_list ...any) Int
 //go:linkname Fprintf C.fprintf
 func Fprintf(fp FilePtr, format *Char, __llgo_va_list ...any) Int
 
+//go:linkname Fwrite C.fwrite
+func Fwrite(data Pointer, size, count uintptr, fp FilePtr) uintptr
+
+//go:linkname Fputc C.fputc
+func Fputc(c Int, fp FilePtr) Int
+
 // -----------------------------------------------------------------------------
 
 //go:linkname Time C.time

c/cjson/README.md

@@ -0,0 +1,35 @@
+LLGo wrapper of DaveGamble/cJSON
+=====
+[![Build Status](https://github.com/goplus/cjson/actions/workflows/go.yml/badge.svg)](https://github.com/goplus/cjson/actions/workflows/go.yml)
+[![GitHub release](https://img.shields.io/github/v/tag/goplus/cjson.svg?label=release)](https://github.com/goplus/cjson/releases)
+[![GoDoc](https://pkg.go.dev/badge/github.com/goplus/cjson.svg)](https://pkg.go.dev/github.com/goplus/cjson)
+[![Compiler](https://img.shields.io/badge/compiler-llgo-darkgreen.svg)](https://github.com/goplus/llgo)
+[![Language](https://img.shields.io/badge/language-Go+-blue.svg)](https://github.com/goplus/gop)
+
+## How to install
+
+```sh
+git clone https://github.com/goplus/cjson.git
+cd cjson
+git submodule init
+git submodule update
+mkdir build.dir
+cd build.dir
+cmake ../cJSON
+sudo make install
+```
+
+## Demos
+
+The `_demo` directory contains our demos (it start with `_` to prevent the `go` command from compiling it):
+
+* [mkjson](_demo/mkjson/mkjson.go): create a json object and print it
+
+### How to run demos
+
+To run the demos in directory `_demo`:
+
+```sh
+cd <demo-directory>  # eg. cd _demo/mkjson
+llgo run .
+```

c/cjson/_demo/mkjson/mkjson.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/cjson"
+)
+
+func main() {
+	mod := cjson.Object()
+	mod.SetItem(c.Str("name"), cjson.String(c.Str("math")))
+
+	syms := cjson.Array()
+
+	fn := cjson.Object()
+	fn.SetItem(c.Str("name"), cjson.String(c.Str("sqrt")))
+	fn.SetItem(c.Str("sig"), cjson.String(c.Str("(x, /)")))
+	syms.AddItem(fn)
+
+	v := cjson.Object()
+	v.SetItem(c.Str("name"), cjson.String(c.Str("pi")))
+	syms.AddItem(v)
+
+	mod.SetItem(c.Str("items"), syms)
+
+	c.Printf(c.Str("%s\n"), mod.CStr())
+	mod.Delete()
+}

c/cjson/cjson.go

@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cjson
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+)
+
+const (
+	LLGoPackage = "link: cjson"
+)
+
+// llgo:type C
+type JSON struct {
+	Unused [0]byte
+}
+
+//go:linkname Null C.cJSON_CreateNull
+func Null() *JSON
+
+//go:linkname True C.cJSON_CreateTrue
+func True() *JSON
+
+//go:linkname False C.cJSON_CreateFalse
+func False() *JSON
+
+//go:linkname Bool C.cJSON_CreateBool
+func Bool(boolean c.Int) *JSON
+
+//go:linkname Number C.cJSON_CreateNumber
+func Number(num float64) *JSON
+
+//go:linkname String C.cJSON_CreateString
+func String(str *c.Char) *JSON
+
+//go:linkname Array C.cJSON_CreateArray
+func Array() *JSON
+
+//go:linkname Object C.cJSON_CreateObject
+func Object() *JSON
+
+// raw json
+//
+//go:linkname Raw C.cJSON_CreateRaw
+func Raw(raw *c.Char) *JSON
+
+// Create a string where valuestring references a string so
+// it will not be freed by Delete
+//
+//go:linkname StringRef C.cJSON_CreateStringReference
+func StringRef(str *c.Char) *JSON
+
+// Create an object that only references it's elements so
+// they will not be freed by Delete
+//
+//go:linkname ObjectRef C.cJSON_CreateObjectReference
+func ObjectRef(child *JSON) *JSON
+
+// Create an array that only references it's elements so
+// they will not be freed by Delete
+//
+//go:linkname ArrayRef C.cJSON_CreateArrayReference
+func ArrayRef(child *JSON) *JSON
+
+// Delete a JSON entity and all subentities.
+//
+// llgo:link (*JSON).Delete C.cJSON_Delete
+func (o *JSON) Delete() {}
+
+// Append item to the specified array.
+//
+// llgo:link (*JSON).AddItem C.cJSON_AddItemToArray
+func (o *JSON) AddItem(item *JSON) c.Int { return 0 }
+
+// Append item to the specified object.
+//
+// llgo:link (*JSON).SetItem C.cJSON_AddItemToObject
+func (o *JSON) SetItem(key *c.Char, item *JSON) c.Int { return 0 }
+
+// llgo:link (*JSON).CStr C.cJSON_PrintUnformatted
+func (o *JSON) CStr() *c.Char { return nil }
+
+// Same as CStr. Provided for Go+.
+//
+// llgo:link (*JSON).Cstr C.cJSON_PrintUnformatted
+func (o *JSON) Cstr() *c.Char { return nil }
+
+// Render a JSON entity to text for transfer/storage.
+//
+// llgo:link (*JSON).Print C.cJSON_Print
+func (o *JSON) Print() *c.Char { return nil }
+
+// Render a JSON entity to text for transfer/storage without any formatting.
+//
+// llgo:link (*JSON).PrintUnformatted C.cJSON_PrintUnformatted
+func (o *JSON) PrintUnformatted() *c.Char { return nil }
+
+// Render a JSON entity to text using a buffered strategy.
+//
+// prebuffer is a guess at the final size. guessing well reduces reallocation.
+//
+// fmt=0 gives unformatted, =1 gives formatted.
+//
+// llgo:link (*JSON).PrintBuffered C.cJSON_PrintBuffered
+func (o *JSON) PrintBuffered(prebuffer c.Int, fmt c.Int) *c.Char { return nil }

c/llama2/llama2.go

@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package llama2
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+)
+
+const (
+	LLGoPackage = "link"
+)
+
+// -----------------------------------------------------------------------------
+
+// llgo:type C
+type TokenIndex struct {
+	Str *c.Char
+	Id  c.Int
+}
+
+// llgo:type C
+type Tokenizer struct {
+	Vocab          **c.Char
+	VocabScores    *c.Float
+	SortedVocab    *TokenIndex
+	VocabSize      c.Int
+	MaxTokenLength c.Uint
+	BytePieces     [512]uint8 // stores all single-byte strings
+}
+
+//go:linkname BuildTokenizer C.build_tokenizer
+func BuildTokenizer(t *Tokenizer, tokenizerPath *c.Char, vocabSize c.Int)
+
+//go:linkname FreeTokenizer C.free_tokenizer
+func FreeTokenizer(t *Tokenizer)
+
+// -----------------------------------------------------------------------------
+
+// llgo:type C
+type Config struct {
+	Dim       c.Int // transformer dimension
+	HiddenDim c.Int // for ffn layers
+	NLayers   c.Int // number of layers
+	NHeads    c.Int // number of query heads
+	NKVHeads  c.Int // number of key/value heads (can be < query heads because of multiquery)
+	VocabSize c.Int // vocabulary size, usually 256 (byte-level)
+	SeqLen    c.Int // max sequence length
+}
+
+// llgo:type C
+type TransformerWeights struct {
+	// token embedding table
+	TokenEmbeddingTable *c.Float // (vocab_size, dim)
+	// weights for rmsnorms
+	RmsAttWeight *c.Float // (layer, dim) rmsnorm weights
+	RmsFfnWeight *c.Float // (layer, dim)
+	// weights for matmuls. note dim == n_heads * head_size
+	Wq *c.Float // (layer, dim, n_heads * head_size)
+	Wk *c.Float // (layer, dim, n_kv_heads * head_size)
+	Wv *c.Float // (layer, dim, n_kv_heads * head_size)
+	Wo *c.Float // (layer, n_heads * head_size, dim)
+	// weights for ffn
+	W1 *c.Float // (layer, hidden_dim, dim)
+	W2 *c.Float // (layer, dim, hidden_dim)
+	W3 *c.Float // (layer, hidden_dim, dim)
+	// final rmsnorm
+	RmsFinalWeight *c.Float // (dim,)
+	// (optional) classifier weights for the logits, on the last layer
+	Wcls *c.Float
+}
+
+// llgo:type C
+type RunState struct {
+	// current wave of activations
+	X      *c.Float // activation at current time stamp (dim,)
+	Xb     *c.Float // same, but inside a residual branch (dim,)
+	Xb2    *c.Float // an additional buffer just for convenience (dim,)
+	Hb     *c.Float // buffer for hidden dimension in the ffn (hidden_dim,)
+	Hb2    *c.Float // buffer for hidden dimension in the ffn (hidden_dim,)
+	Q      *c.Float // query (dim,)
+	K      *c.Float // key (dim,)
+	V      *c.Float // value (dim,)
+	Att    *c.Float // buffer for scores/attention values (n_heads, seq_len)
+	Logits *c.Float // output logits
+	// kv cache
+	KeyCache   *c.Float // (layer, seq_len, dim)
+	ValueCache *c.Float // (layer, seq_len, dim)
+}
+
+// llgo:type C
+type Transformer struct {
+	Config  Config             // the hyperparameters of the architecture (the blueprint)
+	Weights TransformerWeights // the weights of the model
+	State   RunState           // buffers for the "wave" of activations in the forward pass
+
+	// some more state needed to properly clean up the memory mapping (sigh)
+	Fd       c.Int    // file descriptor for memory mapping
+	Data     *c.Float // memory mapped data pointer
+	FileSize uintptr  // size of the checkpoint file in bytes
+}
+
+//go:linkname BuildTransformer C.build_transformer
+func BuildTransformer(t *Transformer, checkpointPath *c.Char)
+
+//go:linkname FreeTransformer C.free_transformer
+func FreeTransformer(t *Transformer)
+
+// -----------------------------------------------------------------------------
+
+// llgo:type C
+type ProbIndex struct {
+	Prob  c.Float
+	Index c.Int
+} // struct used when sorting probabilities during top-p sampling
+
+// llgo:type C
+type Sampler struct {
+	VocabSize   c.Int
+	Probindex   *ProbIndex // buffer used in top-p sampling
+	Temperature c.Float
+	Topp        c.Float
+	RngState    uint64
+}
+
+//go:linkname BuildSampler C.build_sampler
+func BuildSampler(sampler *Sampler, vocabSize c.Int, temperature c.Float, topp c.Float, rngSeed uint64)
+
+//go:linkname FreeSampler C.free_sampler
+func FreeSampler(sampler *Sampler)
+
+// -----------------------------------------------------------------------------
+
+//go:linkname Generate C.generate
+func Generate(
+	transformer *Transformer, tokenizer *Tokenizer, sampler *Sampler,
+	prompt *c.Char, steps c.Int)
+
+//go:linkname Chat C.chat
+func Chat(
+	transformer *Transformer, tokenizer *Tokenizer, sampler *Sampler,
+	cliUserPrompt *c.Char, cliSystemPrompt *c.Char, steps c.Int)
+
+// -----------------------------------------------------------------------------

c/llama2/llgo.cfg

@@ -1,6 +1,6 @@
 {
     "cl": [
         "clang -emit-llvm -S -o llgo_autogen.ll -c llama2/run.c",
-        "zip llgo_autogen.lla llgo_autogen.ll"
+        "rm llgo_autogen.lla; zip llgo_autogen.lla llgo_autogen.ll"
     ]
 }

c/sqlite/README.md

@@ -0,0 +1,35 @@
+LLGo wrapper of sqlite
+=====
+[![Build Status](https://github.com/goplus/sqlite/actions/workflows/go.yml/badge.svg)](https://github.com/goplus/sqlite/actions/workflows/go.yml)
+[![GitHub release](https://img.shields.io/github/v/tag/goplus/sqlite.svg?label=release)](https://github.com/goplus/sqlite/releases)
+[![GoDoc](https://pkg.go.dev/badge/github.com/goplus/sqlite.svg)](https://pkg.go.dev/github.com/goplus/sqlite)
+[![Compiler](https://img.shields.io/badge/compiler-llgo-darkgreen.svg)](https://github.com/goplus/llgo)
+[![Language](https://img.shields.io/badge/language-Go+-blue.svg)](https://github.com/goplus/gop)
+
+## How to install
+
+```sh
+git clone https://github.com/goplus/sqlite.git
+cd sqlite
+git submodule init
+git submodule update
+mkdir build.dir
+cd build.dir
+../sqlite/configure --enable-shared
+sudo make install
+```
+
+## Demos
+
+The `_demo` directory contains our demos (it start with `_` to prevent the `go` command from compiling it):
+
+* [sqlitedemo](_demo/sqlitedemo/demo.go): a basic sqlite demo
+
+### How to run demos
+
+To run the demos in directory `_demo`:
+
+```sh
+cd <demo-directory>  # eg. cd _demo/sqlitedemo
+llgo run .
+```

c/sqlite/_demo/sqlitedemo/demo.go

@@ -2,7 +2,7 @@ package main
 
 import (
 	"github.com/goplus/llgo/c"
-	"github.com/goplus/llgo/x/sqlite"
+	"github.com/goplus/llgo/c/sqlite"
 )
 
 func main() {

c/sqlite/sqlite.go

@@ -22,27 +22,23 @@ import (
 	"github.com/goplus/llgo/c"
 )
 
-type (
-	Char    = c.Char
-	Int     = c.Int
-	Pointer = c.Pointer
-)
-
 const (
-	LLGoPackage = "link"
+	LLGoPackage = "link: sqlite3"
 )
 
 // llgo:type C
 type Sqlite3 struct {
+	Unused [8]byte
 }
 
 // llgo:type C
 type Stmt struct {
+	Unused [8]byte
 }
 
 // -----------------------------------------------------------------------------
 
-type Errno Int
+type Errno c.Int
 
 const (
 	OK Errno = 0 // Successful result
@@ -80,11 +76,11 @@ const (
 	Done   Errno = 101 // sqlite3_step() has finished executing
 )
 
-// llgo:link (Errno).Errstr C.sqlite3_errstr
-func (err Errno) Errstr() *Char { return nil }
+// llgo:link Errno.Errstr C.sqlite3_errstr
+func (err Errno) Errstr() *c.Char { return nil }
 
 // llgo:link (*Sqlite3).Errmsg C.sqlite3_errmsg
-func (db *Sqlite3) Errmsg() *Char { return nil }
+func (db *Sqlite3) Errmsg() *c.Char { return nil }
 
 // llgo:link (*Sqlite3).Errcode C.sqlite3_errcode
 func (db *Sqlite3) Errcode() Errno { return 0 }
@@ -95,13 +91,13 @@ func (db *Sqlite3) ExtendedErrcode() Errno { return 0 }
 // -----------------------------------------------------------------------------
 
 //go:linkname doOpen C.sqlite3_open
-func doOpen(filename *Char, ppDb **Sqlite3) Errno
+func doOpen(filename *c.Char, ppDb **Sqlite3) Errno
 
 //go:linkname doOpenV2 C.sqlite3_open_v2
-func doOpenV2(filename *Char, ppDb **Sqlite3, flags OpenFlags, zVfs *Char) Errno
+func doOpenV2(filename *c.Char, ppDb **Sqlite3, flags OpenFlags, zVfs *c.Char) Errno
 
 // OpenFlags represents SQLite open flags.
-type OpenFlags Int
+type OpenFlags c.Int
 
 const (
 	OpenReadOnly      OpenFlags = 0x00000001
@@ -130,7 +126,7 @@ const (
 
 // Opening A New Database Connection
 // filename: Database filename (UTF-8)
-func Open(filename *Char) (db *Sqlite3, err Errno) {
+func Open(filename *c.Char) (db *Sqlite3, err Errno) {
 	err = doOpen(filename, &db)
 	return
 }
@@ -138,7 +134,7 @@ func Open(filename *Char) (db *Sqlite3, err Errno) {
 // Opening A New Database Connection
 // filename: Database filename (UTF-8)
 // zVfs: Name of VFS module to use
-func OpenV2(filename *Char, flags OpenFlags, zVfs *Char) (db *Sqlite3, err Errno) {
+func OpenV2(filename *c.Char, flags OpenFlags, zVfs *c.Char) (db *Sqlite3, err Errno) {
 	err = doOpenV2(filename, &db, flags, zVfs)
 	return
 }
@@ -156,22 +152,22 @@ func (db *Sqlite3) CloseV2() Errno { return 0 }
 // -----------------------------------------------------------------------------
 
 // llgo:link (*Sqlite3).doPrepare C.sqlite3_prepare
-func (*Sqlite3) doPrepare(*Char, Int, **Stmt, **Char) Errno {
+func (*Sqlite3) doPrepare(*c.Char, c.Int, **Stmt, **c.Char) Errno {
 	return 0
 }
 
 // llgo:link (*Sqlite3).doPrepareV2 C.sqlite3_prepare_v2
-func (*Sqlite3) doPrepareV2(*Char, Int, **Stmt, **Char) Errno {
+func (*Sqlite3) doPrepareV2(*c.Char, c.Int, **Stmt, **c.Char) Errno {
 	return 0
 }
 
 // llgo:link (*Sqlite3).doPrepareV3 C.sqlite3_prepare_v3
-func (*Sqlite3) doPrepareV3(*Char, Int, PrepareFlags, **Stmt, **Char) Errno {
+func (*Sqlite3) doPrepareV3(*c.Char, c.Int, PrepareFlags, **Stmt, **c.Char) Errno {
 	return 0
 }
 
 // PrepareFlags represents SQLite prepare flags.
-type PrepareFlags Int
+type PrepareFlags c.Int
 
 const (
 	PreparePersistent PrepareFlags = 0x01
@@ -181,17 +177,17 @@ const (
 
 // Compiling An SQL Statement
 // tail: Pointer to unused portion of sql
-func (db *Sqlite3) Prepare(sql string, tail **Char) (stmt *Stmt, err Errno) {
+func (db *Sqlite3) Prepare(sql string, tail **c.Char) (stmt *Stmt, err Errno) {
 	err = db.doPrepare(c.GoStringData(sql), c.Int(len(sql)), &stmt, tail)
 	return
 }
 
-func (db *Sqlite3) PrepareV2(sql string, tail **Char) (stmt *Stmt, err Errno) {
+func (db *Sqlite3) PrepareV2(sql string, tail **c.Char) (stmt *Stmt, err Errno) {
 	err = db.doPrepareV2(c.GoStringData(sql), c.Int(len(sql)), &stmt, tail)
 	return
 }
 
-func (db *Sqlite3) PrepareV3(sql string, flags PrepareFlags, tail **Char) (stmt *Stmt, err Errno) {
+func (db *Sqlite3) PrepareV3(sql string, flags PrepareFlags, tail **c.Char) (stmt *Stmt, err Errno) {
 	err = db.doPrepareV3(c.GoStringData(sql), c.Int(len(sql)), flags, &stmt, tail)
 	return
 }
@@ -204,10 +200,10 @@ func (stmt *Stmt) Close() Errno { return 0 }
 // -----------------------------------------------------------------------------
 
 // llgo:link (*Stmt).BindInt C.sqlite3_bind_int
-func (*Stmt) BindInt(idx Int, val Int) Errno { return 0 }
+func (*Stmt) BindInt(idx c.Int, val c.Int) Errno { return 0 }
 
 // llgo:link (*Stmt).BindInt64 C.sqlite3_bind_int64
-func (*Stmt) BindInt64(idx Int, val int64) Errno { return 0 }
+func (*Stmt) BindInt64(idx c.Int, val int64) Errno { return 0 }
 
 /*
 const (
@@ -217,7 +213,9 @@ const (
 */
 
 // llgo:link (*Stmt).BindText C.sqlite3_bind_text
-func (*Stmt) BindText(idx Int, val *Char, nByte Int, destructor func(Pointer)) Errno { return 0 }
+func (*Stmt) BindText(idx c.Int, val *c.Char, nByte c.Int, destructor func(c.Pointer)) Errno {
+	return 0
+}
 
 // -----------------------------------------------------------------------------
 
@@ -236,19 +234,19 @@ func (*Stmt) Step() Errno { return 0 }
 // -----------------------------------------------------------------------------
 
 // llgo:link (*Stmt).ColumnCount C.sqlite3_column_count
-func (stmt *Stmt) ColumnCount() Int { return 0 }
+func (stmt *Stmt) ColumnCount() c.Int { return 0 }
 
 // llgo:link (*Stmt).ColumnName C.sqlite3_column_name
-func (stmt *Stmt) ColumnName(idx Int) *Char { return nil }
+func (stmt *Stmt) ColumnName(idx c.Int) *c.Char { return nil }
 
 // llgo:link (*Stmt).ColumnInt C.sqlite3_column_int
-func (stmt *Stmt) ColumnInt(idx Int) Int { return 0 }
+func (stmt *Stmt) ColumnInt(idx c.Int) c.Int { return 0 }
 
 // llgo:link (*Stmt).ColumnInt64 C.sqlite3_column_int64
-func (stmt *Stmt) ColumnInt64(idx Int) int64 { return 0 }
+func (stmt *Stmt) ColumnInt64(idx c.Int) int64 { return 0 }
 
 // llgo:link (*Stmt).ColumnText C.sqlite3_column_text
-func (stmt *Stmt) ColumnText(idx Int) *Char { return nil }
+func (stmt *Stmt) ColumnText(idx c.Int) *c.Char { return nil }
 
 // -----------------------------------------------------------------------------
 
@@ -256,8 +254,8 @@ func (stmt *Stmt) ColumnText(idx Int) *Char { return nil }
 //
 // llgo:link (*Sqlite3).Exec C.sqlite3_exec
 func (*Sqlite3) Exec(
-	sql *Char, callback func(arg Pointer, resultCols Int, colVals, colNames **Char) Int,
-	arg Pointer, errmsg **Char) Errno {
+	sql *c.Char, callback func(arg c.Pointer, resultCols c.Int, colVals, colNames **c.Char) c.Int,
+	arg c.Pointer, errmsg **c.Char) Errno {
 	return 0
 }
 

chore/_xtool/pydump/pydump.go

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/cjson"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/inspect"
+)
+
+func main() {
+	if c.Argc < 2 {
+		c.Fprintf(c.Stderr, c.Str("Usage: pydump <pythonLibPath>\n"))
+		return
+	}
+	pyLib := c.Index(c.Argv, 1)
+
+	py.Initialize()
+
+	root := cjson.Object()
+	root.SetItem(c.Str("name"), cjson.String(pyLib))
+
+	items := cjson.Array()
+	mod := py.ImportModule(pyLib)
+	keys := mod.ModuleGetDict().DictKeys()
+	for i, n := uintptr(0), keys.ListLen(); i < n; i++ {
+		key := keys.ListItem(i)
+		val := mod.GetAttr(key)
+		doc := val.GetAttrString(c.Str("__doc__"))
+		sym := cjson.Object()
+		sym.SetItem(c.Str("type"), cjson.String(val.Type().TypeName().CStr()))
+		sym.SetItem(c.Str("name"), cjson.String(key.CStr()))
+		if doc != nil {
+			sym.SetItem(c.Str("doc"), cjson.String(doc.CStr()))
+		}
+		if val.Callable() != 0 {
+			sig := inspect.Signature(val)
+			sym.SetItem(c.Str("sig"), cjson.String(sig.Str().CStr()))
+		}
+		items.AddItem(sym)
+	}
+	root.SetItem(c.Str("items"), items)
+
+	c.Printf(c.Str("%s\n"), root.CStr())
+}

chore/ardump/ardump.go

@@ -22,7 +22,7 @@ import (
 	"log"
 	"os"
 
-	"github.com/goplus/llgo/x/ar"
+	"github.com/goplus/llgo/xtool/ar"
 )
 
 func main() {

chore/clangast/clangast.go

@@ -22,7 +22,7 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/goplus/llgo/x/clang/parser"
+	"github.com/goplus/llgo/xtool/clang/parser"
 )
 
 var (

chore/clangpp/clangpp.go

@@ -20,7 +20,7 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/goplus/llgo/x/clang/preprocessor"
+	"github.com/goplus/llgo/xtool/clang/preprocessor"
 )
 
 func usage() {

chore/gentests/gentests.go

@@ -22,6 +22,7 @@ import (
 	"strings"
 
 	"github.com/goplus/llgo/internal/llgen"
+	"github.com/goplus/llgo/ssa"
 	"github.com/goplus/mod"
 )
 
@@ -29,10 +30,13 @@ func main() {
 	dir, _, err := mod.FindGoMod(".")
 	check(err)
 
+	ssa.Initialize(ssa.InitAll | ssa.InitNative)
 	llgen.Verbose = false
 
 	llgenDir(dir + "/cl/_testlibc")
 	llgenDir(dir + "/cl/_testrt")
+	llgenDir(dir + "/cl/_testgo")
+	llgenDir(dir+"/cl/_testpy", "")
 	llgenDir(dir+"/cl/_testdata", "")
 }
 

chore/llpyg/llpyg.go

@@ -0,0 +1,249 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"go/ast"
+	"go/token"
+	"go/types"
+	"log"
+	"os"
+	"os/exec"
+	"strings"
+
+	"github.com/goplus/gogen"
+	"github.com/goplus/llgo/chore/llpyg/pysig"
+	"github.com/goplus/llgo/ssa"
+)
+
+type symbol struct {
+	Name string `json:"name"`
+	Type string `json:"type"`
+	Doc  string `json:"doc"`
+	Sig  string `json:"sig"`
+	URL  string `json:"url"`
+}
+
+type module struct {
+	Name  string    `json:"name"`
+	Items []*symbol `json:"items"`
+}
+
+func pydump(pyLib string) (mod module) {
+	var out bytes.Buffer
+	cmd := exec.Command("pydump", pyLib)
+	cmd.Stdout = &out
+	cmd.Stderr = os.Stderr
+	cmd.Run()
+
+	json.Unmarshal(out.Bytes(), &mod)
+	return
+}
+
+func pysigfetch(pyLib string, names []string) (mod module) {
+	var out bytes.Buffer
+	cmd := exec.Command("pysigfetch", pyLib, "-")
+	cmd.Stdin = strings.NewReader(strings.Join(names, " "))
+	cmd.Stdout = &out
+	cmd.Stderr = os.Stderr
+	cmd.Run()
+
+	json.Unmarshal(out.Bytes(), &mod)
+	return
+}
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Fprintln(os.Stderr, "Usage: llpyg <pythonLibPath>")
+		return
+	}
+	pyLib := os.Args[1]
+
+	mod := pydump(pyLib)
+	if mod.Name != pyLib {
+		log.Printf("import module %s failed\n", pyLib)
+		os.Exit(1)
+	}
+	pkg := gogen.NewPackage("", pkgName(pyLib), nil)
+	pkg.Import("unsafe").MarkForceUsed(pkg)       // import _ "unsafe"
+	py := pkg.Import("github.com/goplus/llgo/py") // import "github.com/goplus/llgo/py"
+
+	f := func(cb *gogen.CodeBuilder) int {
+		cb.Val("py." + mod.Name)
+		return 1
+	}
+	defs := pkg.NewConstDefs(pkg.Types.Scope())
+	defs.New(f, 0, 0, nil, "LLGoPackage")
+
+	obj := py.Ref("Object").(*types.TypeName).Type().(*types.Named)
+	objPtr := types.NewPointer(obj)
+	ret := types.NewTuple(pkg.NewParam(0, "", objPtr))
+
+	ctx := &context{pkg, obj, objPtr, ret, nil, py}
+	ctx.genMod(pkg, &mod)
+	skips := ctx.skips
+	if n := len(skips); n > 0 {
+		log.Printf("==> There are %d signatures not found, fetch from doc site\n", n)
+		mod = pysigfetch(pyLib, skips)
+		ctx.skips = skips[:0]
+		ctx.genMod(pkg, &mod)
+		if len(mod.Items) > 0 {
+			skips = ctx.skips
+		}
+		if n := len(skips); n > 0 {
+			log.Printf("==> Skip %d symbols:\n%v\n", n, skips)
+		}
+	}
+
+	pkg.WriteTo(os.Stdout)
+}
+
+func pkgName(pyLib string) string {
+	if pos := strings.LastIndexByte(pyLib, '.'); pos >= 0 {
+		return pyLib[pos+1:]
+	}
+	return pyLib
+}
+
+type context struct {
+	pkg    *gogen.Package
+	obj    *types.Named
+	objPtr *types.Pointer
+	ret    *types.Tuple
+	skips  []string
+	py     gogen.PkgRef
+}
+
+func (ctx *context) genMod(pkg *gogen.Package, mod *module) {
+	for _, sym := range mod.Items {
+		switch sym.Type {
+		case "builtin_function_or_method", "function", "method", "ufunc", "method-wrapper":
+			ctx.genFunc(pkg, sym)
+		case "str", "float", "bool", "type", "dict", "tuple", "list", "object", "module",
+			"int", "set", "frozenset", "flags", "bool_", "pybind11_type", "layout",
+			"memory_format", "qscheme", "dtype", "tensortype", "ellipsis": // skip
+		case "": // pysigfetch: page not found
+			ctx.skips = append(ctx.skips, sym.Name)
+		default:
+			t := sym.Type
+			if len(t) > 0 && (t[0] >= 'a' && t[0] <= 'z') && !strings.HasSuffix(t, "_info") {
+				log.Panicln("unsupport type:", sym.Type)
+			}
+		}
+	}
+}
+
+func (ctx *context) genFunc(pkg *gogen.Package, sym *symbol) {
+	name, symSig := sym.Name, sym.Sig
+	if len(name) == 0 || name[0] == '_' {
+		return
+	}
+	if symSig == "<NULL>" {
+		ctx.skips = append(ctx.skips, name)
+		return
+	}
+	params, variadic := ctx.genParams(pkg, symSig)
+	name = genName(name, -1)
+	sig := types.NewSignatureType(nil, nil, nil, params, ctx.ret, variadic)
+	fn := pkg.NewFuncDecl(token.NoPos, name, sig)
+	list := ctx.genDoc(sym.Doc)
+	if sym.URL != "" {
+		if len(list) > 0 {
+			list = append(list, emptyCommentLine)
+		}
+		list = append(list, genSee(sym.URL))
+	}
+	if len(list) > 0 {
+		list = append(list, emptyCommentLine)
+	}
+	list = append(list, ctx.genLinkname(name, sym))
+	fn.SetComments(pkg, &ast.CommentGroup{List: list})
+	// fn.BodyStart(pkg).End()
+}
+
+func (ctx *context) genParams(pkg *gogen.Package, sig string) (*types.Tuple, bool) {
+	args := pysig.Parse(sig)
+	if len(args) == 0 {
+		return nil, false
+	}
+	n := len(args)
+	objPtr := ctx.objPtr
+	list := make([]*types.Var, 0, n)
+	for i := 0; i < n; i++ {
+		name := args[i].Name
+		if name == "/" {
+			continue
+		}
+		if name == "*" || name == "\\*" {
+			break
+		}
+		if strings.HasPrefix(name, "*") {
+			if name[1] != '*' {
+				list = append(list, ssa.VArg())
+				return types.NewTuple(list...), true
+			}
+			return types.NewTuple(list...), false
+		}
+		list = append(list, pkg.NewParam(0, genName(name, 0), objPtr))
+	}
+	return types.NewTuple(list...), false
+}
+
+func genName(name string, idxDontTitle int) string {
+	parts := strings.Split(name, "_")
+	for i, part := range parts {
+		if i != idxDontTitle && part != "" {
+			if c := part[0]; c >= 'a' && c <= 'z' {
+				part = string(c+'A'-'a') + part[1:]
+			}
+			parts[i] = part
+		}
+	}
+	name = strings.Join(parts, "")
+	switch name {
+	case "default", "func", "var", "range", "":
+		name += "_"
+	}
+	return name
+}
+
+func (ctx *context) genLinkname(name string, sym *symbol) *ast.Comment {
+	return &ast.Comment{Text: "//go:linkname " + name + " py." + sym.Name}
+}
+
+func (ctx *context) genDoc(doc string) []*ast.Comment {
+	if doc == "" {
+		return make([]*ast.Comment, 0, 4)
+	}
+	lines := strings.Split(doc, "\n")
+	list := make([]*ast.Comment, len(lines), len(lines)+4)
+	for i, line := range lines {
+		list[i] = &ast.Comment{Text: "// " + line}
+	}
+	return list
+}
+
+func genSee(url string) *ast.Comment {
+	return &ast.Comment{Text: "// See " + url}
+}
+
+var (
+	emptyCommentLine = &ast.Comment{Text: "//"}
+)

chore/llpyg/pysig/parse.go

@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package pysig
+
+import (
+	"strings"
+)
+
+type Arg struct {
+	Name   string
+	Type   string
+	DefVal string
+}
+
+// Parse parses a Python function signature.
+func Parse(sig string) (args []*Arg) {
+	sig = strings.TrimPrefix(sig, "(")
+	for {
+		pos := strings.IndexAny(sig, ",:=)")
+		if pos <= 0 {
+			return
+		}
+		arg := &Arg{Name: strings.TrimSpace(sig[:pos])}
+		args = append(args, arg)
+		c := sig[pos]
+		sig = sig[pos+1:]
+		switch c {
+		case ',':
+			continue
+		case ':':
+			arg.Type, sig = parseType(sig)
+			if strings.HasPrefix(sig, "=") {
+				arg.DefVal, sig = parseDefVal(sig[1:])
+			}
+		case '=':
+			arg.DefVal, sig = parseDefVal(sig)
+		case ')':
+			return
+		}
+		sig = strings.TrimPrefix(sig, ",")
+	}
+}
+
+const (
+	allSpecials = "([<'\""
+)
+
+var pairStops = map[byte]string{
+	'(':  ")" + allSpecials,
+	'[':  "]" + allSpecials,
+	'<':  ">" + allSpecials,
+	'\'': "'" + allSpecials,
+	'"':  "\"",
+}
+
+func parseText(sig string, stops string) (left string) {
+	for {
+		pos := strings.IndexAny(sig, stops)
+		if pos < 0 {
+			return sig
+		}
+		if c := sig[pos]; c != stops[0] {
+			if pstop, ok := pairStops[c]; ok {
+				sig = strings.TrimPrefix(parseText(sig[pos+1:], pstop), pstop[:1])
+				continue
+			}
+		}
+		return sig[pos:]
+	}
+}
+
+// stops: "=,)"
+func parseType(sig string) (string, string) {
+	left := parseText(sig, "=,)"+allSpecials)
+	return resultOf(sig, left), left
+}
+
+// stops: ",)"
+func parseDefVal(sig string) (string, string) {
+	left := parseText(sig, ",)"+allSpecials)
+	return resultOf(sig, left), left
+}
+
+func resultOf(sig, left string) string {
+	return strings.TrimSpace(sig[:len(sig)-len(left)])
+}

chore/llpyg/pysig/parse_test.go

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package pysig
+
+import "testing"
+
+func TestParse(t *testing.T) {
+	type testCase struct {
+		sig  string
+		args []*Arg
+	}
+	cases := []testCase{
+		{"(start=None, *, unit: 'str | None' = None) -> 'TimedeltaIndex'", []*Arg{
+			{Name: "start", DefVal: "None"},
+			{Name: "*"},
+			{Name: "unit", Type: "'str | None'", DefVal: "None"},
+		}},
+		{"()", nil},
+		{"(a =", []*Arg{{Name: "a"}}},
+		{"(a) -> int", []*Arg{{Name: "a"}}},
+		{"(a: int)", []*Arg{{Name: "a", Type: "int"}}},
+		{"(a: int = 1, b: float)", []*Arg{{Name: "a", Type: "int", DefVal: "1"}, {Name: "b", Type: "float"}}},
+		{"(a = <1>, b = 2.0)", []*Arg{{Name: "a", DefVal: "<1>"}, {Name: "b", DefVal: "2.0"}}},
+		{"(a: 'Suffixes' = ('_x', '_y'))", []*Arg{{Name: "a", Type: "'Suffixes'", DefVal: "('_x', '_y')"}}},
+	}
+	for _, c := range cases {
+		args := Parse(c.sig)
+		if len(args) != len(c.args) {
+			t.Fatalf("%s: len(args) = %v, want %v", c.sig, len(args), len(c.args))
+		}
+		for i, arg := range args {
+			want := c.args[i]
+			if arg.Name != want.Name || arg.Type != want.Type || arg.DefVal != want.DefVal {
+				t.Fatalf("%s: args[%v] = %v, want %v", c.sig, i, arg, want)
+			}
+		}
+	}
+}

chore/llvmtargets/llvm_targets.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/goplus/llvm"
+)
+
+func main() {
+	llvm.InitializeAllTargetInfos()
+	llvm.InitializeAllTargets()
+	llvm.InitializeAllTargetMCs()
+	llvm.InitializeNativeTarget()
+	fmt.Println("targets:")
+	for it := llvm.FirstTarget(); it.C != nil; it = it.NextTarget() {
+		fmt.Printf("- %s: %s\n", it.Name(), it.Description())
+	}
+}

chore/nmdump/nmdump.go

@@ -21,7 +21,7 @@ import (
 	"log"
 	"os"
 
-	"github.com/goplus/llgo/x/env/llvm"
+	"github.com/goplus/llgo/xtool/env/llvm"
 )
 
 func main() {

chore/nmindex/nmindex.go

@@ -20,8 +20,8 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/goplus/llgo/x/env/llvm"
-	"github.com/goplus/llgo/x/nm"
+	"github.com/goplus/llgo/xtool/env/llvm"
+	"github.com/goplus/llgo/xtool/nm"
 )
 
 func main() {
@@ -73,6 +73,11 @@ func makeIndex() {
 }
 
 func query(q string) {
+	if len(q) > 0 {
+		if c := q[0]; c != '*' && c != '_' {
+			q = "_" + q
+		}
+	}
 	files, err := nm.Query(indexDir(), q)
 	check(err)
 	for _, f := range files {

cl/_testdata/fncall/out.ll

@@ -18,14 +18,14 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
   %2 = call i64 @main.max(i64 1, i64 2)
-  ret void
+  ret i32 0
 }
 
 define i64 @main.max(i64 %0, i64 %1) {

cl/_testdata/importpkg/out.ll

@@ -1,7 +1,7 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-@main.hello = global ptr null
+@main.hello = global [7 x i8] undef
 @"main.init$guard" = global ptr null
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
@@ -27,7 +27,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -35,7 +35,7 @@ _llgo_0:
   call void @main.init()
   %2 = call i64 @"github.com/goplus/llgo/cl/internal/stdio.Max"(i64 2, i64 100)
   call void (ptr, ...) @printf(ptr @main.hello)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/cl/internal/stdio.init"()

cl/_testdata/method/out.ll

@@ -1,21 +1,21 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-@main.format = global ptr null
+@main.format = global [10 x i8] undef
 @"main.init$guard" = global ptr null
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
 
-define i64 @"(main.T).Add"(i64 %0, i64 %1) {
+define i64 @main.T.Add(i64 %0, i64 %1) {
 _llgo_0:
   %2 = add i64 %0, %1
   ret i64 %2
 }
 
-define i64 @"(*main.T).Add"(ptr %0, i64 %1) {
+define i64 @"main.(*T).Add"(ptr %0, i64 %1) {
 _llgo_0:
   %2 = load i64, ptr %0, align 4
-  %3 = call i64 @"(main.T).Add"(i64 %2, i64 %1)
+  %3 = call i64 @main.T.Add(i64 %2, i64 %1)
   ret i64 %3
 }
 
@@ -42,15 +42,15 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
-  %2 = call i64 @"(main.T).Add"(i64 1, i64 2)
+  %2 = call i64 @main.T.Add(i64 1, i64 2)
   call void (ptr, ...) @printf(ptr @main.format, i64 %2)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/print/in.go

@@ -13,6 +13,14 @@ func gwrite(b []byte) {
 	c.Printf(c.Str("%s"), b)
 }
 
+func printbool(v bool) {
+	if v {
+		printstring("true")
+	} else {
+		printstring("false")
+	}
+}
+
 func printfloat(v float64) {
 	switch {
 	case v != v:
@@ -177,14 +185,37 @@ func main() {
 	printnl()
 	prinfsub(100.1)
 	printnl()
-	printnum(float32(1e9))
+	printany(float32(1e9))
 	printnl()
-	printnum(float64(2e9))
+	printany(float64(2e9))
+	printnl()
+	var b bool = true
+	if b == true && b != false {
+		println("check bool", b)
+	}
+	n1 := 0b1001
+	n2 := 0b0011
+	println("check &^", n1&^n2 == 0b1000, n2&^n1 == 0b0010)
+	println(true, false, 'a', 'A', rune('中'),
+		int8(1), int16(2), int32(3), int64(4), 5,
+		uint8(1), uint16(2), uint32(3), uint64(4), uintptr(5),
+		"llgo")
+}
+
+func println(args ...any) {
+	for i, v := range args {
+		if i != 0 {
+			printstring(" ")
+		}
+		printany(v)
+	}
 	printnl()
 }
 
-func printnum(v any) {
+func printany(v any) {
 	switch v := v.(type) {
+	case bool:
+		printbool(v)
 	case int:
 		printint(int64(v))
 	case int8:
@@ -211,6 +242,8 @@ func printnum(v any) {
 		printfloat(float64(v))
 	case float64:
 		printfloat(float64(v))
+	case string:
+		printstring(v)
 	}
 }
 

cl/_testdata/printf/out.ll

@@ -1,7 +1,7 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-@main.hello = global ptr null
+@main.hello = global [7 x i8] undef
 @"main.init$guard" = global ptr null
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
@@ -26,14 +26,14 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
   call void (ptr, ...) @printf(ptr @main.hello)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/printval/out.ll

@@ -1,7 +1,7 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-@main.format = global ptr null
+@main.format = global [10 x i8] undef
 @"main.init$guard" = global ptr null
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
@@ -29,14 +29,14 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
   call void (ptr, ...) @printf(ptr @main.format, i64 100)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/ptrmthd/out.ll

@@ -1,12 +1,12 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-@main.format = global ptr null
+@main.format = global [10 x i8] undef
 @"main.init$guard" = global ptr null
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
 
-define void @"(*main.T).Print"(ptr %0, i64 %1) {
+define void @"main.(*T).Print"(ptr %0, i64 %1) {
 _llgo_0:
   call void (ptr, ...) @printf(ptr %0, i64 %1)
   ret void
@@ -35,14 +35,14 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
-  call void @"(*main.T).Print"(ptr @main.format, i64 100)
-  ret void
+  call void @"main.(*T).Print"(ptr @main.format, i64 100)
+  ret i32 0
 }
 
 declare void @printf(ptr, ...)

cl/_testdata/uint/out.ll

@@ -25,7 +25,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -33,7 +33,7 @@ _llgo_0:
   call void @main.init()
   %2 = call i32 @main.f(i32 100)
   %3 = call i32 (ptr, ...) @printf(ptr @0, i32 %2)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/untyped/out.ll

@@ -20,7 +20,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -33,7 +33,7 @@ _llgo_1:                                          ; preds = %_llgo_0
   br label %_llgo_2
 
 _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/utf8/in.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"unicode/utf8"
+)
+
+func main() {
+	var str = "中abcd"
+	for i := 0; i < len(str); {
+		r, n := utf8.DecodeRuneInString(str[i:])
+		i += n
+		println(r)
+	}
+	println(index(2) == 3)
+}
+
+var array = [...]uint8{
+	1, 2, 3, 4, 5, 6, 7, 8,
+}
+
+func index(n int8) uint8 {
+	return array[n]
+}

cl/_testdata/utf8/out.ll

@@ -0,0 +1,105 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+
+@main.array = global [8 x i8] undef
+@"main.init$guard" = global ptr null
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@0 = private unnamed_addr constant [8 x i8] c"\E4\B8\ADabcd\00", align 1
+@1 = private unnamed_addr constant [8 x i8] c"\E4\B8\ADabcd\00", align 1
+
+define i8 @main.index(i8 %0) {
+_llgo_0:
+  %1 = icmp slt i8 %0, 0
+  call void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1 %1)
+  %2 = zext i8 %0 to i64
+  %3 = getelementptr inbounds i8, ptr @main.array, i64 %2
+  %4 = load i8, ptr %3, align 1
+  ret i8 %4
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"unicode/utf8.init"()
+  store i8 1, ptr @main.array, align 1
+  store i8 2, ptr getelementptr inbounds (i8, ptr @main.array, i64 1), align 1
+  store i8 3, ptr getelementptr inbounds (i8, ptr @main.array, i64 2), align 1
+  store i8 4, ptr getelementptr inbounds (i8, ptr @main.array, i64 3), align 1
+  store i8 5, ptr getelementptr inbounds (i8, ptr @main.array, i64 4), align 1
+  store i8 6, ptr getelementptr inbounds (i8, ptr @main.array, i64 5), align 1
+  store i8 7, ptr getelementptr inbounds (i8, ptr @main.array, i64 6), align 1
+  store i8 8, ptr getelementptr inbounds (i8, ptr @main.array, i64 7), align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  br label %_llgo_3
+
+_llgo_1:                                          ; preds = %_llgo_3
+  %2 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 0
+  store ptr @0, ptr %3, align 8
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 1
+  store i64 7, ptr %4, align 4
+  %5 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %2, align 8
+  %6 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %5, 1
+  %7 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %5, i64 %15, i64 %6)
+  %8 = call { i32, i64 } @"unicode/utf8.DecodeRuneInString"(%"github.com/goplus/llgo/internal/runtime.String" %7)
+  %9 = extractvalue { i32, i64 } %8, 0
+  %10 = extractvalue { i32, i64 } %8, 1
+  %11 = add i64 %15, %10
+  %12 = sext i32 %9 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %12)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  br label %_llgo_3
+
+_llgo_2:                                          ; preds = %_llgo_3
+  %13 = call i8 @main.index(i8 2)
+  %14 = icmp eq i8 %13, 3
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %14)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  ret i32 0
+
+_llgo_3:                                          ; preds = %_llgo_1, %_llgo_0
+  %15 = phi i64 [ 0, %_llgo_0 ], [ %11, %_llgo_1 ]
+  %16 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %17 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %16, i32 0, i32 0
+  store ptr @1, ptr %17, align 8
+  %18 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %16, i32 0, i32 1
+  store i64 7, ptr %18, align 4
+  %19 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %16, align 8
+  %20 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %19, 1
+  %21 = icmp slt i64 %15, %20
+  br i1 %21, label %_llgo_1, label %_llgo_2
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1)
+
+declare void @"unicode/utf8.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String", i64, i64)
+
+declare { i32, i64 } @"unicode/utf8.DecodeRuneInString"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1)

cl/_testdata/vargs/out.ll

@@ -1,13 +1,16 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-%"github.com/goplus/llgo/internal/runtime.iface" = type { ptr, ptr }
+%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
 %"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
 
 @"main.init$guard" = global ptr null
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
+@_llgo_int = linkonce global ptr null
 @0 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@1 = private unnamed_addr constant [22 x i8] c"type assertion failed\00", align 1
 
 define void @main.init() {
 _llgo_0:
@@ -16,74 +19,124 @@ _llgo_0:
 
 _llgo_1:                                          ; preds = %_llgo_0
   store i1 true, ptr @"main.init$guard", align 1
+  call void @"main.init$abi"()
   br label %_llgo_2
 
 _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
   %2 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 48)
-  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %2, i64 0
-  %4 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %4, i64 1)
-  store %"github.com/goplus/llgo/internal/runtime.iface" %5, ptr %3, align 8
-  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %2, i64 1
-  %7 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %8 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %7, i64 2)
-  store %"github.com/goplus/llgo/internal/runtime.iface" %8, ptr %6, align 8
-  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %2, i64 2
-  %10 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %11 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %10, i64 3)
-  store %"github.com/goplus/llgo/internal/runtime.iface" %11, ptr %9, align 8
-  %12 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %2, i64 16, i64 3, i64 0, i64 3, i64 3)
-  call void @main.test(%"github.com/goplus/llgo/internal/runtime.Slice" %12)
-  ret void
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %2, i64 0
+  %4 = load ptr, ptr @_llgo_int, align 8
+  %5 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, i32 0, i32 0
+  store ptr %4, ptr %6, align 8
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, i32 0, i32 1
+  store ptr inttoptr (i64 1 to ptr), ptr %7, align 8
+  %8 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, align 8
+  store %"github.com/goplus/llgo/internal/runtime.eface" %8, ptr %3, align 8
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %2, i64 1
+  %10 = load ptr, ptr @_llgo_int, align 8
+  %11 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %11, i32 0, i32 0
+  store ptr %10, ptr %12, align 8
+  %13 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %11, i32 0, i32 1
+  store ptr inttoptr (i64 2 to ptr), ptr %13, align 8
+  %14 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %11, align 8
+  store %"github.com/goplus/llgo/internal/runtime.eface" %14, ptr %9, align 8
+  %15 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %2, i64 2
+  %16 = load ptr, ptr @_llgo_int, align 8
+  %17 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %18 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %17, i32 0, i32 0
+  store ptr %16, ptr %18, align 8
+  %19 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %17, i32 0, i32 1
+  store ptr inttoptr (i64 3 to ptr), ptr %19, align 8
+  %20 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %17, align 8
+  store %"github.com/goplus/llgo/internal/runtime.eface" %20, ptr %15, align 8
+  %21 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %22 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %21, i32 0, i32 0
+  store ptr %2, ptr %22, align 8
+  %23 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %21, i32 0, i32 1
+  store i64 3, ptr %23, align 4
+  %24 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %21, i32 0, i32 2
+  store i64 3, ptr %24, align 4
+  %25 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %21, align 8
+  call void @main.test(%"github.com/goplus/llgo/internal/runtime.Slice" %25)
+  ret i32 0
 }
 
 define void @main.test(%"github.com/goplus/llgo/internal/runtime.Slice" %0) {
 _llgo_0:
-  %1 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %0)
+  %1 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %0, 1
   br label %_llgo_1
 
-_llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
-  %2 = phi i64 [ -1, %_llgo_0 ], [ %3, %_llgo_2 ]
+_llgo_1:                                          ; preds = %_llgo_4, %_llgo_0
+  %2 = phi i64 [ -1, %_llgo_0 ], [ %3, %_llgo_4 ]
   %3 = add i64 %2, 1
   %4 = icmp slt i64 %3, %1
   br i1 %4, label %_llgo_2, label %_llgo_3
 
 _llgo_2:                                          ; preds = %_llgo_1
-  %5 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %0)
-  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %5, i64 %3
-  %7 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %6, align 8
-  %8 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %9 = call i64 @"github.com/goplus/llgo/internal/runtime.I2Int"(%"github.com/goplus/llgo/internal/runtime.iface" %7, ptr %8)
-  %10 = call i32 (ptr, ...) @printf(ptr @0, i64 %9)
-  br label %_llgo_1
+  %5 = icmp slt i64 %3, 0
+  call void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1 %5)
+  %6 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %0, 0
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %6, i64 %3
+  %8 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %7, align 8
+  %9 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %8, 0
+  %10 = load ptr, ptr @_llgo_int, align 8
+  %11 = icmp eq ptr %9, %10
+  br i1 %11, label %_llgo_4, label %_llgo_5
 
 _llgo_3:                                          ; preds = %_llgo_1
   ret void
+
+_llgo_4:                                          ; preds = %_llgo_2
+  %12 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %8, 1
+  %13 = ptrtoint ptr %12 to i64
+  %14 = call i32 (ptr, ...) @printf(ptr @0, i64 %13)
+  br label %_llgo_1
+
+_llgo_5:                                          ; preds = %_llgo_2
+  %15 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %16 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %15, i32 0, i32 0
+  store ptr @1, ptr %16, align 8
+  %17 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %15, i32 0, i32 1
+  store i64 21, ptr %17, align 4
+  %18 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %15, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.String" %18)
+  unreachable
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()
 
 declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
 
+define void @"main.init$abi"() {
+_llgo_0:
+  %0 = load ptr, ptr @_llgo_int, align 8
+  %1 = icmp eq ptr %0, null
+  br i1 %1, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
+  store ptr %2, ptr @_llgo_int, align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
 declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
 
-declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr, i64)
+declare void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1)
 
-declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr, i64, i64, i64, i64, i64)
-
-declare i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice")
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice")
-
-declare i64 @"github.com/goplus/llgo/internal/runtime.I2Int"(%"github.com/goplus/llgo/internal/runtime.iface", ptr)
+declare void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface")
 
 declare i32 @printf(ptr, ...)

cl/_testdata/varinit/out.ll

@@ -20,7 +20,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -30,7 +30,7 @@ _llgo_0:
   %3 = add i64 %2, 1
   store i64 %3, ptr @main.a, align 4
   %4 = load i64, ptr @main.a, align 4
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testgo/eface/in.go

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/internal/abi"
+)
+
+type eface struct {
+	_type *abi.Type
+	data  unsafe.Pointer
+}
+
+func main() {
+	dump(true)
+	dump(0)
+	dump(int8(0))
+	dump(int16(0))
+	dump(int32(0))
+	dump(int64(0))
+	dump(uint(0))
+	dump(uint8(0))
+	dump(uint16(0))
+	dump(uint32(0))
+	dump(uint64(0))
+	dump(uintptr(0))
+	dump(float32(0))
+	dump(float64(0))
+	dump([10]int{})
+	dump(func() {})
+	dump((*int)(nil))
+	dump([]int{})
+	dump("hello")
+	dump(struct {
+		x int8
+		y int
+		z int
+	}{})
+}
+
+func dump(v any) {
+	e := (*eface)(unsafe.Pointer(&v))
+	dumpTyp(e._type, "")
+}
+
+func dumpTyp(t *abi.Type, sep string) {
+	print(sep)
+	println(t.Kind(), t.Size_, t.PtrBytes, t.Hash, t.TFlag, t.Align_)
+}

cl/_testgo/eface/out.ll

@@ -0,0 +1,613 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
+%main.eface = type { ptr, ptr }
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+%"github.com/goplus/llgo/internal/abi.Type" = type { i64, i64, i32, i8, i8, i8, i8, { ptr, ptr }, ptr, %"github.com/goplus/llgo/internal/runtime.String", ptr }
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+%"github.com/goplus/llgo/internal/abi.StructField" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr, i64, %"github.com/goplus/llgo/internal/runtime.String", i1 }
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@_llgo_bool = linkonce global ptr null
+@_llgo_int = linkonce global ptr null
+@_llgo_int8 = linkonce global ptr null
+@_llgo_int16 = linkonce global ptr null
+@_llgo_int32 = linkonce global ptr null
+@_llgo_int64 = linkonce global ptr null
+@_llgo_uint = linkonce global ptr null
+@_llgo_uint8 = linkonce global ptr null
+@_llgo_uint16 = linkonce global ptr null
+@_llgo_uint32 = linkonce global ptr null
+@_llgo_uint64 = linkonce global ptr null
+@_llgo_uintptr = linkonce global ptr null
+@_llgo_float32 = linkonce global ptr null
+@_llgo_float64 = linkonce global ptr null
+@"[10]_llgo_int" = linkonce global ptr null
+@"_llgo_func$2_iS07vIlF2_rZqWB5eU0IvP_9HviM4MYZNkXZDvbac" = linkonce global ptr null
+@"*_llgo_int" = linkonce global ptr null
+@"[]_llgo_int" = linkonce global ptr null
+@1 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+@_llgo_string = linkonce global ptr null
+@"main.struct$RKbUG45GE4henGMAdmt0Rju0JptyR8NsX7IZLsOI0OM" = global ptr null
+@2 = private unnamed_addr constant [2 x i8] c"x\00", align 1
+@3 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@4 = private unnamed_addr constant [2 x i8] c"y\00", align 1
+@5 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@6 = private unnamed_addr constant [2 x i8] c"z\00", align 1
+@7 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@8 = private unnamed_addr constant [5 x i8] c"main\00", align 1
+
+define void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %0) {
+_llgo_0:
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.eface" %0, ptr %1, align 8
+  %2 = getelementptr inbounds %main.eface, ptr %1, i32 0, i32 0
+  %3 = load ptr, ptr %2, align 8
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @0, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 0, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  call void @main.dumpTyp(ptr %3, %"github.com/goplus/llgo/internal/runtime.String" %7)
+  ret void
+}
+
+define void @main.dumpTyp(ptr %0, %"github.com/goplus/llgo/internal/runtime.String" %1) {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %1)
+  %2 = call i64 @"github.com/goplus/llgo/internal/abi.(*Type).Kind"(ptr %0)
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %0, i32 0, i32 0
+  %4 = load i64, ptr %3, align 4
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %0, i32 0, i32 1
+  %6 = load i64, ptr %5, align 4
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %0, i32 0, i32 2
+  %8 = load i32, ptr %7, align 4
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %0, i32 0, i32 3
+  %10 = load i8, ptr %9, align 1
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %0, i32 0, i32 4
+  %12 = load i8, ptr %11, align 1
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %2)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %4)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %6)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %13 = zext i32 %8 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %13)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %14 = zext i8 %10 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %14)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %15 = zext i8 %12 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %15)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  ret void
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/internal/abi.init"()
+  call void @"main.init$abi"()
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = load ptr, ptr @_llgo_bool, align 8
+  %3 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %3, i32 0, i32 0
+  store ptr %2, ptr %4, align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %3, i32 0, i32 1
+  store ptr inttoptr (i64 -1 to ptr), ptr %5, align 8
+  %6 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %3, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %6)
+  %7 = load ptr, ptr @_llgo_int, align 8
+  %8 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %8, i32 0, i32 0
+  store ptr %7, ptr %9, align 8
+  %10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %8, i32 0, i32 1
+  store ptr null, ptr %10, align 8
+  %11 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %8, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %11)
+  %12 = load ptr, ptr @_llgo_int8, align 8
+  %13 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %14 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %13, i32 0, i32 0
+  store ptr %12, ptr %14, align 8
+  %15 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %13, i32 0, i32 1
+  store ptr null, ptr %15, align 8
+  %16 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %13, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %16)
+  %17 = load ptr, ptr @_llgo_int16, align 8
+  %18 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %19 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %18, i32 0, i32 0
+  store ptr %17, ptr %19, align 8
+  %20 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %18, i32 0, i32 1
+  store ptr null, ptr %20, align 8
+  %21 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %18, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %21)
+  %22 = load ptr, ptr @_llgo_int32, align 8
+  %23 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %24 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %23, i32 0, i32 0
+  store ptr %22, ptr %24, align 8
+  %25 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %23, i32 0, i32 1
+  store ptr null, ptr %25, align 8
+  %26 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %23, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %26)
+  %27 = load ptr, ptr @_llgo_int64, align 8
+  %28 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %29 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %28, i32 0, i32 0
+  store ptr %27, ptr %29, align 8
+  %30 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %28, i32 0, i32 1
+  store ptr null, ptr %30, align 8
+  %31 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %28, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %31)
+  %32 = load ptr, ptr @_llgo_uint, align 8
+  %33 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %34 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %33, i32 0, i32 0
+  store ptr %32, ptr %34, align 8
+  %35 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %33, i32 0, i32 1
+  store ptr null, ptr %35, align 8
+  %36 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %33, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %36)
+  %37 = load ptr, ptr @_llgo_uint8, align 8
+  %38 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %39 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %38, i32 0, i32 0
+  store ptr %37, ptr %39, align 8
+  %40 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %38, i32 0, i32 1
+  store ptr null, ptr %40, align 8
+  %41 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %38, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %41)
+  %42 = load ptr, ptr @_llgo_uint16, align 8
+  %43 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %44 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %43, i32 0, i32 0
+  store ptr %42, ptr %44, align 8
+  %45 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %43, i32 0, i32 1
+  store ptr null, ptr %45, align 8
+  %46 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %43, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %46)
+  %47 = load ptr, ptr @_llgo_uint32, align 8
+  %48 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %49 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %48, i32 0, i32 0
+  store ptr %47, ptr %49, align 8
+  %50 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %48, i32 0, i32 1
+  store ptr null, ptr %50, align 8
+  %51 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %48, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %51)
+  %52 = load ptr, ptr @_llgo_uint64, align 8
+  %53 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %54 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %53, i32 0, i32 0
+  store ptr %52, ptr %54, align 8
+  %55 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %53, i32 0, i32 1
+  store ptr null, ptr %55, align 8
+  %56 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %53, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %56)
+  %57 = load ptr, ptr @_llgo_uintptr, align 8
+  %58 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %59 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %58, i32 0, i32 0
+  store ptr %57, ptr %59, align 8
+  %60 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %58, i32 0, i32 1
+  store ptr null, ptr %60, align 8
+  %61 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %58, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %61)
+  %62 = load ptr, ptr @_llgo_float32, align 8
+  %63 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %64 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %63, i32 0, i32 0
+  store ptr %62, ptr %64, align 8
+  %65 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %63, i32 0, i32 1
+  store ptr null, ptr %65, align 8
+  %66 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %63, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %66)
+  %67 = load ptr, ptr @_llgo_float64, align 8
+  %68 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %69 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %68, i32 0, i32 0
+  store ptr %67, ptr %69, align 8
+  %70 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %68, i32 0, i32 1
+  store ptr null, ptr %70, align 8
+  %71 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %68, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %71)
+  %72 = load ptr, ptr @"[10]_llgo_int", align 8
+  %73 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 80)
+  store [10 x i64] zeroinitializer, ptr %73, align 4
+  %74 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %75 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %74, i32 0, i32 0
+  store ptr %72, ptr %75, align 8
+  %76 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %74, i32 0, i32 1
+  store ptr %73, ptr %76, align 8
+  %77 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %74, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %77)
+  %78 = load ptr, ptr @"_llgo_func$2_iS07vIlF2_rZqWB5eU0IvP_9HviM4MYZNkXZDvbac", align 8
+  %79 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %80 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %79, i32 0, i32 0
+  store ptr %78, ptr %80, align 8
+  %81 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %79, i32 0, i32 1
+  store ptr @"main.main$1", ptr %81, align 8
+  %82 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %79, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %82)
+  %83 = load ptr, ptr @"*_llgo_int", align 8
+  %84 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %85 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %84, i32 0, i32 0
+  store ptr %83, ptr %85, align 8
+  %86 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %84, i32 0, i32 1
+  store ptr null, ptr %86, align 8
+  %87 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %84, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %87)
+  %88 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 0)
+  %89 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %90 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %89, i32 0, i32 0
+  store ptr %88, ptr %90, align 8
+  %91 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %89, i32 0, i32 1
+  store i64 0, ptr %91, align 4
+  %92 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %89, i32 0, i32 2
+  store i64 0, ptr %92, align 4
+  %93 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %89, align 8
+  %94 = load ptr, ptr @"[]_llgo_int", align 8
+  %95 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 24)
+  store %"github.com/goplus/llgo/internal/runtime.Slice" %93, ptr %95, align 8
+  %96 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %97 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %96, i32 0, i32 0
+  store ptr %94, ptr %97, align 8
+  %98 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %96, i32 0, i32 1
+  store ptr %95, ptr %98, align 8
+  %99 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %96, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %99)
+  %100 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %101 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %100, i32 0, i32 0
+  store ptr @1, ptr %101, align 8
+  %102 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %100, i32 0, i32 1
+  store i64 5, ptr %102, align 4
+  %103 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %100, align 8
+  %104 = load ptr, ptr @_llgo_string, align 8
+  %105 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %103, ptr %105, align 8
+  %106 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %107 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %106, i32 0, i32 0
+  store ptr %104, ptr %107, align 8
+  %108 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %106, i32 0, i32 1
+  store ptr %105, ptr %108, align 8
+  %109 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %106, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %109)
+  %110 = load ptr, ptr @"main.struct$RKbUG45GE4henGMAdmt0Rju0JptyR8NsX7IZLsOI0OM", align 8
+  %111 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 24)
+  store { i8, i64, i64 } zeroinitializer, ptr %111, align 4
+  %112 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %113 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %112, i32 0, i32 0
+  store ptr %110, ptr %113, align 8
+  %114 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %112, i32 0, i32 1
+  store ptr %111, ptr %114, align 8
+  %115 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %112, align 8
+  call void @main.dump(%"github.com/goplus/llgo/internal/runtime.eface" %115)
+  ret i32 0
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare i64 @"github.com/goplus/llgo/internal/abi.(*Type).Kind"(ptr)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
+
+declare void @"github.com/goplus/llgo/internal/abi.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+define void @"main.init$abi"() {
+_llgo_0:
+  %0 = load ptr, ptr @_llgo_bool, align 8
+  %1 = icmp eq ptr %0, null
+  br i1 %1, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 1)
+  store ptr %2, ptr @_llgo_bool, align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  %3 = load ptr, ptr @_llgo_int, align 8
+  %4 = icmp eq ptr %3, null
+  br i1 %4, label %_llgo_3, label %_llgo_4
+
+_llgo_3:                                          ; preds = %_llgo_2
+  %5 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
+  store ptr %5, ptr @_llgo_int, align 8
+  br label %_llgo_4
+
+_llgo_4:                                          ; preds = %_llgo_3, %_llgo_2
+  %6 = load ptr, ptr @_llgo_int8, align 8
+  %7 = icmp eq ptr %6, null
+  br i1 %7, label %_llgo_5, label %_llgo_6
+
+_llgo_5:                                          ; preds = %_llgo_4
+  %8 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 3)
+  store ptr %8, ptr @_llgo_int8, align 8
+  br label %_llgo_6
+
+_llgo_6:                                          ; preds = %_llgo_5, %_llgo_4
+  %9 = load ptr, ptr @_llgo_int16, align 8
+  %10 = icmp eq ptr %9, null
+  br i1 %10, label %_llgo_7, label %_llgo_8
+
+_llgo_7:                                          ; preds = %_llgo_6
+  %11 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 4)
+  store ptr %11, ptr @_llgo_int16, align 8
+  br label %_llgo_8
+
+_llgo_8:                                          ; preds = %_llgo_7, %_llgo_6
+  %12 = load ptr, ptr @_llgo_int32, align 8
+  %13 = icmp eq ptr %12, null
+  br i1 %13, label %_llgo_9, label %_llgo_10
+
+_llgo_9:                                          ; preds = %_llgo_8
+  %14 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 5)
+  store ptr %14, ptr @_llgo_int32, align 8
+  br label %_llgo_10
+
+_llgo_10:                                         ; preds = %_llgo_9, %_llgo_8
+  %15 = load ptr, ptr @_llgo_int64, align 8
+  %16 = icmp eq ptr %15, null
+  br i1 %16, label %_llgo_11, label %_llgo_12
+
+_llgo_11:                                         ; preds = %_llgo_10
+  %17 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 6)
+  store ptr %17, ptr @_llgo_int64, align 8
+  br label %_llgo_12
+
+_llgo_12:                                         ; preds = %_llgo_11, %_llgo_10
+  %18 = load ptr, ptr @_llgo_uint, align 8
+  %19 = icmp eq ptr %18, null
+  br i1 %19, label %_llgo_13, label %_llgo_14
+
+_llgo_13:                                         ; preds = %_llgo_12
+  %20 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 7)
+  store ptr %20, ptr @_llgo_uint, align 8
+  br label %_llgo_14
+
+_llgo_14:                                         ; preds = %_llgo_13, %_llgo_12
+  %21 = load ptr, ptr @_llgo_uint8, align 8
+  %22 = icmp eq ptr %21, null
+  br i1 %22, label %_llgo_15, label %_llgo_16
+
+_llgo_15:                                         ; preds = %_llgo_14
+  %23 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 8)
+  store ptr %23, ptr @_llgo_uint8, align 8
+  br label %_llgo_16
+
+_llgo_16:                                         ; preds = %_llgo_15, %_llgo_14
+  %24 = load ptr, ptr @_llgo_uint16, align 8
+  %25 = icmp eq ptr %24, null
+  br i1 %25, label %_llgo_17, label %_llgo_18
+
+_llgo_17:                                         ; preds = %_llgo_16
+  %26 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 9)
+  store ptr %26, ptr @_llgo_uint16, align 8
+  br label %_llgo_18
+
+_llgo_18:                                         ; preds = %_llgo_17, %_llgo_16
+  %27 = load ptr, ptr @_llgo_uint32, align 8
+  %28 = icmp eq ptr %27, null
+  br i1 %28, label %_llgo_19, label %_llgo_20
+
+_llgo_19:                                         ; preds = %_llgo_18
+  %29 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 10)
+  store ptr %29, ptr @_llgo_uint32, align 8
+  br label %_llgo_20
+
+_llgo_20:                                         ; preds = %_llgo_19, %_llgo_18
+  %30 = load ptr, ptr @_llgo_uint64, align 8
+  %31 = icmp eq ptr %30, null
+  br i1 %31, label %_llgo_21, label %_llgo_22
+
+_llgo_21:                                         ; preds = %_llgo_20
+  %32 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 11)
+  store ptr %32, ptr @_llgo_uint64, align 8
+  br label %_llgo_22
+
+_llgo_22:                                         ; preds = %_llgo_21, %_llgo_20
+  %33 = load ptr, ptr @_llgo_uintptr, align 8
+  %34 = icmp eq ptr %33, null
+  br i1 %34, label %_llgo_23, label %_llgo_24
+
+_llgo_23:                                         ; preds = %_llgo_22
+  %35 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 12)
+  store ptr %35, ptr @_llgo_uintptr, align 8
+  br label %_llgo_24
+
+_llgo_24:                                         ; preds = %_llgo_23, %_llgo_22
+  %36 = load ptr, ptr @_llgo_float32, align 8
+  %37 = icmp eq ptr %36, null
+  br i1 %37, label %_llgo_25, label %_llgo_26
+
+_llgo_25:                                         ; preds = %_llgo_24
+  %38 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 13)
+  store ptr %38, ptr @_llgo_float32, align 8
+  br label %_llgo_26
+
+_llgo_26:                                         ; preds = %_llgo_25, %_llgo_24
+  %39 = load ptr, ptr @_llgo_float64, align 8
+  %40 = icmp eq ptr %39, null
+  br i1 %40, label %_llgo_27, label %_llgo_28
+
+_llgo_27:                                         ; preds = %_llgo_26
+  %41 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 14)
+  store ptr %41, ptr @_llgo_float64, align 8
+  br label %_llgo_28
+
+_llgo_28:                                         ; preds = %_llgo_27, %_llgo_26
+  %42 = load ptr, ptr @_llgo_int, align 8
+  %43 = load ptr, ptr @"[10]_llgo_int", align 8
+  %44 = icmp eq ptr %43, null
+  br i1 %44, label %_llgo_29, label %_llgo_30
+
+_llgo_29:                                         ; preds = %_llgo_28
+  %45 = call ptr @"github.com/goplus/llgo/internal/runtime.ArrayOf"(i64 10, ptr %42)
+  store ptr %45, ptr @"[10]_llgo_int", align 8
+  br label %_llgo_30
+
+_llgo_30:                                         ; preds = %_llgo_29, %_llgo_28
+  %46 = load ptr, ptr @"_llgo_func$2_iS07vIlF2_rZqWB5eU0IvP_9HviM4MYZNkXZDvbac", align 8
+  %47 = icmp eq ptr %46, null
+  br i1 %47, label %_llgo_31, label %_llgo_32
+
+_llgo_31:                                         ; preds = %_llgo_30
+  %48 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 0)
+  %49 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %50 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %49, i32 0, i32 0
+  store ptr %48, ptr %50, align 8
+  %51 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %49, i32 0, i32 1
+  store i64 0, ptr %51, align 4
+  %52 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %49, i32 0, i32 2
+  store i64 0, ptr %52, align 4
+  %53 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %49, align 8
+  %54 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 0)
+  %55 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %56 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %55, i32 0, i32 0
+  store ptr %54, ptr %56, align 8
+  %57 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %55, i32 0, i32 1
+  store i64 0, ptr %57, align 4
+  %58 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %55, i32 0, i32 2
+  store i64 0, ptr %58, align 4
+  %59 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %55, align 8
+  %60 = call ptr @"github.com/goplus/llgo/internal/runtime.Func"(%"github.com/goplus/llgo/internal/runtime.Slice" %53, %"github.com/goplus/llgo/internal/runtime.Slice" %59, i1 false)
+  store ptr %60, ptr @"_llgo_func$2_iS07vIlF2_rZqWB5eU0IvP_9HviM4MYZNkXZDvbac", align 8
+  br label %_llgo_32
+
+_llgo_32:                                         ; preds = %_llgo_31, %_llgo_30
+  %61 = load ptr, ptr @_llgo_int, align 8
+  %62 = load ptr, ptr @"*_llgo_int", align 8
+  %63 = icmp eq ptr %62, null
+  br i1 %63, label %_llgo_33, label %_llgo_34
+
+_llgo_33:                                         ; preds = %_llgo_32
+  %64 = call ptr @"github.com/goplus/llgo/internal/runtime.PointerTo"(ptr %61)
+  store ptr %64, ptr @"*_llgo_int", align 8
+  br label %_llgo_34
+
+_llgo_34:                                         ; preds = %_llgo_33, %_llgo_32
+  %65 = load ptr, ptr @_llgo_int, align 8
+  %66 = load ptr, ptr @"[]_llgo_int", align 8
+  %67 = icmp eq ptr %66, null
+  br i1 %67, label %_llgo_35, label %_llgo_36
+
+_llgo_35:                                         ; preds = %_llgo_34
+  %68 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceOf"(ptr %65)
+  store ptr %68, ptr @"[]_llgo_int", align 8
+  br label %_llgo_36
+
+_llgo_36:                                         ; preds = %_llgo_35, %_llgo_34
+  %69 = load ptr, ptr @_llgo_string, align 8
+  %70 = icmp eq ptr %69, null
+  br i1 %70, label %_llgo_37, label %_llgo_38
+
+_llgo_37:                                         ; preds = %_llgo_36
+  %71 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 24)
+  store ptr %71, ptr @_llgo_string, align 8
+  br label %_llgo_38
+
+_llgo_38:                                         ; preds = %_llgo_37, %_llgo_36
+  %72 = load ptr, ptr @_llgo_int8, align 8
+  %73 = load ptr, ptr @_llgo_int, align 8
+  %74 = load ptr, ptr @_llgo_int, align 8
+  %75 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %76 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %75, i32 0, i32 0
+  store ptr @2, ptr %76, align 8
+  %77 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %75, i32 0, i32 1
+  store i64 1, ptr %77, align 4
+  %78 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %75, align 8
+  %79 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %80 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %79, i32 0, i32 0
+  store ptr @3, ptr %80, align 8
+  %81 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %79, i32 0, i32 1
+  store i64 0, ptr %81, align 4
+  %82 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %79, align 8
+  %83 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %78, ptr %72, i64 0, %"github.com/goplus/llgo/internal/runtime.String" %82, i1 false)
+  %84 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %85 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %84, i32 0, i32 0
+  store ptr @4, ptr %85, align 8
+  %86 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %84, i32 0, i32 1
+  store i64 1, ptr %86, align 4
+  %87 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %84, align 8
+  %88 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %89 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %88, i32 0, i32 0
+  store ptr @5, ptr %89, align 8
+  %90 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %88, i32 0, i32 1
+  store i64 0, ptr %90, align 4
+  %91 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %88, align 8
+  %92 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %87, ptr %73, i64 8, %"github.com/goplus/llgo/internal/runtime.String" %91, i1 false)
+  %93 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %94 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %93, i32 0, i32 0
+  store ptr @6, ptr %94, align 8
+  %95 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %93, i32 0, i32 1
+  store i64 1, ptr %95, align 4
+  %96 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %93, align 8
+  %97 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %98 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %97, i32 0, i32 0
+  store ptr @7, ptr %98, align 8
+  %99 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %97, i32 0, i32 1
+  store i64 0, ptr %99, align 4
+  %100 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %97, align 8
+  %101 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %96, ptr %74, i64 16, %"github.com/goplus/llgo/internal/runtime.String" %100, i1 false)
+  %102 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %103 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %102, i32 0, i32 0
+  store ptr @8, ptr %103, align 8
+  %104 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %102, i32 0, i32 1
+  store i64 4, ptr %104, align 4
+  %105 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %102, align 8
+  %106 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 168)
+  %107 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %106, i64 0
+  store %"github.com/goplus/llgo/internal/abi.StructField" %83, ptr %107, align 8
+  %108 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %106, i64 1
+  store %"github.com/goplus/llgo/internal/abi.StructField" %92, ptr %108, align 8
+  %109 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %106, i64 2
+  store %"github.com/goplus/llgo/internal/abi.StructField" %101, ptr %109, align 8
+  %110 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %111 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %110, i32 0, i32 0
+  store ptr %106, ptr %111, align 8
+  %112 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %110, i32 0, i32 1
+  store i64 3, ptr %112, align 4
+  %113 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %110, i32 0, i32 2
+  store i64 3, ptr %113, align 4
+  %114 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %110, align 8
+  %115 = call ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String" %105, i64 24, %"github.com/goplus/llgo/internal/runtime.Slice" %114)
+  store ptr %115, ptr @"main.struct$RKbUG45GE4henGMAdmt0Rju0JptyR8NsX7IZLsOI0OM", align 8
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.ArrayOf"(i64, ptr)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64)
+
+define void @"main.main$1"() {
+_llgo_0:
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Func"(%"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.Slice", i1)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.PointerTo"(ptr)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.SliceOf"(ptr)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String", i64, %"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String", ptr, i64, %"github.com/goplus/llgo/internal/runtime.String", i1)

cl/_testgo/errors/in.go

@@ -0,0 +1,22 @@
+package main
+
+// New returns an error that formats as the given text.
+// Each call to New returns a distinct error value even if the text is identical.
+func New(text string) error {
+	return &errorString{text}
+}
+
+// errorString is a trivial implementation of error.
+type errorString struct {
+	s string
+}
+
+func (e *errorString) Error() string {
+	return e.s
+}
+
+func main() {
+	err := New("an error")
+	println(err)
+	println(err.Error())
+}

cl/_testgo/errors/out.ll

@@ -0,0 +1,303 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.iface" = type { ptr, ptr }
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+%main.errorString = type { %"github.com/goplus/llgo/internal/runtime.String" }
+%"github.com/goplus/llgo/internal/abi.StructField" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr, i64, %"github.com/goplus/llgo/internal/runtime.String", i1 }
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+%"github.com/goplus/llgo/internal/abi.Method" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr, ptr, ptr }
+%"github.com/goplus/llgo/internal/abi.Imethod" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr }
+
+@"main.init$guard" = global ptr null
+@"*_llgo_main.errorString" = global ptr null
+@_llgo_main.errorString = global ptr null
+@"main.struct$QTufDJA9wEDzuzgkA-ZSrLqW-B6lWN8O25mTSglAoLQ" = global ptr null
+@_llgo_string = linkonce global ptr null
+@0 = private unnamed_addr constant [2 x i8] c"s\00", align 1
+@1 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@2 = private unnamed_addr constant [5 x i8] c"main\00", align 1
+@3 = private unnamed_addr constant [6 x i8] c"Error\00", align 1
+@"_llgo_func$zNDVRsWTIpUPKouNUS805RGX--IV9qVK8B31IZbg5to" = linkonce global ptr null
+@4 = private unnamed_addr constant [5 x i8] c"main\00", align 1
+@5 = private unnamed_addr constant [17 x i8] c"main.errorString\00", align 1
+@"_llgo_iface$Fh8eUJ-Gw4e6TYuajcFIOSCuqSPKAt5nS4ow7xeGXEU" = linkonce global ptr null
+@6 = private unnamed_addr constant [6 x i8] c"Error\00", align 1
+@7 = private unnamed_addr constant [5 x i8] c"main\00", align 1
+@8 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@9 = private unnamed_addr constant [9 x i8] c"an error\00", align 1
+
+define %"github.com/goplus/llgo/internal/runtime.iface" @main.New(%"github.com/goplus/llgo/internal/runtime.String" %0) {
+_llgo_0:
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 16)
+  %2 = getelementptr inbounds %main.errorString, ptr %1, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.String" %0, ptr %2, align 8
+  %3 = load ptr, ptr @"*_llgo_main.errorString", align 8
+  %4 = load ptr, ptr @"_llgo_iface$Fh8eUJ-Gw4e6TYuajcFIOSCuqSPKAt5nS4ow7xeGXEU", align 8
+  %5 = call ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr %4, ptr %3)
+  %6 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %6, i32 0, i32 0
+  store ptr %5, ptr %7, align 8
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %6, i32 0, i32 1
+  store ptr %1, ptr %8, align 8
+  %9 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %6, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.iface" %9
+}
+
+define %"github.com/goplus/llgo/internal/runtime.String" @"main.(*errorString).Error"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %main.errorString, ptr %0, i32 0, i32 0
+  %2 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %1, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.String" %2
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"main.init$abi"()
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 0
+  store ptr @9, ptr %3, align 8
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 1
+  store i64 8, ptr %4, align 4
+  %5 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %2, align 8
+  %6 = call %"github.com/goplus/llgo/internal/runtime.iface" @main.New(%"github.com/goplus/llgo/internal/runtime.String" %5)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintIface"(%"github.com/goplus/llgo/internal/runtime.iface" %6)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %7 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %6, 0
+  %8 = getelementptr ptr, ptr %7, i64 3
+  %9 = load ptr, ptr %8, align 8
+  %10 = extractvalue %"github.com/goplus/llgo/internal/runtime.iface" %6, 1
+  %11 = alloca { ptr, ptr }, align 8
+  %12 = getelementptr inbounds { ptr, ptr }, ptr %11, i32 0, i32 0
+  store ptr %9, ptr %12, align 8
+  %13 = getelementptr inbounds { ptr, ptr }, ptr %11, i32 0, i32 1
+  store ptr %10, ptr %13, align 8
+  %14 = load { ptr, ptr }, ptr %11, align 8
+  %15 = extractvalue { ptr, ptr } %14, 1
+  %16 = extractvalue { ptr, ptr } %14, 0
+  %17 = call %"github.com/goplus/llgo/internal/runtime.String" %16(ptr %15)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %17)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  ret i32 0
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
+
+define void @"main.init$abi"() {
+_llgo_0:
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.NewNamed"(i64 25, i64 0, i64 1)
+  store ptr %0, ptr @_llgo_main.errorString, align 8
+  %1 = load ptr, ptr @_llgo_string, align 8
+  %2 = icmp eq ptr %1, null
+  br i1 %2, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 24)
+  store ptr %3, ptr @_llgo_string, align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  %4 = load ptr, ptr @_llgo_string, align 8
+  %5 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %5, i32 0, i32 0
+  store ptr @0, ptr %6, align 8
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %5, i32 0, i32 1
+  store i64 1, ptr %7, align 4
+  %8 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %5, align 8
+  %9 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %9, i32 0, i32 0
+  store ptr @1, ptr %10, align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %9, i32 0, i32 1
+  store i64 0, ptr %11, align 4
+  %12 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %9, align 8
+  %13 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %8, ptr %4, i64 0, %"github.com/goplus/llgo/internal/runtime.String" %12, i1 false)
+  %14 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %15 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %14, i32 0, i32 0
+  store ptr @2, ptr %15, align 8
+  %16 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %14, i32 0, i32 1
+  store i64 4, ptr %16, align 4
+  %17 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %14, align 8
+  %18 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 56)
+  %19 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %18, i64 0
+  store %"github.com/goplus/llgo/internal/abi.StructField" %13, ptr %19, align 8
+  %20 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %21 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %20, i32 0, i32 0
+  store ptr %18, ptr %21, align 8
+  %22 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %20, i32 0, i32 1
+  store i64 1, ptr %22, align 4
+  %23 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %20, i32 0, i32 2
+  store i64 1, ptr %23, align 4
+  %24 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %20, align 8
+  %25 = call ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String" %17, i64 16, %"github.com/goplus/llgo/internal/runtime.Slice" %24)
+  store ptr %25, ptr @"main.struct$QTufDJA9wEDzuzgkA-ZSrLqW-B6lWN8O25mTSglAoLQ", align 8
+  %26 = load ptr, ptr @"main.struct$QTufDJA9wEDzuzgkA-ZSrLqW-B6lWN8O25mTSglAoLQ", align 8
+  %27 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %28 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %27, i32 0, i32 0
+  store ptr @3, ptr %28, align 8
+  %29 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %27, i32 0, i32 1
+  store i64 5, ptr %29, align 4
+  %30 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %27, align 8
+  %31 = load ptr, ptr @_llgo_string, align 8
+  %32 = load ptr, ptr @"_llgo_func$zNDVRsWTIpUPKouNUS805RGX--IV9qVK8B31IZbg5to", align 8
+  %33 = icmp eq ptr %32, null
+  br i1 %33, label %_llgo_3, label %_llgo_4
+
+_llgo_3:                                          ; preds = %_llgo_2
+  %34 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 0)
+  %35 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %36 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %35, i32 0, i32 0
+  store ptr %34, ptr %36, align 8
+  %37 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %35, i32 0, i32 1
+  store i64 0, ptr %37, align 4
+  %38 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %35, i32 0, i32 2
+  store i64 0, ptr %38, align 4
+  %39 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %35, align 8
+  %40 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
+  %41 = getelementptr ptr, ptr %40, i64 0
+  store ptr %31, ptr %41, align 8
+  %42 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %43 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %42, i32 0, i32 0
+  store ptr %40, ptr %43, align 8
+  %44 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %42, i32 0, i32 1
+  store i64 1, ptr %44, align 4
+  %45 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %42, i32 0, i32 2
+  store i64 1, ptr %45, align 4
+  %46 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %42, align 8
+  %47 = call ptr @"github.com/goplus/llgo/internal/runtime.Func"(%"github.com/goplus/llgo/internal/runtime.Slice" %39, %"github.com/goplus/llgo/internal/runtime.Slice" %46, i1 false)
+  store ptr %47, ptr @"_llgo_func$zNDVRsWTIpUPKouNUS805RGX--IV9qVK8B31IZbg5to", align 8
+  br label %_llgo_4
+
+_llgo_4:                                          ; preds = %_llgo_3, %_llgo_2
+  %48 = load ptr, ptr @"_llgo_func$zNDVRsWTIpUPKouNUS805RGX--IV9qVK8B31IZbg5to", align 8
+  %49 = alloca %"github.com/goplus/llgo/internal/abi.Method", align 8
+  %50 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %49, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.String" %30, ptr %50, align 8
+  %51 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %49, i32 0, i32 1
+  store ptr %48, ptr %51, align 8
+  %52 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %49, i32 0, i32 2
+  store ptr @"main.(*errorString).Error", ptr %52, align 8
+  %53 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %49, i32 0, i32 3
+  store ptr @"main.(*errorString).Error", ptr %53, align 8
+  %54 = load %"github.com/goplus/llgo/internal/abi.Method", ptr %49, align 8
+  %55 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 40)
+  %56 = getelementptr %"github.com/goplus/llgo/internal/abi.Method", ptr %55, i64 0
+  store %"github.com/goplus/llgo/internal/abi.Method" %54, ptr %56, align 8
+  %57 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %58 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %57, i32 0, i32 0
+  store ptr %55, ptr %58, align 8
+  %59 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %57, i32 0, i32 1
+  store i64 1, ptr %59, align 4
+  %60 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %57, i32 0, i32 2
+  store i64 1, ptr %60, align 4
+  %61 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %57, align 8
+  %62 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %63 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %62, i32 0, i32 0
+  store ptr @4, ptr %63, align 8
+  %64 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %62, i32 0, i32 1
+  store i64 4, ptr %64, align 4
+  %65 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %62, align 8
+  %66 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %67 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %66, i32 0, i32 0
+  store ptr @5, ptr %67, align 8
+  %68 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %66, i32 0, i32 1
+  store i64 16, ptr %68, align 4
+  %69 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %66, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.InitNamed"(ptr %0, %"github.com/goplus/llgo/internal/runtime.String" %65, %"github.com/goplus/llgo/internal/runtime.String" %69, ptr %26, { ptr, i64, i64 } zeroinitializer, %"github.com/goplus/llgo/internal/runtime.Slice" %61)
+  %70 = load ptr, ptr @_llgo_main.errorString, align 8
+  %71 = call ptr @"github.com/goplus/llgo/internal/runtime.PointerTo"(ptr %70)
+  store ptr %71, ptr @"*_llgo_main.errorString", align 8
+  %72 = load ptr, ptr @"_llgo_func$zNDVRsWTIpUPKouNUS805RGX--IV9qVK8B31IZbg5to", align 8
+  %73 = load ptr, ptr @"_llgo_iface$Fh8eUJ-Gw4e6TYuajcFIOSCuqSPKAt5nS4ow7xeGXEU", align 8
+  %74 = icmp eq ptr %73, null
+  br i1 %74, label %_llgo_5, label %_llgo_6
+
+_llgo_5:                                          ; preds = %_llgo_4
+  %75 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %76 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %75, i32 0, i32 0
+  store ptr @6, ptr %76, align 8
+  %77 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %75, i32 0, i32 1
+  store i64 5, ptr %77, align 4
+  %78 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %75, align 8
+  %79 = alloca %"github.com/goplus/llgo/internal/abi.Imethod", align 8
+  %80 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Imethod", ptr %79, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.String" %78, ptr %80, align 8
+  %81 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Imethod", ptr %79, i32 0, i32 1
+  store ptr %72, ptr %81, align 8
+  %82 = load %"github.com/goplus/llgo/internal/abi.Imethod", ptr %79, align 8
+  %83 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 24)
+  %84 = getelementptr %"github.com/goplus/llgo/internal/abi.Imethod", ptr %83, i64 0
+  store %"github.com/goplus/llgo/internal/abi.Imethod" %82, ptr %84, align 8
+  %85 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %86 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %85, i32 0, i32 0
+  store ptr %83, ptr %86, align 8
+  %87 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %85, i32 0, i32 1
+  store i64 1, ptr %87, align 4
+  %88 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %85, i32 0, i32 2
+  store i64 1, ptr %88, align 4
+  %89 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %85, align 8
+  %90 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %91 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %90, i32 0, i32 0
+  store ptr @7, ptr %91, align 8
+  %92 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %90, i32 0, i32 1
+  store i64 4, ptr %92, align 4
+  %93 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %90, align 8
+  %94 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %95 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %94, i32 0, i32 0
+  store ptr @8, ptr %95, align 8
+  %96 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %94, i32 0, i32 1
+  store i64 0, ptr %96, align 4
+  %97 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %94, align 8
+  %98 = call ptr @"github.com/goplus/llgo/internal/runtime.Interface"(%"github.com/goplus/llgo/internal/runtime.String" %93, %"github.com/goplus/llgo/internal/runtime.String" %97, %"github.com/goplus/llgo/internal/runtime.Slice" %89)
+  store ptr %98, ptr @"_llgo_iface$Fh8eUJ-Gw4e6TYuajcFIOSCuqSPKAt5nS4ow7xeGXEU", align 8
+  br label %_llgo_6
+
+_llgo_6:                                          ; preds = %_llgo_5, %_llgo_4
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.NewNamed"(i64, i64, i64)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String", i64, %"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String", ptr, i64, %"github.com/goplus/llgo/internal/runtime.String", i1)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.InitNamed"(ptr, %"github.com/goplus/llgo/internal/runtime.String", %"github.com/goplus/llgo/internal/runtime.String", ptr, %"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Func"(%"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.Slice", i1)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.PointerTo"(ptr)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Interface"(%"github.com/goplus/llgo/internal/runtime.String", %"github.com/goplus/llgo/internal/runtime.String", %"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.NewItab"(ptr, ptr)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintIface"(%"github.com/goplus/llgo/internal/runtime.iface")
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")

cl/_testgo/strucintf/in.go

@@ -0,0 +1,27 @@
+package main
+
+import "github.com/goplus/llgo/cl/internal/foo"
+
+func Foo() any {
+	return struct{ v int }{1}
+}
+
+func main() {
+	v := Foo()
+	if x, ok := v.(struct{ v int }); ok {
+		println(x.v)
+	} else {
+		println("Foo: not ok")
+	}
+	bar := foo.Bar()
+	if x, ok := bar.(struct{ V int }); ok {
+		println(x.V)
+	} else {
+		println("Bar: not ok")
+	}
+	if x, ok := foo.F().(struct{ v int }); ok {
+		println(x.v)
+	} else {
+		println("F: not ok")
+	}
+}

cl/_testgo/strucintf/out.ll

@@ -0,0 +1,353 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+%"github.com/goplus/llgo/internal/abi.StructField" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr, i64, %"github.com/goplus/llgo/internal/runtime.String", i1 }
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+
+@"main.init$guard" = global ptr null
+@"main.struct$MYpsoM99ZwFY087IpUOkIw1zjBA_sgFXVodmn1m-G88" = global ptr null
+@_llgo_int = linkonce global ptr null
+@0 = private unnamed_addr constant [2 x i8] c"v\00", align 1
+@1 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@2 = private unnamed_addr constant [5 x i8] c"main\00", align 1
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@"_llgo_struct$K-dZ9QotZfVPz2a0YdRa9vmZUuDXPTqZOlMShKEDJtk" = linkonce global ptr null
+@3 = private unnamed_addr constant [2 x i8] c"V\00", align 1
+@4 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@5 = private unnamed_addr constant [5 x i8] c"main\00", align 1
+@6 = private unnamed_addr constant [12 x i8] c"Foo: not ok\00", align 1
+@7 = private unnamed_addr constant [12 x i8] c"Bar: not ok\00", align 1
+@8 = private unnamed_addr constant [10 x i8] c"F: not ok\00", align 1
+
+define %"github.com/goplus/llgo/internal/runtime.eface" @main.Foo() {
+_llgo_0:
+  %0 = alloca { i64 }, align 8
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %0, i64 8)
+  %2 = getelementptr inbounds { i64 }, ptr %1, i32 0, i32 0
+  store i64 1, ptr %2, align 4
+  %3 = load { i64 }, ptr %1, align 4
+  %4 = load ptr, ptr @"main.struct$MYpsoM99ZwFY087IpUOkIw1zjBA_sgFXVodmn1m-G88", align 8
+  %5 = extractvalue { i64 } %3, 0
+  %6 = inttoptr i64 %5 to ptr
+  %7 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %7, i32 0, i32 0
+  store ptr %4, ptr %8, align 8
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %7, i32 0, i32 1
+  store ptr %6, ptr %9, align 8
+  %10 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %7, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.eface" %10
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/cl/internal/foo.init"()
+  call void @"main.init$abi"()
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = call %"github.com/goplus/llgo/internal/runtime.eface" @main.Foo()
+  %3 = alloca { i64 }, align 8
+  %4 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %3, i64 8)
+  %5 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %2, 0
+  %6 = load ptr, ptr @"main.struct$MYpsoM99ZwFY087IpUOkIw1zjBA_sgFXVodmn1m-G88", align 8
+  %7 = icmp eq ptr %5, %6
+  br i1 %7, label %_llgo_10, label %_llgo_11
+
+_llgo_1:                                          ; preds = %_llgo_12
+  %8 = getelementptr inbounds { i64 }, ptr %4, i32 0, i32 0
+  %9 = load i64, ptr %8, align 4
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %9)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_3, %_llgo_1
+  %10 = call %"github.com/goplus/llgo/internal/runtime.eface" @"github.com/goplus/llgo/cl/internal/foo.Bar"()
+  %11 = alloca { i64 }, align 8
+  %12 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %11, i64 8)
+  %13 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %10, 0
+  %14 = load ptr, ptr @"_llgo_struct$K-dZ9QotZfVPz2a0YdRa9vmZUuDXPTqZOlMShKEDJtk", align 8
+  %15 = icmp eq ptr %13, %14
+  br i1 %15, label %_llgo_13, label %_llgo_14
+
+_llgo_3:                                          ; preds = %_llgo_12
+  %16 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %17 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %16, i32 0, i32 0
+  store ptr @6, ptr %17, align 8
+  %18 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %16, i32 0, i32 1
+  store i64 11, ptr %18, align 4
+  %19 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %16, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %19)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  br label %_llgo_2
+
+_llgo_4:                                          ; preds = %_llgo_15
+  %20 = getelementptr inbounds { i64 }, ptr %12, i32 0, i32 0
+  %21 = load i64, ptr %20, align 4
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %21)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  br label %_llgo_5
+
+_llgo_5:                                          ; preds = %_llgo_6, %_llgo_4
+  %22 = alloca { i64 }, align 8
+  %23 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %22, i64 8)
+  %24 = call %"github.com/goplus/llgo/internal/runtime.eface" @"github.com/goplus/llgo/cl/internal/foo.F"()
+  %25 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %24, 0
+  %26 = load ptr, ptr @"main.struct$MYpsoM99ZwFY087IpUOkIw1zjBA_sgFXVodmn1m-G88", align 8
+  %27 = icmp eq ptr %25, %26
+  br i1 %27, label %_llgo_16, label %_llgo_17
+
+_llgo_6:                                          ; preds = %_llgo_15
+  %28 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %29 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %28, i32 0, i32 0
+  store ptr @7, ptr %29, align 8
+  %30 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %28, i32 0, i32 1
+  store i64 11, ptr %30, align 4
+  %31 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %28, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %31)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  br label %_llgo_5
+
+_llgo_7:                                          ; preds = %_llgo_18
+  %32 = getelementptr inbounds { i64 }, ptr %23, i32 0, i32 0
+  %33 = load i64, ptr %32, align 4
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %33)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  br label %_llgo_8
+
+_llgo_8:                                          ; preds = %_llgo_9, %_llgo_7
+  ret i32 0
+
+_llgo_9:                                          ; preds = %_llgo_18
+  %34 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %35 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %34, i32 0, i32 0
+  store ptr @8, ptr %35, align 8
+  %36 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %34, i32 0, i32 1
+  store i64 9, ptr %36, align 4
+  %37 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %34, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %37)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  br label %_llgo_8
+
+_llgo_10:                                         ; preds = %_llgo_0
+  %38 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %2, 1
+  %39 = ptrtoint ptr %38 to i64
+  %40 = alloca { i64 }, align 8
+  %41 = getelementptr inbounds { i64 }, ptr %40, i32 0, i32 0
+  store i64 %39, ptr %41, align 4
+  %42 = load { i64 }, ptr %40, align 4
+  %43 = alloca { { i64 }, i1 }, align 8
+  %44 = getelementptr inbounds { { i64 }, i1 }, ptr %43, i32 0, i32 0
+  store { i64 } %42, ptr %44, align 4
+  %45 = getelementptr inbounds { { i64 }, i1 }, ptr %43, i32 0, i32 1
+  store i1 true, ptr %45, align 1
+  %46 = load { { i64 }, i1 }, ptr %43, align 4
+  br label %_llgo_12
+
+_llgo_11:                                         ; preds = %_llgo_0
+  %47 = alloca { { i64 }, i1 }, align 8
+  %48 = getelementptr inbounds { { i64 }, i1 }, ptr %47, i32 0, i32 0
+  store { i64 } zeroinitializer, ptr %48, align 4
+  %49 = getelementptr inbounds { { i64 }, i1 }, ptr %47, i32 0, i32 1
+  store i1 false, ptr %49, align 1
+  %50 = load { { i64 }, i1 }, ptr %47, align 4
+  br label %_llgo_12
+
+_llgo_12:                                         ; preds = %_llgo_11, %_llgo_10
+  %51 = phi { { i64 }, i1 } [ %46, %_llgo_10 ], [ %50, %_llgo_11 ]
+  %52 = extractvalue { { i64 }, i1 } %51, 0
+  store { i64 } %52, ptr %4, align 4
+  %53 = extractvalue { { i64 }, i1 } %51, 1
+  br i1 %53, label %_llgo_1, label %_llgo_3
+
+_llgo_13:                                         ; preds = %_llgo_2
+  %54 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %10, 1
+  %55 = ptrtoint ptr %54 to i64
+  %56 = alloca { i64 }, align 8
+  %57 = getelementptr inbounds { i64 }, ptr %56, i32 0, i32 0
+  store i64 %55, ptr %57, align 4
+  %58 = load { i64 }, ptr %56, align 4
+  %59 = alloca { { i64 }, i1 }, align 8
+  %60 = getelementptr inbounds { { i64 }, i1 }, ptr %59, i32 0, i32 0
+  store { i64 } %58, ptr %60, align 4
+  %61 = getelementptr inbounds { { i64 }, i1 }, ptr %59, i32 0, i32 1
+  store i1 true, ptr %61, align 1
+  %62 = load { { i64 }, i1 }, ptr %59, align 4
+  br label %_llgo_15
+
+_llgo_14:                                         ; preds = %_llgo_2
+  %63 = alloca { { i64 }, i1 }, align 8
+  %64 = getelementptr inbounds { { i64 }, i1 }, ptr %63, i32 0, i32 0
+  store { i64 } zeroinitializer, ptr %64, align 4
+  %65 = getelementptr inbounds { { i64 }, i1 }, ptr %63, i32 0, i32 1
+  store i1 false, ptr %65, align 1
+  %66 = load { { i64 }, i1 }, ptr %63, align 4
+  br label %_llgo_15
+
+_llgo_15:                                         ; preds = %_llgo_14, %_llgo_13
+  %67 = phi { { i64 }, i1 } [ %62, %_llgo_13 ], [ %66, %_llgo_14 ]
+  %68 = extractvalue { { i64 }, i1 } %67, 0
+  store { i64 } %68, ptr %12, align 4
+  %69 = extractvalue { { i64 }, i1 } %67, 1
+  br i1 %69, label %_llgo_4, label %_llgo_6
+
+_llgo_16:                                         ; preds = %_llgo_5
+  %70 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %24, 1
+  %71 = ptrtoint ptr %70 to i64
+  %72 = alloca { i64 }, align 8
+  %73 = getelementptr inbounds { i64 }, ptr %72, i32 0, i32 0
+  store i64 %71, ptr %73, align 4
+  %74 = load { i64 }, ptr %72, align 4
+  %75 = alloca { { i64 }, i1 }, align 8
+  %76 = getelementptr inbounds { { i64 }, i1 }, ptr %75, i32 0, i32 0
+  store { i64 } %74, ptr %76, align 4
+  %77 = getelementptr inbounds { { i64 }, i1 }, ptr %75, i32 0, i32 1
+  store i1 true, ptr %77, align 1
+  %78 = load { { i64 }, i1 }, ptr %75, align 4
+  br label %_llgo_18
+
+_llgo_17:                                         ; preds = %_llgo_5
+  %79 = alloca { { i64 }, i1 }, align 8
+  %80 = getelementptr inbounds { { i64 }, i1 }, ptr %79, i32 0, i32 0
+  store { i64 } zeroinitializer, ptr %80, align 4
+  %81 = getelementptr inbounds { { i64 }, i1 }, ptr %79, i32 0, i32 1
+  store i1 false, ptr %81, align 1
+  %82 = load { { i64 }, i1 }, ptr %79, align 4
+  br label %_llgo_18
+
+_llgo_18:                                         ; preds = %_llgo_17, %_llgo_16
+  %83 = phi { { i64 }, i1 } [ %78, %_llgo_16 ], [ %82, %_llgo_17 ]
+  %84 = extractvalue { { i64 }, i1 } %83, 0
+  store { i64 } %84, ptr %23, align 4
+  %85 = extractvalue { { i64 }, i1 } %83, 1
+  br i1 %85, label %_llgo_7, label %_llgo_9
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr, i64)
+
+define void @"main.init$abi"() {
+_llgo_0:
+  %0 = load ptr, ptr @_llgo_int, align 8
+  %1 = icmp eq ptr %0, null
+  br i1 %1, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
+  store ptr %2, ptr @_llgo_int, align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  %3 = load ptr, ptr @_llgo_int, align 8
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @0, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 1, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %8, i32 0, i32 0
+  store ptr @1, ptr %9, align 8
+  %10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %8, i32 0, i32 1
+  store i64 0, ptr %10, align 4
+  %11 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %8, align 8
+  %12 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %7, ptr %3, i64 0, %"github.com/goplus/llgo/internal/runtime.String" %11, i1 false)
+  %13 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %14 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %13, i32 0, i32 0
+  store ptr @2, ptr %14, align 8
+  %15 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %13, i32 0, i32 1
+  store i64 4, ptr %15, align 4
+  %16 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %13, align 8
+  %17 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 56)
+  %18 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %17, i64 0
+  store %"github.com/goplus/llgo/internal/abi.StructField" %12, ptr %18, align 8
+  %19 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %20 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %19, i32 0, i32 0
+  store ptr %17, ptr %20, align 8
+  %21 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %19, i32 0, i32 1
+  store i64 1, ptr %21, align 4
+  %22 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %19, i32 0, i32 2
+  store i64 1, ptr %22, align 4
+  %23 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %19, align 8
+  %24 = call ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String" %16, i64 8, %"github.com/goplus/llgo/internal/runtime.Slice" %23)
+  store ptr %24, ptr @"main.struct$MYpsoM99ZwFY087IpUOkIw1zjBA_sgFXVodmn1m-G88", align 8
+  %25 = load ptr, ptr @_llgo_int, align 8
+  %26 = load ptr, ptr @"_llgo_struct$K-dZ9QotZfVPz2a0YdRa9vmZUuDXPTqZOlMShKEDJtk", align 8
+  %27 = icmp eq ptr %26, null
+  br i1 %27, label %_llgo_3, label %_llgo_4
+
+_llgo_3:                                          ; preds = %_llgo_2
+  %28 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %29 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %28, i32 0, i32 0
+  store ptr @3, ptr %29, align 8
+  %30 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %28, i32 0, i32 1
+  store i64 1, ptr %30, align 4
+  %31 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %28, align 8
+  %32 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %33 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %32, i32 0, i32 0
+  store ptr @4, ptr %33, align 8
+  %34 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %32, i32 0, i32 1
+  store i64 0, ptr %34, align 4
+  %35 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %32, align 8
+  %36 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %31, ptr %25, i64 0, %"github.com/goplus/llgo/internal/runtime.String" %35, i1 false)
+  %37 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %38 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %37, i32 0, i32 0
+  store ptr @5, ptr %38, align 8
+  %39 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %37, i32 0, i32 1
+  store i64 4, ptr %39, align 4
+  %40 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %37, align 8
+  %41 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 56)
+  %42 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %41, i64 0
+  store %"github.com/goplus/llgo/internal/abi.StructField" %36, ptr %42, align 8
+  %43 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %44 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %43, i32 0, i32 0
+  store ptr %41, ptr %44, align 8
+  %45 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %43, i32 0, i32 1
+  store i64 1, ptr %45, align 4
+  %46 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %43, i32 0, i32 2
+  store i64 1, ptr %46, align 4
+  %47 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %43, align 8
+  %48 = call ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String" %40, i64 8, %"github.com/goplus/llgo/internal/runtime.Slice" %47)
+  store ptr %48, ptr @"_llgo_struct$K-dZ9QotZfVPz2a0YdRa9vmZUuDXPTqZOlMShKEDJtk", align 8
+  br label %_llgo_4
+
+_llgo_4:                                          ; preds = %_llgo_3, %_llgo_2
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String", i64, %"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String", ptr, i64, %"github.com/goplus/llgo/internal/runtime.String", i1)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64)
+
+declare void @"github.com/goplus/llgo/cl/internal/foo.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
+
+declare %"github.com/goplus/llgo/internal/runtime.eface" @"github.com/goplus/llgo/cl/internal/foo.Bar"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare %"github.com/goplus/llgo/internal/runtime.eface" @"github.com/goplus/llgo/cl/internal/foo.F"()

cl/_testgo/struczero/in.go

@@ -0,0 +1,26 @@
+package main
+
+import "github.com/goplus/llgo/cl/internal/foo"
+
+type bar struct {
+	pb *byte
+	f  float32
+}
+
+func Foo(v any) (ret bar, ok bool) {
+	ret, ok = v.(bar)
+	return
+}
+
+func Bar(v any) (ret foo.Foo, ok bool) {
+	ret, ok = v.(foo.Foo)
+	return
+}
+
+func main() {
+	ret, ok := Foo(nil)
+	println(ret.pb, ret.f, "notOk:", !ok)
+
+	ret2, ok2 := Bar(foo.Foo{})
+	println(ret2.Pb(), ret2.F, ok2)
+}

cl/_testgo/struczero/out.ll

@@ -0,0 +1,482 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/cl/internal/foo.Foo" = type { ptr, float }
+%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
+%main.bar = type { ptr, float }
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+%"github.com/goplus/llgo/internal/abi.StructField" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr, i64, %"github.com/goplus/llgo/internal/runtime.String", i1 }
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+%"github.com/goplus/llgo/internal/abi.Method" = type { %"github.com/goplus/llgo/internal/runtime.String", ptr, ptr, ptr }
+
+@"main.init$guard" = global ptr null
+@"_llgo_github.com/goplus/llgo/cl/internal/foo.Foo" = linkonce global ptr null
+@"main.struct$qQwZyFy_4JRalRxVVsVD8R09X5t58tWjTrtJPtHbEjs" = global ptr null
+@"*_llgo_byte" = linkonce global ptr null
+@_llgo_byte = linkonce global ptr null
+@_llgo_float32 = linkonce global ptr null
+@0 = private unnamed_addr constant [3 x i8] c"pb\00", align 1
+@1 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@2 = private unnamed_addr constant [2 x i8] c"F\00", align 1
+@3 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@4 = private unnamed_addr constant [5 x i8] c"main\00", align 1
+@5 = private unnamed_addr constant [3 x i8] c"Pb\00", align 1
+@"_llgo_func$NfGSLZ1QiKRoFkKeqYSXE5hUU5bpeteSJKrbMNUzYRE" = linkonce global ptr null
+@6 = private unnamed_addr constant [39 x i8] c"github.com/goplus/llgo/cl/internal/foo\00", align 1
+@7 = private unnamed_addr constant [43 x i8] c"github.com/goplus/llgo/cl/internal/foo.Foo\00", align 1
+@_llgo_main.bar = global ptr null
+@"main.struct$Ci43nzKYkRLddRL_N4mkykxLXfJlqJGS5n04LKThPNo" = global ptr null
+@8 = private unnamed_addr constant [3 x i8] c"pb\00", align 1
+@9 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@10 = private unnamed_addr constant [2 x i8] c"f\00", align 1
+@11 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@12 = private unnamed_addr constant [5 x i8] c"main\00", align 1
+@13 = private unnamed_addr constant [5 x i8] c"main\00", align 1
+@14 = private unnamed_addr constant [9 x i8] c"main.bar\00", align 1
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@15 = private unnamed_addr constant [7 x i8] c"notOk:\00", align 1
+
+define { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } @main.Bar(%"github.com/goplus/llgo/internal/runtime.eface" %0) {
+_llgo_0:
+  %1 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 0
+  %2 = load ptr, ptr @"_llgo_github.com/goplus/llgo/cl/internal/foo.Foo", align 8
+  %3 = icmp eq ptr %1, %2
+  br i1 %3, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %4 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 1
+  %5 = load %"github.com/goplus/llgo/cl/internal/foo.Foo", ptr %4, align 8
+  %6 = alloca { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 }, align 8
+  %7 = getelementptr inbounds { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 }, ptr %6, i32 0, i32 0
+  store %"github.com/goplus/llgo/cl/internal/foo.Foo" %5, ptr %7, align 8
+  %8 = getelementptr inbounds { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 }, ptr %6, i32 0, i32 1
+  store i1 true, ptr %8, align 1
+  %9 = load { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 }, ptr %6, align 8
+  br label %_llgo_3
+
+_llgo_2:                                          ; preds = %_llgo_0
+  %10 = alloca { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 }, align 8
+  %11 = getelementptr inbounds { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 }, ptr %10, i32 0, i32 0
+  store { ptr, double } zeroinitializer, ptr %11, align 8
+  %12 = getelementptr inbounds { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 }, ptr %10, i32 0, i32 1
+  store i1 false, ptr %12, align 1
+  %13 = load { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 }, ptr %10, align 8
+  br label %_llgo_3
+
+_llgo_3:                                          ; preds = %_llgo_2, %_llgo_1
+  %14 = phi { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } [ %9, %_llgo_1 ], [ %13, %_llgo_2 ]
+  %15 = extractvalue { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } %14, 0
+  %16 = extractvalue { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } %14, 1
+  %mrv = insertvalue { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } poison, %"github.com/goplus/llgo/cl/internal/foo.Foo" %15, 0
+  %mrv1 = insertvalue { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } %mrv, i1 %16, 1
+  ret { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } %mrv1
+}
+
+define { %main.bar, i1 } @main.Foo(%"github.com/goplus/llgo/internal/runtime.eface" %0) {
+_llgo_0:
+  %1 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 0
+  %2 = load ptr, ptr @_llgo_main.bar, align 8
+  %3 = icmp eq ptr %1, %2
+  br i1 %3, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %4 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 1
+  %5 = load %main.bar, ptr %4, align 8
+  %6 = alloca { %main.bar, i1 }, align 8
+  %7 = getelementptr inbounds { %main.bar, i1 }, ptr %6, i32 0, i32 0
+  store %main.bar %5, ptr %7, align 8
+  %8 = getelementptr inbounds { %main.bar, i1 }, ptr %6, i32 0, i32 1
+  store i1 true, ptr %8, align 1
+  %9 = load { %main.bar, i1 }, ptr %6, align 8
+  br label %_llgo_3
+
+_llgo_2:                                          ; preds = %_llgo_0
+  %10 = alloca { %main.bar, i1 }, align 8
+  %11 = getelementptr inbounds { %main.bar, i1 }, ptr %10, i32 0, i32 0
+  store { ptr, double } zeroinitializer, ptr %11, align 8
+  %12 = getelementptr inbounds { %main.bar, i1 }, ptr %10, i32 0, i32 1
+  store i1 false, ptr %12, align 1
+  %13 = load { %main.bar, i1 }, ptr %10, align 8
+  br label %_llgo_3
+
+_llgo_3:                                          ; preds = %_llgo_2, %_llgo_1
+  %14 = phi { %main.bar, i1 } [ %9, %_llgo_1 ], [ %13, %_llgo_2 ]
+  %15 = extractvalue { %main.bar, i1 } %14, 0
+  %16 = extractvalue { %main.bar, i1 } %14, 1
+  %mrv = insertvalue { %main.bar, i1 } poison, %main.bar %15, 0
+  %mrv1 = insertvalue { %main.bar, i1 } %mrv, i1 %16, 1
+  ret { %main.bar, i1 } %mrv1
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/cl/internal/foo.init"()
+  call void @"main.init$abi"()
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = alloca %main.bar, align 8
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %2, i64 16)
+  %4 = call { %main.bar, i1 } @main.Foo(%"github.com/goplus/llgo/internal/runtime.eface" zeroinitializer)
+  %5 = extractvalue { %main.bar, i1 } %4, 0
+  store %main.bar %5, ptr %3, align 8
+  %6 = extractvalue { %main.bar, i1 } %4, 1
+  %7 = getelementptr inbounds %main.bar, ptr %3, i32 0, i32 0
+  %8 = load ptr, ptr %7, align 8
+  %9 = getelementptr inbounds %main.bar, ptr %3, i32 0, i32 1
+  %10 = load float, ptr %9, align 4
+  %11 = xor i1 %6, true
+  %12 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %13 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %12, i32 0, i32 0
+  store ptr @15, ptr %13, align 8
+  %14 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %12, i32 0, i32 1
+  store i64 6, ptr %14, align 4
+  %15 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %12, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.PrintPointer"(ptr %8)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %16 = fpext float %10 to double
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double %16)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %15)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %11)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %17 = alloca %"github.com/goplus/llgo/cl/internal/foo.Foo", align 8
+  %18 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %17, i64 16)
+  %19 = load ptr, ptr @"_llgo_github.com/goplus/llgo/cl/internal/foo.Foo", align 8
+  %20 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/cl/internal/foo.Foo" zeroinitializer, ptr %20, align 8
+  %21 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %22 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %21, i32 0, i32 0
+  store ptr %19, ptr %22, align 8
+  %23 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %21, i32 0, i32 1
+  store ptr %20, ptr %23, align 8
+  %24 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %21, align 8
+  %25 = call { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } @main.Bar(%"github.com/goplus/llgo/internal/runtime.eface" %24)
+  %26 = extractvalue { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } %25, 0
+  store %"github.com/goplus/llgo/cl/internal/foo.Foo" %26, ptr %18, align 8
+  %27 = extractvalue { %"github.com/goplus/llgo/cl/internal/foo.Foo", i1 } %25, 1
+  %28 = load %"github.com/goplus/llgo/cl/internal/foo.Foo", ptr %18, align 8
+  %29 = call ptr @"github.com/goplus/llgo/cl/internal/foo.Foo.Pb"(%"github.com/goplus/llgo/cl/internal/foo.Foo" %28)
+  %30 = getelementptr inbounds %"github.com/goplus/llgo/cl/internal/foo.Foo", ptr %18, i32 0, i32 1
+  %31 = load float, ptr %30, align 4
+  call void @"github.com/goplus/llgo/internal/runtime.PrintPointer"(ptr %29)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %32 = fpext float %31 to double
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double %32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %27)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  ret i32 0
+}
+
+define void @"main.init$abi"() {
+_llgo_0:
+  %0 = load ptr, ptr @"_llgo_github.com/goplus/llgo/cl/internal/foo.Foo", align 8
+  %1 = icmp eq ptr %0, null
+  br i1 %1, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.NewNamed"(i64 25, i64 1, i64 1)
+  store ptr %2, ptr @"_llgo_github.com/goplus/llgo/cl/internal/foo.Foo", align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  %3 = load ptr, ptr @_llgo_byte, align 8
+  %4 = icmp eq ptr %3, null
+  br i1 %4, label %_llgo_3, label %_llgo_4
+
+_llgo_3:                                          ; preds = %_llgo_2
+  %5 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 8)
+  store ptr %5, ptr @_llgo_byte, align 8
+  br label %_llgo_4
+
+_llgo_4:                                          ; preds = %_llgo_3, %_llgo_2
+  %6 = load ptr, ptr @_llgo_byte, align 8
+  %7 = load ptr, ptr @"*_llgo_byte", align 8
+  %8 = icmp eq ptr %7, null
+  br i1 %8, label %_llgo_5, label %_llgo_6
+
+_llgo_5:                                          ; preds = %_llgo_4
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.PointerTo"(ptr %6)
+  store ptr %9, ptr @"*_llgo_byte", align 8
+  br label %_llgo_6
+
+_llgo_6:                                          ; preds = %_llgo_5, %_llgo_4
+  %10 = load ptr, ptr @"*_llgo_byte", align 8
+  %11 = load ptr, ptr @_llgo_float32, align 8
+  %12 = icmp eq ptr %11, null
+  br i1 %12, label %_llgo_7, label %_llgo_8
+
+_llgo_7:                                          ; preds = %_llgo_6
+  %13 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 13)
+  store ptr %13, ptr @_llgo_float32, align 8
+  br label %_llgo_8
+
+_llgo_8:                                          ; preds = %_llgo_7, %_llgo_6
+  %14 = load ptr, ptr @_llgo_float32, align 8
+  %15 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %16 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %15, i32 0, i32 0
+  store ptr @0, ptr %16, align 8
+  %17 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %15, i32 0, i32 1
+  store i64 2, ptr %17, align 4
+  %18 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %15, align 8
+  %19 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %20 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %19, i32 0, i32 0
+  store ptr @1, ptr %20, align 8
+  %21 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %19, i32 0, i32 1
+  store i64 0, ptr %21, align 4
+  %22 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %19, align 8
+  %23 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %18, ptr %10, i64 0, %"github.com/goplus/llgo/internal/runtime.String" %22, i1 false)
+  %24 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %25 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %24, i32 0, i32 0
+  store ptr @2, ptr %25, align 8
+  %26 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %24, i32 0, i32 1
+  store i64 1, ptr %26, align 4
+  %27 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %24, align 8
+  %28 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %29 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %28, i32 0, i32 0
+  store ptr @3, ptr %29, align 8
+  %30 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %28, i32 0, i32 1
+  store i64 0, ptr %30, align 4
+  %31 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %28, align 8
+  %32 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %27, ptr %14, i64 8, %"github.com/goplus/llgo/internal/runtime.String" %31, i1 false)
+  %33 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %34 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %33, i32 0, i32 0
+  store ptr @4, ptr %34, align 8
+  %35 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %33, i32 0, i32 1
+  store i64 4, ptr %35, align 4
+  %36 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %33, align 8
+  %37 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 112)
+  %38 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %37, i64 0
+  store %"github.com/goplus/llgo/internal/abi.StructField" %23, ptr %38, align 8
+  %39 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %37, i64 1
+  store %"github.com/goplus/llgo/internal/abi.StructField" %32, ptr %39, align 8
+  %40 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %41 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %40, i32 0, i32 0
+  store ptr %37, ptr %41, align 8
+  %42 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %40, i32 0, i32 1
+  store i64 2, ptr %42, align 4
+  %43 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %40, i32 0, i32 2
+  store i64 2, ptr %43, align 4
+  %44 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %40, align 8
+  %45 = call ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String" %36, i64 16, %"github.com/goplus/llgo/internal/runtime.Slice" %44)
+  store ptr %45, ptr @"main.struct$qQwZyFy_4JRalRxVVsVD8R09X5t58tWjTrtJPtHbEjs", align 8
+  %46 = load ptr, ptr @"main.struct$qQwZyFy_4JRalRxVVsVD8R09X5t58tWjTrtJPtHbEjs", align 8
+  br i1 %1, label %_llgo_9, label %_llgo_10
+
+_llgo_9:                                          ; preds = %_llgo_8
+  %47 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %48 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %47, i32 0, i32 0
+  store ptr @5, ptr %48, align 8
+  %49 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %47, i32 0, i32 1
+  store i64 2, ptr %49, align 4
+  %50 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %47, align 8
+  %51 = load ptr, ptr @"*_llgo_byte", align 8
+  %52 = load ptr, ptr @"_llgo_func$NfGSLZ1QiKRoFkKeqYSXE5hUU5bpeteSJKrbMNUzYRE", align 8
+  %53 = icmp eq ptr %52, null
+  br i1 %53, label %_llgo_11, label %_llgo_12
+
+_llgo_10:                                         ; preds = %_llgo_12, %_llgo_8
+  %54 = call ptr @"github.com/goplus/llgo/internal/runtime.NewNamed"(i64 25, i64 0, i64 0)
+  store ptr %54, ptr @_llgo_main.bar, align 8
+  %55 = load ptr, ptr @"*_llgo_byte", align 8
+  %56 = load ptr, ptr @_llgo_float32, align 8
+  %57 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %58 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %57, i32 0, i32 0
+  store ptr @8, ptr %58, align 8
+  %59 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %57, i32 0, i32 1
+  store i64 2, ptr %59, align 4
+  %60 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %57, align 8
+  %61 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %62 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %61, i32 0, i32 0
+  store ptr @9, ptr %62, align 8
+  %63 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %61, i32 0, i32 1
+  store i64 0, ptr %63, align 4
+  %64 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %61, align 8
+  %65 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %60, ptr %55, i64 0, %"github.com/goplus/llgo/internal/runtime.String" %64, i1 false)
+  %66 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %67 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %66, i32 0, i32 0
+  store ptr @10, ptr %67, align 8
+  %68 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %66, i32 0, i32 1
+  store i64 1, ptr %68, align 4
+  %69 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %66, align 8
+  %70 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %71 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %70, i32 0, i32 0
+  store ptr @11, ptr %71, align 8
+  %72 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %70, i32 0, i32 1
+  store i64 0, ptr %72, align 4
+  %73 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %70, align 8
+  %74 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %69, ptr %56, i64 8, %"github.com/goplus/llgo/internal/runtime.String" %73, i1 false)
+  %75 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %76 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %75, i32 0, i32 0
+  store ptr @12, ptr %76, align 8
+  %77 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %75, i32 0, i32 1
+  store i64 4, ptr %77, align 4
+  %78 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %75, align 8
+  %79 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 112)
+  %80 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %79, i64 0
+  store %"github.com/goplus/llgo/internal/abi.StructField" %65, ptr %80, align 8
+  %81 = getelementptr %"github.com/goplus/llgo/internal/abi.StructField", ptr %79, i64 1
+  store %"github.com/goplus/llgo/internal/abi.StructField" %74, ptr %81, align 8
+  %82 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %83 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %82, i32 0, i32 0
+  store ptr %79, ptr %83, align 8
+  %84 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %82, i32 0, i32 1
+  store i64 2, ptr %84, align 4
+  %85 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %82, i32 0, i32 2
+  store i64 2, ptr %85, align 4
+  %86 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %82, align 8
+  %87 = call ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String" %78, i64 16, %"github.com/goplus/llgo/internal/runtime.Slice" %86)
+  store ptr %87, ptr @"main.struct$Ci43nzKYkRLddRL_N4mkykxLXfJlqJGS5n04LKThPNo", align 8
+  %88 = load ptr, ptr @"main.struct$Ci43nzKYkRLddRL_N4mkykxLXfJlqJGS5n04LKThPNo", align 8
+  %89 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %90 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %89, i32 0, i32 0
+  store ptr @13, ptr %90, align 8
+  %91 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %89, i32 0, i32 1
+  store i64 4, ptr %91, align 4
+  %92 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %89, align 8
+  %93 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %94 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %93, i32 0, i32 0
+  store ptr @14, ptr %94, align 8
+  %95 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %93, i32 0, i32 1
+  store i64 8, ptr %95, align 4
+  %96 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %93, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.InitNamed"(ptr %54, %"github.com/goplus/llgo/internal/runtime.String" %92, %"github.com/goplus/llgo/internal/runtime.String" %96, ptr %88, { ptr, i64, i64 } zeroinitializer, { ptr, i64, i64 } zeroinitializer)
+  ret void
+
+_llgo_11:                                         ; preds = %_llgo_9
+  %97 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 0)
+  %98 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %99 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %98, i32 0, i32 0
+  store ptr %97, ptr %99, align 8
+  %100 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %98, i32 0, i32 1
+  store i64 0, ptr %100, align 4
+  %101 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %98, i32 0, i32 2
+  store i64 0, ptr %101, align 4
+  %102 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %98, align 8
+  %103 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
+  %104 = getelementptr ptr, ptr %103, i64 0
+  store ptr %51, ptr %104, align 8
+  %105 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %106 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %105, i32 0, i32 0
+  store ptr %103, ptr %106, align 8
+  %107 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %105, i32 0, i32 1
+  store i64 1, ptr %107, align 4
+  %108 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %105, i32 0, i32 2
+  store i64 1, ptr %108, align 4
+  %109 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %105, align 8
+  %110 = call ptr @"github.com/goplus/llgo/internal/runtime.Func"(%"github.com/goplus/llgo/internal/runtime.Slice" %102, %"github.com/goplus/llgo/internal/runtime.Slice" %109, i1 false)
+  store ptr %110, ptr @"_llgo_func$NfGSLZ1QiKRoFkKeqYSXE5hUU5bpeteSJKrbMNUzYRE", align 8
+  br label %_llgo_12
+
+_llgo_12:                                         ; preds = %_llgo_11, %_llgo_9
+  %111 = load ptr, ptr @"_llgo_func$NfGSLZ1QiKRoFkKeqYSXE5hUU5bpeteSJKrbMNUzYRE", align 8
+  %112 = alloca %"github.com/goplus/llgo/internal/abi.Method", align 8
+  %113 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %112, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.String" %50, ptr %113, align 8
+  %114 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %112, i32 0, i32 1
+  store ptr %111, ptr %114, align 8
+  %115 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %112, i32 0, i32 2
+  store ptr @"github.com/goplus/llgo/cl/internal/foo.(*Foo).Pb", ptr %115, align 8
+  %116 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %112, i32 0, i32 3
+  store ptr @"github.com/goplus/llgo/cl/internal/foo.(*Foo).Pb", ptr %116, align 8
+  %117 = load %"github.com/goplus/llgo/internal/abi.Method", ptr %112, align 8
+  %118 = alloca %"github.com/goplus/llgo/internal/abi.Method", align 8
+  %119 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %118, i32 0, i32 0
+  store %"github.com/goplus/llgo/internal/runtime.String" %50, ptr %119, align 8
+  %120 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %118, i32 0, i32 1
+  store ptr %111, ptr %120, align 8
+  %121 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %118, i32 0, i32 2
+  store ptr @"github.com/goplus/llgo/cl/internal/foo.(*Foo).Pb", ptr %121, align 8
+  %122 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Method", ptr %118, i32 0, i32 3
+  store ptr @"github.com/goplus/llgo/cl/internal/foo.Foo.Pb", ptr %122, align 8
+  %123 = load %"github.com/goplus/llgo/internal/abi.Method", ptr %118, align 8
+  %124 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 40)
+  %125 = getelementptr %"github.com/goplus/llgo/internal/abi.Method", ptr %124, i64 0
+  store %"github.com/goplus/llgo/internal/abi.Method" %123, ptr %125, align 8
+  %126 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %127 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %126, i32 0, i32 0
+  store ptr %124, ptr %127, align 8
+  %128 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %126, i32 0, i32 1
+  store i64 1, ptr %128, align 4
+  %129 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %126, i32 0, i32 2
+  store i64 1, ptr %129, align 4
+  %130 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %126, align 8
+  %131 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 40)
+  %132 = getelementptr %"github.com/goplus/llgo/internal/abi.Method", ptr %131, i64 0
+  store %"github.com/goplus/llgo/internal/abi.Method" %117, ptr %132, align 8
+  %133 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %134 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %133, i32 0, i32 0
+  store ptr %131, ptr %134, align 8
+  %135 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %133, i32 0, i32 1
+  store i64 1, ptr %135, align 4
+  %136 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %133, i32 0, i32 2
+  store i64 1, ptr %136, align 4
+  %137 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %133, align 8
+  %138 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %139 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %138, i32 0, i32 0
+  store ptr @6, ptr %139, align 8
+  %140 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %138, i32 0, i32 1
+  store i64 38, ptr %140, align 4
+  %141 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %138, align 8
+  %142 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %143 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %142, i32 0, i32 0
+  store ptr @7, ptr %143, align 8
+  %144 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %142, i32 0, i32 1
+  store i64 42, ptr %144, align 4
+  %145 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %142, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.InitNamed"(ptr %2, %"github.com/goplus/llgo/internal/runtime.String" %141, %"github.com/goplus/llgo/internal/runtime.String" %145, ptr %46, %"github.com/goplus/llgo/internal/runtime.Slice" %130, %"github.com/goplus/llgo/internal/runtime.Slice" %137)
+  br label %_llgo_10
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.NewNamed"(i64, i64, i64)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.PointerTo"(ptr)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Struct"(%"github.com/goplus/llgo/internal/runtime.String", i64, %"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String", ptr, i64, %"github.com/goplus/llgo/internal/runtime.String", i1)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.InitNamed"(ptr, %"github.com/goplus/llgo/internal/runtime.String", %"github.com/goplus/llgo/internal/runtime.String", ptr, %"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Func"(%"github.com/goplus/llgo/internal/runtime.Slice", %"github.com/goplus/llgo/internal/runtime.Slice", i1)
+
+declare ptr @"github.com/goplus/llgo/cl/internal/foo.(*Foo).Pb"(ptr)
+
+declare ptr @"github.com/goplus/llgo/cl/internal/foo.Foo.Pb"(%"github.com/goplus/llgo/cl/internal/foo.Foo")
+
+declare void @"github.com/goplus/llgo/cl/internal/foo.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr, i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintPointer"(ptr)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1)

cl/_testlibc/argv/out.ll

@@ -19,7 +19,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -36,7 +36,7 @@ _llgo_1:                                          ; preds = %_llgo_3
   br label %_llgo_3
 
 _llgo_2:                                          ; preds = %_llgo_3
-  ret void
+  ret i32 0
 
 _llgo_3:                                          ; preds = %_llgo_1, %_llgo_0
   %7 = phi i32 [ 0, %_llgo_0 ], [ %6, %_llgo_1 ]

cl/_testlibc/sqlite/in.go

@@ -2,7 +2,7 @@ package main
 
 import (
 	"github.com/goplus/llgo/c"
-	"github.com/goplus/llgo/x/sqlite"
+	"github.com/goplus/llgo/c/sqlite"
 )
 
 func main() {

cl/_testlibc/sqlite/out.ll

@@ -13,7 +13,7 @@ _llgo_0:
   br i1 %1, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %2 = call ptr @sqlite3_errstr()
+  %2 = call ptr @sqlite3_errstr(i32 %0)
   %3 = call i32 (ptr, ...) @printf(ptr @0, i32 %0, ptr %2)
   call void @exit(i32 1)
   br label %_llgo_2
@@ -35,21 +35,21 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
-  %2 = call { ptr, i32 } @"github.com/goplus/llgo/x/sqlite.OpenV2"(ptr @1, i32 130, ptr null)
+  %2 = call { ptr, i32 } @"github.com/goplus/llgo/c/sqlite.OpenV2"(ptr @1, i32 130, ptr null)
   %3 = extractvalue { ptr, i32 } %2, 0
   %4 = extractvalue { ptr, i32 } %2, 1
   call void @main.check(i32 %4)
-  %5 = call i32 @sqlite3_close()
-  ret void
+  %5 = call i32 @sqlite3_close(ptr %3)
+  ret i32 0
 }
 
-declare ptr @sqlite3_errstr()
+declare ptr @sqlite3_errstr(i32)
 
 declare i32 @printf(ptr, ...)
 
@@ -57,6 +57,6 @@ declare void @exit(i32)
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()
 
-declare { ptr, i32 } @"github.com/goplus/llgo/x/sqlite.OpenV2"(ptr, i32, ptr)
+declare { ptr, i32 } @"github.com/goplus/llgo/c/sqlite.OpenV2"(ptr, i32, ptr)
 
-declare i32 @sqlite3_close()
+declare i32 @sqlite3_close(ptr)

cl/_testpy/callpy/in.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/math"
+	"github.com/goplus/llgo/py/os"
+)
+
+func main() {
+	x := math.Sqrt(py.Float(2))
+	wd := os.Getcwd()
+	c.Printf(c.Str("sqrt(2) = %f\n"), x.Float64())
+	c.Printf(c.Str("cwd = %s\n"), wd.CStr())
+}

cl/_testpy/callpy/out.ll

@@ -0,0 +1,74 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@__llgo_py.math.sqrt = linkonce global ptr null
+@__llgo_py.os.getcwd = linkonce global ptr null
+@0 = private unnamed_addr constant [14 x i8] c"sqrt(2) = %f\0A\00", align 1
+@1 = private unnamed_addr constant [10 x i8] c"cwd = %s\0A\00", align 1
+@__llgo_py.math = external global ptr
+@2 = private unnamed_addr constant [5 x i8] c"sqrt\00", align 1
+@__llgo_py.os = external global ptr
+@3 = private unnamed_addr constant [7 x i8] c"getcwd\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/py/math.init"()
+  call void @"github.com/goplus/llgo/py/os.init"()
+  %1 = load ptr, ptr @__llgo_py.math, align 8
+  call void (ptr, ...) @llgoLoadPyModSyms(ptr %1, ptr @2, ptr @__llgo_py.math.sqrt, ptr null)
+  %2 = load ptr, ptr @__llgo_py.os, align 8
+  call void (ptr, ...) @llgoLoadPyModSyms(ptr %2, ptr @3, ptr @__llgo_py.os.getcwd, ptr null)
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  call void @Py_Initialize()
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = call ptr @PyFloat_FromDouble(double 2.000000e+00)
+  %3 = load ptr, ptr @__llgo_py.math.sqrt, align 8
+  %4 = call ptr @PyObject_CallOneArg(ptr %3, ptr %2)
+  %5 = load ptr, ptr @__llgo_py.os.getcwd, align 8
+  %6 = call ptr @PyObject_CallNoArgs(ptr %5)
+  %7 = call double @PyFloat_AsDouble(ptr %4)
+  %8 = call i32 (ptr, ...) @printf(ptr @0, double %7)
+  %9 = call ptr @PyUnicode_AsUTF8(ptr %6)
+  %10 = call i32 (ptr, ...) @printf(ptr @1, ptr %9)
+  ret i32 0
+}
+
+declare void @"github.com/goplus/llgo/py/math.init"()
+
+declare void @"github.com/goplus/llgo/py/os.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @PyFloat_FromDouble(double)
+
+declare ptr @PyObject_CallOneArg(ptr, ptr)
+
+declare ptr @PyObject_CallNoArgs(ptr)
+
+declare double @PyFloat_AsDouble(ptr)
+
+declare i32 @printf(ptr, ...)
+
+declare ptr @PyUnicode_AsUTF8(ptr)
+
+declare void @llgoLoadPyModSyms(ptr, ...)
+
+declare void @Py_Initialize()

cl/_testpy/gcd/in.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/math"
+)
+
+func main() {
+	x := math.Gcd(py.Long(60), py.Long(20), py.Long(25))
+	c.Printf(c.Str("gcd(60, 20, 25) = %d\n"), x.Long())
+}

cl/_testpy/gcd/out.ll

@@ -0,0 +1,59 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@__llgo_py.math.gcd = linkonce global ptr null
+@0 = private unnamed_addr constant [22 x i8] c"gcd(60, 20, 25) = %d\0A\00", align 1
+@__llgo_py.math = external global ptr
+@1 = private unnamed_addr constant [4 x i8] c"gcd\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/py/math.init"()
+  %1 = load ptr, ptr @__llgo_py.math, align 8
+  call void (ptr, ...) @llgoLoadPyModSyms(ptr %1, ptr @1, ptr @__llgo_py.math.gcd, ptr null)
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  call void @Py_Initialize()
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = call ptr @PyLong_FromLong(i32 60)
+  %3 = call ptr @PyLong_FromLong(i32 20)
+  %4 = call ptr @PyLong_FromLong(i32 25)
+  %5 = load ptr, ptr @__llgo_py.math.gcd, align 8
+  %6 = call ptr (ptr, ...) @PyObject_CallFunctionObjArgs(ptr %5, ptr %2, ptr %3, ptr %4, ptr null)
+  %7 = call i32 @PyLong_AsLong(ptr %6)
+  %8 = call i32 (ptr, ...) @printf(ptr @0, i32 %7)
+  ret i32 0
+}
+
+declare void @"github.com/goplus/llgo/py/math.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @PyLong_FromLong(i32)
+
+declare ptr @PyObject_CallFunctionObjArgs(ptr, ...)
+
+declare i32 @PyLong_AsLong(ptr)
+
+declare i32 @printf(ptr, ...)
+
+declare void @llgoLoadPyModSyms(ptr, ...)
+
+declare void @Py_Initialize()

cl/_testpy/math/in.go

@@ -0,0 +1,14 @@
+package math
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/py"
+)
+
+const (
+	LLGoPackage = "py.math"
+)
+
+//go:linkname Sqrt py.sqrt
+func Sqrt(x *py.Object) *py.Object

cl/_testpy/math/out.ll

@@ -0,0 +1,28 @@
+; ModuleID = 'math'
+source_filename = "math"
+
+@"math.init$guard" = global ptr null
+@__llgo_py.math = linkonce global ptr null
+@0 = private unnamed_addr constant [5 x i8] c"math\00", align 1
+
+define void @math.init() {
+_llgo_0:
+  %0 = load i1, ptr @"math.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"math.init$guard", align 1
+  %1 = load ptr, ptr @__llgo_py.math, align 8
+  %2 = icmp ne ptr %1, null
+  br i1 %2, label %_llgo_2, label %_llgo_3
+
+_llgo_2:                                          ; preds = %_llgo_3, %_llgo_1, %_llgo_0
+  ret void
+
+_llgo_3:                                          ; preds = %_llgo_1
+  %3 = call ptr @PyImport_ImportModule(ptr @0)
+  store ptr %3, ptr @__llgo_py.math, align 8
+  br label %_llgo_2
+}
+
+declare ptr @PyImport_ImportModule(ptr)

cl/_testpy/matrix/in.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/numpy"
+)
+
+func main() {
+	a := py.List(
+		py.List(1.0, 2.0, 3.0),
+		py.List(4.0, 5.0, 6.0),
+		py.List(7.0, 8.0, 9.0),
+	)
+	b := py.List(
+		py.List(9.0, 8.0, 7.0),
+		py.List(6.0, 5.0, 4.0),
+		py.List(3.0, 2.0, 1.0),
+	)
+	x := numpy.Add(a, b)
+	c.Printf(c.Str("a = %s\n"), a.Str().CStr())
+	c.Printf(c.Str("a = %s\n"), b.Str().CStr())
+	c.Printf(c.Str("a+b = %s\n"), x.Str().CStr())
+}

cl/_testpy/matrix/out.ll

@@ -0,0 +1,121 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@__llgo_py.numpy.add = linkonce global ptr null
+@0 = private unnamed_addr constant [8 x i8] c"a = %s\0A\00", align 1
+@1 = private unnamed_addr constant [8 x i8] c"a = %s\0A\00", align 1
+@2 = private unnamed_addr constant [10 x i8] c"a+b = %s\0A\00", align 1
+@__llgo_py.numpy = external global ptr
+@3 = private unnamed_addr constant [4 x i8] c"add\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/py/numpy.init"()
+  %1 = load ptr, ptr @__llgo_py.numpy, align 8
+  call void (ptr, ...) @llgoLoadPyModSyms(ptr %1, ptr @3, ptr @__llgo_py.numpy.add, ptr null)
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  call void @Py_Initialize()
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = call ptr @PyList_New(i64 3)
+  %3 = call ptr @PyFloat_FromDouble(double 1.000000e+00)
+  %4 = call i32 @PyList_SetItem(ptr %2, i64 0, ptr %3)
+  %5 = call ptr @PyFloat_FromDouble(double 2.000000e+00)
+  %6 = call i32 @PyList_SetItem(ptr %2, i64 1, ptr %5)
+  %7 = call ptr @PyFloat_FromDouble(double 3.000000e+00)
+  %8 = call i32 @PyList_SetItem(ptr %2, i64 2, ptr %7)
+  %9 = call ptr @PyList_New(i64 3)
+  %10 = call ptr @PyFloat_FromDouble(double 4.000000e+00)
+  %11 = call i32 @PyList_SetItem(ptr %9, i64 0, ptr %10)
+  %12 = call ptr @PyFloat_FromDouble(double 5.000000e+00)
+  %13 = call i32 @PyList_SetItem(ptr %9, i64 1, ptr %12)
+  %14 = call ptr @PyFloat_FromDouble(double 6.000000e+00)
+  %15 = call i32 @PyList_SetItem(ptr %9, i64 2, ptr %14)
+  %16 = call ptr @PyList_New(i64 3)
+  %17 = call ptr @PyFloat_FromDouble(double 7.000000e+00)
+  %18 = call i32 @PyList_SetItem(ptr %16, i64 0, ptr %17)
+  %19 = call ptr @PyFloat_FromDouble(double 8.000000e+00)
+  %20 = call i32 @PyList_SetItem(ptr %16, i64 1, ptr %19)
+  %21 = call ptr @PyFloat_FromDouble(double 9.000000e+00)
+  %22 = call i32 @PyList_SetItem(ptr %16, i64 2, ptr %21)
+  %23 = call ptr @PyList_New(i64 3)
+  %24 = call i32 @PyList_SetItem(ptr %23, i64 0, ptr %2)
+  %25 = call i32 @PyList_SetItem(ptr %23, i64 1, ptr %9)
+  %26 = call i32 @PyList_SetItem(ptr %23, i64 2, ptr %16)
+  %27 = call ptr @PyList_New(i64 3)
+  %28 = call ptr @PyFloat_FromDouble(double 9.000000e+00)
+  %29 = call i32 @PyList_SetItem(ptr %27, i64 0, ptr %28)
+  %30 = call ptr @PyFloat_FromDouble(double 8.000000e+00)
+  %31 = call i32 @PyList_SetItem(ptr %27, i64 1, ptr %30)
+  %32 = call ptr @PyFloat_FromDouble(double 7.000000e+00)
+  %33 = call i32 @PyList_SetItem(ptr %27, i64 2, ptr %32)
+  %34 = call ptr @PyList_New(i64 3)
+  %35 = call ptr @PyFloat_FromDouble(double 6.000000e+00)
+  %36 = call i32 @PyList_SetItem(ptr %34, i64 0, ptr %35)
+  %37 = call ptr @PyFloat_FromDouble(double 5.000000e+00)
+  %38 = call i32 @PyList_SetItem(ptr %34, i64 1, ptr %37)
+  %39 = call ptr @PyFloat_FromDouble(double 4.000000e+00)
+  %40 = call i32 @PyList_SetItem(ptr %34, i64 2, ptr %39)
+  %41 = call ptr @PyList_New(i64 3)
+  %42 = call ptr @PyFloat_FromDouble(double 3.000000e+00)
+  %43 = call i32 @PyList_SetItem(ptr %41, i64 0, ptr %42)
+  %44 = call ptr @PyFloat_FromDouble(double 2.000000e+00)
+  %45 = call i32 @PyList_SetItem(ptr %41, i64 1, ptr %44)
+  %46 = call ptr @PyFloat_FromDouble(double 1.000000e+00)
+  %47 = call i32 @PyList_SetItem(ptr %41, i64 2, ptr %46)
+  %48 = call ptr @PyList_New(i64 3)
+  %49 = call i32 @PyList_SetItem(ptr %48, i64 0, ptr %27)
+  %50 = call i32 @PyList_SetItem(ptr %48, i64 1, ptr %34)
+  %51 = call i32 @PyList_SetItem(ptr %48, i64 2, ptr %41)
+  %52 = load ptr, ptr @__llgo_py.numpy.add, align 8
+  %53 = call ptr (ptr, ...) @PyObject_CallFunctionObjArgs(ptr %52, ptr %23, ptr %48, ptr null)
+  %54 = call ptr @PyObject_Str(ptr %23)
+  %55 = call ptr @PyUnicode_AsUTF8(ptr %54)
+  %56 = call i32 (ptr, ...) @printf(ptr @0, ptr %55)
+  %57 = call ptr @PyObject_Str(ptr %48)
+  %58 = call ptr @PyUnicode_AsUTF8(ptr %57)
+  %59 = call i32 (ptr, ...) @printf(ptr @1, ptr %58)
+  %60 = call ptr @PyObject_Str(ptr %53)
+  %61 = call ptr @PyUnicode_AsUTF8(ptr %60)
+  %62 = call i32 (ptr, ...) @printf(ptr @2, ptr %61)
+  ret i32 0
+}
+
+declare void @"github.com/goplus/llgo/py/numpy.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @PyList_New(i64)
+
+declare ptr @PyFloat_FromDouble(double)
+
+declare i32 @PyList_SetItem(ptr, i64, ptr)
+
+declare ptr @PyObject_CallFunctionObjArgs(ptr, ...)
+
+declare ptr @PyObject_Str(ptr)
+
+declare ptr @PyUnicode_AsUTF8(ptr)
+
+declare i32 @printf(ptr, ...)
+
+declare void @llgoLoadPyModSyms(ptr, ...)
+
+declare void @Py_Initialize()

cl/_testpy/max/in.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/std"
+)
+
+func main() {
+	x := std.Max(py.Float(3.0), py.Float(9.0), py.Float(23.0), py.Float(100.0))
+	std.Print(x)
+
+	list := py.List(3.0, 9.0, 23.0, 100.0)
+	y := std.Max(std.Iter(list))
+	std.Print(y)
+}

cl/_testpy/max/out.ll

@@ -0,0 +1,80 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@__llgo_py.builtins.max = linkonce global ptr null
+@__llgo_py.builtins.print = linkonce global ptr null
+@__llgo_py.builtins.iter = linkonce global ptr null
+@__llgo_py.builtins = external global ptr
+@0 = private unnamed_addr constant [5 x i8] c"iter\00", align 1
+@1 = private unnamed_addr constant [4 x i8] c"max\00", align 1
+@2 = private unnamed_addr constant [6 x i8] c"print\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/py/std.init"()
+  %1 = load ptr, ptr @__llgo_py.builtins, align 8
+  call void (ptr, ...) @llgoLoadPyModSyms(ptr %1, ptr @0, ptr @__llgo_py.builtins.iter, ptr @1, ptr @__llgo_py.builtins.max, ptr @2, ptr @__llgo_py.builtins.print, ptr null)
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  call void @Py_Initialize()
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = call ptr @PyFloat_FromDouble(double 3.000000e+00)
+  %3 = call ptr @PyFloat_FromDouble(double 9.000000e+00)
+  %4 = call ptr @PyFloat_FromDouble(double 2.300000e+01)
+  %5 = call ptr @PyFloat_FromDouble(double 1.000000e+02)
+  %6 = load ptr, ptr @__llgo_py.builtins.max, align 8
+  %7 = call ptr (ptr, ...) @PyObject_CallFunctionObjArgs(ptr %6, ptr %2, ptr %3, ptr %4, ptr %5, ptr null)
+  %8 = load ptr, ptr @__llgo_py.builtins.print, align 8
+  %9 = call ptr (ptr, ...) @PyObject_CallFunctionObjArgs(ptr %8, ptr %7, ptr null)
+  %10 = call ptr @PyList_New(i64 4)
+  %11 = call ptr @PyFloat_FromDouble(double 3.000000e+00)
+  %12 = call i32 @PyList_SetItem(ptr %10, i64 0, ptr %11)
+  %13 = call ptr @PyFloat_FromDouble(double 9.000000e+00)
+  %14 = call i32 @PyList_SetItem(ptr %10, i64 1, ptr %13)
+  %15 = call ptr @PyFloat_FromDouble(double 2.300000e+01)
+  %16 = call i32 @PyList_SetItem(ptr %10, i64 2, ptr %15)
+  %17 = call ptr @PyFloat_FromDouble(double 1.000000e+02)
+  %18 = call i32 @PyList_SetItem(ptr %10, i64 3, ptr %17)
+  %19 = load ptr, ptr @__llgo_py.builtins.iter, align 8
+  %20 = call ptr @PyObject_CallOneArg(ptr %19, ptr %10)
+  %21 = load ptr, ptr @__llgo_py.builtins.max, align 8
+  %22 = call ptr (ptr, ...) @PyObject_CallFunctionObjArgs(ptr %21, ptr %20, ptr null)
+  %23 = load ptr, ptr @__llgo_py.builtins.print, align 8
+  %24 = call ptr (ptr, ...) @PyObject_CallFunctionObjArgs(ptr %23, ptr %22, ptr null)
+  ret i32 0
+}
+
+declare void @"github.com/goplus/llgo/py/std.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @PyFloat_FromDouble(double)
+
+declare ptr @PyObject_CallFunctionObjArgs(ptr, ...)
+
+declare ptr @PyList_New(i64)
+
+declare i32 @PyList_SetItem(ptr, i64, ptr)
+
+declare ptr @PyObject_CallOneArg(ptr, ptr)
+
+declare void @llgoLoadPyModSyms(ptr, ...)
+
+declare void @Py_Initialize()

cl/_testpy/pi/in.go

@@ -0,0 +1,10 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py/math"
+)
+
+func main() {
+	c.Printf(c.Str("pi = %f\n"), math.Pi.Float64())
+}

cl/_testpy/pi/out.ll

@@ -0,0 +1,49 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@0 = private unnamed_addr constant [9 x i8] c"pi = %f\0A\00", align 1
+@__llgo_py.math = external global ptr
+@1 = private unnamed_addr constant [3 x i8] c"pi\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/py/math.init"()
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  call void @Py_Initialize()
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = load ptr, ptr @__llgo_py.math, align 8
+  %3 = call ptr @PyObject_GetAttrString(ptr %2, ptr @1)
+  %4 = call double @PyFloat_AsDouble(ptr %3)
+  %5 = call i32 (ptr, ...) @printf(ptr @0, double %4)
+  ret i32 0
+}
+
+declare void @"github.com/goplus/llgo/py/math.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @PyObject_GetAttrString(ptr, ptr)
+
+declare double @PyFloat_AsDouble(ptr)
+
+declare i32 @printf(ptr, ...)
+
+declare void @Py_Initialize()

cl/_testpy/pow/in.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+	"github.com/goplus/llgo/py/math"
+)
+
+func main() {
+	x := math.Pow(py.Float(2), py.Float(3))
+	c.Printf(c.Str("pow(2, 3) = %f\n"), x.Float64())
+}

cl/_testpy/pow/out.ll

@@ -0,0 +1,58 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@__llgo_py.math.pow = linkonce global ptr null
+@0 = private unnamed_addr constant [16 x i8] c"pow(2, 3) = %f\0A\00", align 1
+@__llgo_py.math = external global ptr
+@1 = private unnamed_addr constant [4 x i8] c"pow\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/py/math.init"()
+  %1 = load ptr, ptr @__llgo_py.math, align 8
+  call void (ptr, ...) @llgoLoadPyModSyms(ptr %1, ptr @1, ptr @__llgo_py.math.pow, ptr null)
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  call void @Py_Initialize()
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = call ptr @PyFloat_FromDouble(double 2.000000e+00)
+  %3 = call ptr @PyFloat_FromDouble(double 3.000000e+00)
+  %4 = load ptr, ptr @__llgo_py.math.pow, align 8
+  %5 = call ptr (ptr, ...) @PyObject_CallFunctionObjArgs(ptr %4, ptr %2, ptr %3, ptr null)
+  %6 = call double @PyFloat_AsDouble(ptr %5)
+  %7 = call i32 (ptr, ...) @printf(ptr @0, double %6)
+  ret i32 0
+}
+
+declare void @"github.com/goplus/llgo/py/math.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @PyFloat_FromDouble(double)
+
+declare ptr @PyObject_CallFunctionObjArgs(ptr, ...)
+
+declare double @PyFloat_AsDouble(ptr)
+
+declare i32 @printf(ptr, ...)
+
+declare void @llgoLoadPyModSyms(ptr, ...)
+
+declare void @Py_Initialize()

cl/_testrt/_gotypes/out.ll

@@ -25,14 +25,14 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
   call void @main.foo(%"github.com/goplus/llgo/internal/runtime.iface" zeroinitializer)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/alloca/out.ll

@@ -20,7 +20,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -29,7 +29,7 @@ _llgo_0:
   %2 = alloca i8, i64 4, align 1
   %3 = call ptr @memcpy(ptr %2, ptr @0, i64 4)
   %4 = call i32 (ptr, ...) @printf(ptr @1, ptr %2)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/allocstr/out.ll

@@ -10,8 +10,13 @@ source_filename = "main"
 
 define %"github.com/goplus/llgo/internal/runtime.String" @main.hello() {
 _llgo_0:
-  %0 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @0, i64 12)
-  ret %"github.com/goplus/llgo/internal/runtime.String" %0
+  %0 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i32 0, i32 0
+  store ptr @0, ptr %1, align 8
+  %2 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i32 0, i32 1
+  store i64 12, ptr %2, align 4
+  %3 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %0, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.String" %3
 }
 
 define void @main.init() {
@@ -27,27 +32,23 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
   %2 = call %"github.com/goplus/llgo/internal/runtime.String" @main.hello()
-  %3 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %2)
+  %3 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %2, 1
   %4 = add i64 %3, 1
   %5 = alloca i8, i64 %4, align 1
   %6 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %5, %"github.com/goplus/llgo/internal/runtime.String" %2)
   %7 = call i32 (ptr, ...) @printf(ptr %6)
-  ret void
+  ret i32 0
 }
 
-declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr, i64)
-
 declare void @"github.com/goplus/llgo/internal/runtime.init"()
 
-declare i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String")
-
 declare ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr, %"github.com/goplus/llgo/internal/runtime.String")
 
 declare i32 @printf(ptr, ...)

cl/_testrt/any/in.go

@@ -4,10 +4,14 @@ import (
 	"github.com/goplus/llgo/internal/runtime/c"
 )
 
+func hi(a any) *c.Char {
+	return a.(*c.Char)
+}
+
 func incVal(a any) int {
 	return a.(int) + 1
 }
 
 func main() {
-	c.Printf(c.Str("Hello %d\n"), incVal(100))
+	c.Printf(c.Str("%s %d\n"), hi(c.Str("Hello")), incVal(100))
 }

cl/_testrt/any/out.ll

@@ -1,19 +1,64 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-%"github.com/goplus/llgo/internal/runtime.iface" = type { ptr, ptr }
+%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
 
 @"main.init$guard" = global ptr null
+@"*_llgo_int8" = linkonce global ptr null
+@_llgo_int8 = linkonce global ptr null
+@0 = private unnamed_addr constant [22 x i8] c"type assertion failed\00", align 1
+@_llgo_int = linkonce global ptr null
+@1 = private unnamed_addr constant [22 x i8] c"type assertion failed\00", align 1
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
-@0 = private unnamed_addr constant [10 x i8] c"Hello %d\0A\00", align 1
+@2 = private unnamed_addr constant [7 x i8] c"%s %d\0A\00", align 1
+@3 = private unnamed_addr constant [6 x i8] c"Hello\00", align 1
 
-define i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.iface" %0) {
+define ptr @main.hi(%"github.com/goplus/llgo/internal/runtime.eface" %0) {
 _llgo_0:
-  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %2 = call i64 @"github.com/goplus/llgo/internal/runtime.I2Int"(%"github.com/goplus/llgo/internal/runtime.iface" %0, ptr %1)
-  %3 = add i64 %2, 1
-  ret i64 %3
+  %1 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 0
+  %2 = load ptr, ptr @"*_llgo_int8", align 8
+  %3 = icmp eq ptr %1, %2
+  br i1 %3, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %4 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 1
+  ret ptr %4
+
+_llgo_2:                                          ; preds = %_llgo_0
+  %5 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %5, i32 0, i32 0
+  store ptr @0, ptr %6, align 8
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %5, i32 0, i32 1
+  store i64 21, ptr %7, align 4
+  %8 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %5, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.String" %8)
+  unreachable
+}
+
+define i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.eface" %0) {
+_llgo_0:
+  %1 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 0
+  %2 = load ptr, ptr @_llgo_int, align 8
+  %3 = icmp eq ptr %1, %2
+  br i1 %3, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %4 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 1
+  %5 = ptrtoint ptr %4 to i64
+  %6 = add i64 %5, 1
+  ret i64 %6
+
+_llgo_2:                                          ; preds = %_llgo_0
+  %7 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %7, i32 0, i32 0
+  store ptr @1, ptr %8, align 8
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %7, i32 0, i32 1
+  store i64 21, ptr %9, align 4
+  %10 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %7, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.String" %10)
+  unreachable
 }
 
 define void @main.init() {
@@ -23,31 +68,81 @@ _llgo_0:
 
 _llgo_1:                                          ; preds = %_llgo_0
   store i1 true, ptr @"main.init$guard", align 1
+  call void @"main.init$abi"()
   br label %_llgo_2
 
 _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
-  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %3 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %2, i64 100)
-  %4 = call i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.iface" %3)
-  %5 = call i32 (ptr, ...) @printf(ptr @0, i64 %4)
+  %2 = load ptr, ptr @"*_llgo_int8", align 8
+  %3 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %3, i32 0, i32 0
+  store ptr %2, ptr %4, align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %3, i32 0, i32 1
+  store ptr @3, ptr %5, align 8
+  %6 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %3, align 8
+  %7 = call ptr @main.hi(%"github.com/goplus/llgo/internal/runtime.eface" %6)
+  %8 = load ptr, ptr @_llgo_int, align 8
+  %9 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %9, i32 0, i32 0
+  store ptr %8, ptr %10, align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %9, i32 0, i32 1
+  store ptr inttoptr (i64 100 to ptr), ptr %11, align 8
+  %12 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %9, align 8
+  %13 = call i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.eface" %12)
+  %14 = call i32 (ptr, ...) @printf(ptr @2, ptr %7, i64 %13)
+  ret i32 0
+}
+
+define void @"main.init$abi"() {
+_llgo_0:
+  %0 = load ptr, ptr @_llgo_int8, align 8
+  %1 = icmp eq ptr %0, null
+  br i1 %1, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 3)
+  store ptr %2, ptr @_llgo_int8, align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  %3 = load ptr, ptr @_llgo_int8, align 8
+  %4 = load ptr, ptr @"*_llgo_int8", align 8
+  %5 = icmp eq ptr %4, null
+  br i1 %5, label %_llgo_3, label %_llgo_4
+
+_llgo_3:                                          ; preds = %_llgo_2
+  %6 = call ptr @"github.com/goplus/llgo/internal/runtime.PointerTo"(ptr %3)
+  store ptr %6, ptr @"*_llgo_int8", align 8
+  br label %_llgo_4
+
+_llgo_4:                                          ; preds = %_llgo_3, %_llgo_2
+  %7 = load ptr, ptr @_llgo_int, align 8
+  %8 = icmp eq ptr %7, null
+  br i1 %8, label %_llgo_5, label %_llgo_6
+
+_llgo_5:                                          ; preds = %_llgo_4
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
+  store ptr %9, ptr @_llgo_int, align 8
+  br label %_llgo_6
+
+_llgo_6:                                          ; preds = %_llgo_5, %_llgo_4
   ret void
 }
 
-declare i64 @"github.com/goplus/llgo/internal/runtime.I2Int"(%"github.com/goplus/llgo/internal/runtime.iface", ptr)
-
 declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
 
+declare ptr @"github.com/goplus/llgo/internal/runtime.PointerTo"(ptr)
+
+declare void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface")
+
 declare void @"github.com/goplus/llgo/internal/runtime.init"()
 
-declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr, i64)
-
 declare i32 @printf(ptr, ...)

cl/_testrt/builtin/in.go

@@ -1,7 +1,7 @@
 package main
 
 import (
-	"github.com/goplus/llgo/internal/runtime/c"
+	"unsafe"
 )
 
 var a int64 = 1<<63 - 1
@@ -11,41 +11,82 @@ var n uint64 = 1<<64 - 1
 func main() {
 	var s = []int{1, 2, 3, 4}
 	var a = [...]int{1, 2, 3, 4}
+	d := make([]byte, 4, 10)
+	println(s, len(s), cap(s))
+	println(d, len(d), cap(d))
+	println(len(a), cap(a), cap(&a), len(&a))
+	println(len([]int{1, 2, 3, 4}), len([4]int{1, 2, 3, 4}))
+	println(len(s[1:]), cap(s[1:]), len(s[1:2]), cap(s[1:2]), len(s[1:2:2]), cap(s[1:2:2]))
+	println(len(a[1:]), cap(a[1:]), len(a[1:2]), cap(a[1:2]), len(a[1:2:2]), cap(a[1:2:2]))
 
-	out(len(s))
-	out(len([]int{1, 2, 3, 4}))
-	out(len(a))
-	out(len(&a))
-	out(len([4]int{1, 2, 3, 4}))
+	println("hello", "hello"[1:], "hello"[1:2], len("hello"[5:]))
+	println(append(s, 5, 6, 7, 8))
+	data := []byte{'a', 'b', 'c'}
+	data = append(data, "def"...)
+	println(data)
+	var i any = 100
+	println(true, 0, 100, -100, uint(255), int32(-100), 0.0, 100.5, i, &i, uintptr(unsafe.Pointer(&i)))
+	var dst [3]byte
+	n := copy(dst[:], data)
+	println(n, dst[0], dst[1], dst[2])
+	n = copy(dst[1:], "ABCD")
+	println(n, dst[0], dst[1], dst[2])
 
-	out(cap(s))
-	out(cap(a))
-	out(cap(&a))
+	fn1 := demo
+	fn2 := func() {
+		println("fn")
+	}
+	fn3 := func() {
+		println(n)
+	}
+	println(demo, fn1, fn2, fn3)
 
-	out(len(s[1:]))
-	out(cap(s[1:]))
-	out(len(s[1:2]))
-	out(cap(s[1:2]))
-	out(len(s[1:2:2]))
-	out(cap(s[1:2:2]))
+	for i, v := range "中abcd" {
+		println(i, v)
+	}
 
-	out(len(a[1:]))
-	out(cap(a[1:]))
-	out(len(a[1:2]))
-	out(cap(a[1:2]))
-	out(len(a[1:2:2]))
-	out(cap(a[1:2:2]))
+	println(Inf(1), Inf(-1), NaN(), IsNaN(NaN()), IsNaN(1.0))
 
-	string_len("hello")
-	string_len("hello"[1:])
-	string_len("hello"[1:2])
-	string_len("hello"[5:])
+	data1 := []byte("中abcd")
+	data2 := []rune("中abcd")
+	println(data1, data2)
+	println(string(data1), string(data2), string(data1[3]), string(data2[0]))
+	s1 := "abc"
+	s2 := "abd"
+	println(s1 == "abc", s1 == s2, s1 != s2, s1 < s2, s1 <= s2, s1 > s2, s1 >= s2)
 }
 
-func string_len(s string) {
-	out(len(s))
+func demo() {
 }
 
-func out(n int) {
-	c.Printf(c.Str("%d\n"), n)
+const (
+	uvnan    = 0x7FF8000000000001
+	uvinf    = 0x7FF0000000000000
+	uvneginf = 0xFFF0000000000000
+	uvone    = 0x3FF0000000000000
+	mask     = 0x7FF
+	shift    = 64 - 11 - 1
+	bias     = 1023
+	signMask = 1 << 63
+	fracMask = 1<<shift - 1
+)
+
+// Inf returns positive infinity if sign >= 0, negative infinity if sign < 0.
+func Inf(sign int) float64 {
+	var v uint64
+	if sign >= 0 {
+		v = uvinf
+	} else {
+		v = uvneginf
+	}
+	return Float64frombits(v)
 }
+
+// NaN returns an IEEE 754 “not-a-number” value.
+func NaN() float64 { return Float64frombits(uvnan) }
+
+func IsNaN(f float64) (is bool) {
+	return f != f
+}
+
+func Float64frombits(b uint64) float64 { return *(*float64)(unsafe.Pointer(&b)) }

cl/_testrt/builtin/out.ll

@@ -3,6 +3,7 @@ source_filename = "main"
 
 %"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
 %"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
 
 @main.a = global ptr null
 @main.b = global ptr null
@@ -14,7 +15,69 @@ source_filename = "main"
 @1 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
 @2 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
 @3 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
-@4 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@4 = private unnamed_addr constant [4 x i8] c"def\00", align 1
+@_llgo_int = linkonce global ptr null
+@5 = private unnamed_addr constant [5 x i8] c"ABCD\00", align 1
+@6 = private unnamed_addr constant [8 x i8] c"\E4\B8\ADabcd\00", align 1
+@7 = private unnamed_addr constant [8 x i8] c"\E4\B8\ADabcd\00", align 1
+@8 = private unnamed_addr constant [8 x i8] c"\E4\B8\ADabcd\00", align 1
+@9 = private unnamed_addr constant [4 x i8] c"abc\00", align 1
+@10 = private unnamed_addr constant [4 x i8] c"abc\00", align 1
+@11 = private unnamed_addr constant [4 x i8] c"abc\00", align 1
+@12 = private unnamed_addr constant [4 x i8] c"abd\00", align 1
+@13 = private unnamed_addr constant [4 x i8] c"abc\00", align 1
+@14 = private unnamed_addr constant [4 x i8] c"abd\00", align 1
+@15 = private unnamed_addr constant [4 x i8] c"abc\00", align 1
+@16 = private unnamed_addr constant [4 x i8] c"abd\00", align 1
+@17 = private unnamed_addr constant [4 x i8] c"abc\00", align 1
+@18 = private unnamed_addr constant [4 x i8] c"abd\00", align 1
+@19 = private unnamed_addr constant [4 x i8] c"abc\00", align 1
+@20 = private unnamed_addr constant [4 x i8] c"abd\00", align 1
+@21 = private unnamed_addr constant [4 x i8] c"abc\00", align 1
+@22 = private unnamed_addr constant [4 x i8] c"abd\00", align 1
+@23 = private unnamed_addr constant [3 x i8] c"fn\00", align 1
+
+define double @main.Float64frombits(i64 %0) {
+_llgo_0:
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
+  store i64 %0, ptr %1, align 4
+  %2 = load double, ptr %1, align 8
+  ret double %2
+}
+
+define double @main.Inf(i64 %0) {
+_llgo_0:
+  %1 = icmp sge i64 %0, 0
+  br i1 %1, label %_llgo_1, label %_llgo_3
+
+_llgo_1:                                          ; preds = %_llgo_0
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_3, %_llgo_1
+  %2 = phi i64 [ 9218868437227405312, %_llgo_1 ], [ -4503599627370496, %_llgo_3 ]
+  %3 = call double @main.Float64frombits(i64 %2)
+  ret double %3
+
+_llgo_3:                                          ; preds = %_llgo_0
+  br label %_llgo_2
+}
+
+define i1 @main.IsNaN(double %0) {
+_llgo_0:
+  %1 = fcmp une double %0, %0
+  ret i1 %1
+}
+
+define double @main.NaN() {
+_llgo_0:
+  %0 = call double @main.Float64frombits(i64 9221120237041090561)
+  ret double %0
+}
+
+define void @main.demo() {
+_llgo_0:
+  ret void
+}
 
 define void @main.init() {
 _llgo_0:
@@ -23,6 +86,7 @@ _llgo_0:
 
 _llgo_1:                                          ; preds = %_llgo_0
   store i1 true, ptr @"main.init$guard", align 1
+  call void @"main.init$abi"()
   store i64 9223372036854775807, ptr @main.a, align 4
   store i64 -9223372036854775808, ptr @main.b, align 4
   store i64 -1, ptr @main.n, align 4
@@ -32,7 +96,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -47,132 +111,606 @@ _llgo_0:
   store i64 3, ptr %5, align 4
   %6 = getelementptr inbounds i64, ptr %2, i64 3
   store i64 4, ptr %6, align 4
-  %7 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %2, i64 8, i64 4, i64 0, i64 4, i64 4)
-  %8 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
-  %9 = getelementptr inbounds i64, ptr %8, i64 0
-  %10 = getelementptr inbounds i64, ptr %8, i64 1
-  %11 = getelementptr inbounds i64, ptr %8, i64 2
-  %12 = getelementptr inbounds i64, ptr %8, i64 3
-  store i64 1, ptr %9, align 4
-  store i64 2, ptr %10, align 4
-  store i64 3, ptr %11, align 4
-  store i64 4, ptr %12, align 4
-  %13 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  call void @main.out(i64 %13)
-  %14 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
-  %15 = getelementptr inbounds i64, ptr %14, i64 0
-  store i64 1, ptr %15, align 4
-  %16 = getelementptr inbounds i64, ptr %14, i64 1
-  store i64 2, ptr %16, align 4
-  %17 = getelementptr inbounds i64, ptr %14, i64 2
-  store i64 3, ptr %17, align 4
-  %18 = getelementptr inbounds i64, ptr %14, i64 3
-  store i64 4, ptr %18, align 4
-  %19 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %14, i64 8, i64 4, i64 0, i64 4, i64 4)
-  %20 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %19)
-  call void @main.out(i64 %20)
-  call void @main.out(i64 4)
-  call void @main.out(i64 4)
-  call void @main.out(i64 4)
-  %21 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  call void @main.out(i64 %21)
-  call void @main.out(i64 4)
-  call void @main.out(i64 4)
-  %22 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %23 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %24 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %25 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %24, i64 8, i64 %22, i64 1, i64 %23, i64 %22)
-  %26 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %25)
-  call void @main.out(i64 %26)
-  %27 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %28 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %29 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %30 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %29, i64 8, i64 %27, i64 1, i64 %28, i64 %27)
-  %31 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %30)
-  call void @main.out(i64 %31)
-  %32 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %33 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %34 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %33, i64 8, i64 %32, i64 1, i64 2, i64 %32)
-  %35 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %34)
-  call void @main.out(i64 %35)
-  %36 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %37 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %38 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %37, i64 8, i64 %36, i64 1, i64 2, i64 %36)
-  %39 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %38)
-  call void @main.out(i64 %39)
-  %40 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %41 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %42 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %41, i64 8, i64 %40, i64 1, i64 2, i64 2)
-  %43 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %42)
-  call void @main.out(i64 %43)
-  %44 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %45 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
-  %46 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %45, i64 8, i64 %44, i64 1, i64 2, i64 2)
-  %47 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %46)
-  call void @main.out(i64 %47)
-  %48 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %8, i64 8, i64 4, i64 1, i64 4, i64 4)
-  %49 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %48)
-  call void @main.out(i64 %49)
-  %50 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %8, i64 8, i64 4, i64 1, i64 4, i64 4)
-  %51 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %50)
-  call void @main.out(i64 %51)
-  %52 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %8, i64 8, i64 4, i64 1, i64 2, i64 4)
-  %53 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %52)
-  call void @main.out(i64 %53)
-  %54 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %8, i64 8, i64 4, i64 1, i64 2, i64 4)
-  %55 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %54)
-  call void @main.out(i64 %55)
-  %56 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %8, i64 8, i64 4, i64 1, i64 2, i64 2)
-  %57 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %56)
-  call void @main.out(i64 %57)
-  %58 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %8, i64 8, i64 4, i64 1, i64 2, i64 2)
-  %59 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %58)
-  call void @main.out(i64 %59)
-  %60 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @0, i64 5)
-  call void @main.string_len(%"github.com/goplus/llgo/internal/runtime.String" %60)
-  %61 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @1, i64 5)
-  %62 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %61)
-  %63 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %61, i64 1, i64 %62)
-  call void @main.string_len(%"github.com/goplus/llgo/internal/runtime.String" %63)
-  %64 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @2, i64 5)
-  %65 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %64, i64 1, i64 2)
-  call void @main.string_len(%"github.com/goplus/llgo/internal/runtime.String" %65)
-  %66 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @3, i64 5)
-  %67 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %66)
-  %68 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %66, i64 5, i64 %67)
-  call void @main.string_len(%"github.com/goplus/llgo/internal/runtime.String" %68)
-  ret void
-}
+  %7 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %7, i32 0, i32 0
+  store ptr %2, ptr %8, align 8
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %7, i32 0, i32 1
+  store i64 4, ptr %9, align 4
+  %10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %7, i32 0, i32 2
+  store i64 4, ptr %10, align 4
+  %11 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %7, align 8
+  %12 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %13 = getelementptr inbounds i64, ptr %12, i64 0
+  %14 = getelementptr inbounds i64, ptr %12, i64 1
+  %15 = getelementptr inbounds i64, ptr %12, i64 2
+  %16 = getelementptr inbounds i64, ptr %12, i64 3
+  store i64 1, ptr %13, align 4
+  store i64 2, ptr %14, align 4
+  store i64 3, ptr %15, align 4
+  store i64 4, ptr %16, align 4
+  %17 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 10)
+  %18 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %17, i64 1, i64 10, i64 0, i64 4, i64 10)
+  %19 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 1
+  %20 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 2
+  call void @"github.com/goplus/llgo/internal/runtime.PrintSlice"(%"github.com/goplus/llgo/internal/runtime.Slice" %11)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %19)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %20)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %21 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %18, 1
+  %22 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %18, 2
+  call void @"github.com/goplus/llgo/internal/runtime.PrintSlice"(%"github.com/goplus/llgo/internal/runtime.Slice" %18)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %21)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %22)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 4)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 4)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 4)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 4)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %23 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %24 = getelementptr inbounds i64, ptr %23, i64 0
+  store i64 1, ptr %24, align 4
+  %25 = getelementptr inbounds i64, ptr %23, i64 1
+  store i64 2, ptr %25, align 4
+  %26 = getelementptr inbounds i64, ptr %23, i64 2
+  store i64 3, ptr %26, align 4
+  %27 = getelementptr inbounds i64, ptr %23, i64 3
+  store i64 4, ptr %27, align 4
+  %28 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %29 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %28, i32 0, i32 0
+  store ptr %23, ptr %29, align 8
+  %30 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %28, i32 0, i32 1
+  store i64 4, ptr %30, align 4
+  %31 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %28, i32 0, i32 2
+  store i64 4, ptr %31, align 4
+  %32 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %28, align 8
+  %33 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %32, 1
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %33)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 4)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %34 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 2
+  %35 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 2
+  %36 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 0
+  %37 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %36, i64 8, i64 %34, i64 1, i64 %35, i64 %34)
+  %38 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %37, 1
+  %39 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 2
+  %40 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 2
+  %41 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 0
+  %42 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %41, i64 8, i64 %39, i64 1, i64 %40, i64 %39)
+  %43 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %42, 2
+  %44 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 2
+  %45 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 0
+  %46 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %45, i64 8, i64 %44, i64 1, i64 2, i64 %44)
+  %47 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %46, 1
+  %48 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 2
+  %49 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 0
+  %50 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %49, i64 8, i64 %48, i64 1, i64 2, i64 %48)
+  %51 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %50, 2
+  %52 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 2
+  %53 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 0
+  %54 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %53, i64 8, i64 %52, i64 1, i64 2, i64 2)
+  %55 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %54, 1
+  %56 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 2
+  %57 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %11, 0
+  %58 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %57, i64 8, i64 %56, i64 1, i64 2, i64 2)
+  %59 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %58, 2
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %38)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %43)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %47)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %51)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %55)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %59)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %60 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %12, i64 8, i64 4, i64 1, i64 4, i64 4)
+  %61 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %60, 1
+  %62 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %12, i64 8, i64 4, i64 1, i64 4, i64 4)
+  %63 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %62, 2
+  %64 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %12, i64 8, i64 4, i64 1, i64 2, i64 4)
+  %65 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %64, 1
+  %66 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %12, i64 8, i64 4, i64 1, i64 2, i64 4)
+  %67 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %66, 2
+  %68 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %12, i64 8, i64 4, i64 1, i64 2, i64 2)
+  %69 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %68, 1
+  %70 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %12, i64 8, i64 4, i64 1, i64 2, i64 2)
+  %71 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %70, 2
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %61)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %63)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %65)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %67)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %69)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %71)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %72 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %73 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %72, i32 0, i32 0
+  store ptr @0, ptr %73, align 8
+  %74 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %72, i32 0, i32 1
+  store i64 5, ptr %74, align 4
+  %75 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %72, align 8
+  %76 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %75, 1
+  %77 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %75, i64 1, i64 %76)
+  %78 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %79 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %78, i32 0, i32 0
+  store ptr @1, ptr %79, align 8
+  %80 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %78, i32 0, i32 1
+  store i64 5, ptr %80, align 4
+  %81 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %78, align 8
+  %82 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %81, i64 1, i64 2)
+  %83 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %84 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %83, i32 0, i32 0
+  store ptr @2, ptr %84, align 8
+  %85 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %83, i32 0, i32 1
+  store i64 5, ptr %85, align 4
+  %86 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %83, align 8
+  %87 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %86, 1
+  %88 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %86, i64 5, i64 %87)
+  %89 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %88, 1
+  %90 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %91 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %90, i32 0, i32 0
+  store ptr @3, ptr %91, align 8
+  %92 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %90, i32 0, i32 1
+  store i64 5, ptr %92, align 4
+  %93 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %90, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %93)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %77)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %82)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %89)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %94 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %95 = getelementptr inbounds i64, ptr %94, i64 0
+  store i64 5, ptr %95, align 4
+  %96 = getelementptr inbounds i64, ptr %94, i64 1
+  store i64 6, ptr %96, align 4
+  %97 = getelementptr inbounds i64, ptr %94, i64 2
+  store i64 7, ptr %97, align 4
+  %98 = getelementptr inbounds i64, ptr %94, i64 3
+  store i64 8, ptr %98, align 4
+  %99 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %100 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %99, i32 0, i32 0
+  store ptr %94, ptr %100, align 8
+  %101 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %99, i32 0, i32 1
+  store i64 4, ptr %101, align 4
+  %102 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %99, i32 0, i32 2
+  store i64 4, ptr %102, align 4
+  %103 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %99, align 8
+  %104 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %103, 0
+  %105 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %103, 1
+  %106 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.SliceAppend"(%"github.com/goplus/llgo/internal/runtime.Slice" %11, ptr %104, i64 %105, i64 8)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintSlice"(%"github.com/goplus/llgo/internal/runtime.Slice" %106)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %107 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 3)
+  %108 = getelementptr inbounds i8, ptr %107, i64 0
+  store i8 97, ptr %108, align 1
+  %109 = getelementptr inbounds i8, ptr %107, i64 1
+  store i8 98, ptr %109, align 1
+  %110 = getelementptr inbounds i8, ptr %107, i64 2
+  store i8 99, ptr %110, align 1
+  %111 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %112 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %111, i32 0, i32 0
+  store ptr %107, ptr %112, align 8
+  %113 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %111, i32 0, i32 1
+  store i64 3, ptr %113, align 4
+  %114 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %111, i32 0, i32 2
+  store i64 3, ptr %114, align 4
+  %115 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %111, align 8
+  %116 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %117 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %116, i32 0, i32 0
+  store ptr @4, ptr %117, align 8
+  %118 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %116, i32 0, i32 1
+  store i64 3, ptr %118, align 4
+  %119 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %116, align 8
+  %120 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %119, 0
+  %121 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %119, 1
+  %122 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.SliceAppend"(%"github.com/goplus/llgo/internal/runtime.Slice" %115, ptr %120, i64 %121, i64 1)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintSlice"(%"github.com/goplus/llgo/internal/runtime.Slice" %122)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %123 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 16)
+  %124 = load ptr, ptr @_llgo_int, align 8
+  %125 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %126 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %125, i32 0, i32 0
+  store ptr %124, ptr %126, align 8
+  %127 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %125, i32 0, i32 1
+  store ptr inttoptr (i64 100 to ptr), ptr %127, align 8
+  %128 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %125, align 8
+  store %"github.com/goplus/llgo/internal/runtime.eface" %128, ptr %123, align 8
+  %129 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %123, align 8
+  %130 = ptrtoint ptr %123 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 true)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 0)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 100)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 -100)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 255)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 -100)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double 0.000000e+00)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double 1.005000e+02)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintEface"(%"github.com/goplus/llgo/internal/runtime.eface" %129)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintPointer"(ptr %123)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %130)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %131 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 3)
+  %132 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
+  %133 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %134 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %133, i32 0, i32 0
+  store ptr %131, ptr %134, align 8
+  %135 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %133, i32 0, i32 1
+  store i64 3, ptr %135, align 4
+  %136 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %133, i32 0, i32 2
+  store i64 3, ptr %136, align 4
+  %137 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %133, align 8
+  %138 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %122, 0
+  %139 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %122, 1
+  %140 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCopy"(%"github.com/goplus/llgo/internal/runtime.Slice" %137, ptr %138, i64 %139, i64 1)
+  store i64 %140, ptr %132, align 4
+  %141 = load i64, ptr %132, align 4
+  %142 = getelementptr inbounds i8, ptr %131, i64 0
+  %143 = load i8, ptr %142, align 1
+  %144 = getelementptr inbounds i8, ptr %131, i64 1
+  %145 = load i8, ptr %144, align 1
+  %146 = getelementptr inbounds i8, ptr %131, i64 2
+  %147 = load i8, ptr %146, align 1
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %141)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %148 = zext i8 %143 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %148)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %149 = zext i8 %145 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %149)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %150 = zext i8 %147 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %150)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %151 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %131, i64 1, i64 3, i64 1, i64 3, i64 3)
+  %152 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %153 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %152, i32 0, i32 0
+  store ptr @5, ptr %153, align 8
+  %154 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %152, i32 0, i32 1
+  store i64 4, ptr %154, align 4
+  %155 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %152, align 8
+  %156 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %155, 0
+  %157 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %155, 1
+  %158 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCopy"(%"github.com/goplus/llgo/internal/runtime.Slice" %151, ptr %156, i64 %157, i64 1)
+  store i64 %158, ptr %132, align 4
+  %159 = load i64, ptr %132, align 4
+  %160 = getelementptr inbounds i8, ptr %131, i64 0
+  %161 = load i8, ptr %160, align 1
+  %162 = getelementptr inbounds i8, ptr %131, i64 1
+  %163 = load i8, ptr %162, align 1
+  %164 = getelementptr inbounds i8, ptr %131, i64 2
+  %165 = load i8, ptr %164, align 1
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %159)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %166 = zext i8 %161 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %166)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %167 = zext i8 %163 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %167)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %168 = zext i8 %165 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64 %168)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %169 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
+  %170 = getelementptr inbounds { ptr }, ptr %169, i32 0, i32 0
+  store ptr %132, ptr %170, align 8
+  %171 = alloca { ptr, ptr }, align 8
+  %172 = getelementptr inbounds { ptr, ptr }, ptr %171, i32 0, i32 0
+  store ptr @"main.main$2", ptr %172, align 8
+  %173 = getelementptr inbounds { ptr, ptr }, ptr %171, i32 0, i32 1
+  store ptr %169, ptr %173, align 8
+  %174 = load { ptr, ptr }, ptr %171, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.PrintPointer"(ptr @main.demo)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintPointer"(ptr @main.demo)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintPointer"(ptr @"main.main$1")
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %175 = extractvalue { ptr, ptr } %174, 0
+  call void @"github.com/goplus/llgo/internal/runtime.PrintPointer"(ptr %175)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %176 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %177 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %176, i32 0, i32 0
+  store ptr @6, ptr %177, align 8
+  %178 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %176, i32 0, i32 1
+  store i64 7, ptr %178, align 4
+  %179 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %176, align 8
+  %180 = call ptr @"github.com/goplus/llgo/internal/runtime.NewStringIter"(%"github.com/goplus/llgo/internal/runtime.String" %179)
+  br label %_llgo_1
 
-define void @main.out(i64 %0) {
-_llgo_0:
-  %1 = call i32 (ptr, ...) @printf(ptr @4, i64 %0)
-  ret void
-}
+_llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
+  %181 = call { i1, i64, i32 } @"github.com/goplus/llgo/internal/runtime.StringIterNext"(ptr %180)
+  %182 = extractvalue { i1, i64, i32 } %181, 0
+  br i1 %182, label %_llgo_2, label %_llgo_3
 
-define void @main.string_len(%"github.com/goplus/llgo/internal/runtime.String" %0) {
-_llgo_0:
-  %1 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %0)
-  call void @main.out(i64 %1)
-  ret void
-}
+_llgo_2:                                          ; preds = %_llgo_1
+  %183 = extractvalue { i1, i64, i32 } %181, 1
+  %184 = extractvalue { i1, i64, i32 } %181, 2
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %183)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %185 = sext i32 %184 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %185)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  br label %_llgo_1
 
-declare void @"github.com/goplus/llgo/internal/runtime.init"()
+_llgo_3:                                          ; preds = %_llgo_1
+  %186 = call double @main.Inf(i64 1)
+  %187 = call double @main.Inf(i64 -1)
+  %188 = call double @main.NaN()
+  %189 = call double @main.NaN()
+  %190 = call i1 @main.IsNaN(double %189)
+  %191 = call i1 @main.IsNaN(double 1.000000e+00)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double %186)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double %187)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double %188)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %190)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %191)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %192 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %193 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %192, i32 0, i32 0
+  store ptr @7, ptr %193, align 8
+  %194 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %192, i32 0, i32 1
+  store i64 7, ptr %194, align 4
+  %195 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %192, align 8
+  %196 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.StringToBytes"(%"github.com/goplus/llgo/internal/runtime.String" %195)
+  %197 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %198 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %197, i32 0, i32 0
+  store ptr @8, ptr %198, align 8
+  %199 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %197, i32 0, i32 1
+  store i64 7, ptr %199, align 4
+  %200 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %197, align 8
+  %201 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.StringToRunes"(%"github.com/goplus/llgo/internal/runtime.String" %200)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintSlice"(%"github.com/goplus/llgo/internal/runtime.Slice" %196)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintSlice"(%"github.com/goplus/llgo/internal/runtime.Slice" %201)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %202 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringFromBytes"(%"github.com/goplus/llgo/internal/runtime.Slice" %196)
+  %203 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringFromRunes"(%"github.com/goplus/llgo/internal/runtime.Slice" %201)
+  %204 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %196, 0
+  %205 = getelementptr inbounds i8, ptr %204, i64 3
+  %206 = load i8, ptr %205, align 1
+  %207 = sext i8 %206 to i32
+  %208 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringFromRune"(i32 %207)
+  %209 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %201, 0
+  %210 = getelementptr inbounds i32, ptr %209, i64 0
+  %211 = load i32, ptr %210, align 4
+  %212 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringFromRune"(i32 %211)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %202)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %203)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %208)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %212)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %213 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %214 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %213, i32 0, i32 0
+  store ptr @9, ptr %214, align 8
+  %215 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %213, i32 0, i32 1
+  store i64 3, ptr %215, align 4
+  %216 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %213, align 8
+  %217 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %218 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %217, i32 0, i32 0
+  store ptr @10, ptr %218, align 8
+  %219 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %217, i32 0, i32 1
+  store i64 3, ptr %219, align 4
+  %220 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %217, align 8
+  %221 = call i1 @"github.com/goplus/llgo/internal/runtime.StringEqual"(%"github.com/goplus/llgo/internal/runtime.String" %216, %"github.com/goplus/llgo/internal/runtime.String" %220)
+  %222 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %223 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %222, i32 0, i32 0
+  store ptr @11, ptr %223, align 8
+  %224 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %222, i32 0, i32 1
+  store i64 3, ptr %224, align 4
+  %225 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %222, align 8
+  %226 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %227 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %226, i32 0, i32 0
+  store ptr @12, ptr %227, align 8
+  %228 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %226, i32 0, i32 1
+  store i64 3, ptr %228, align 4
+  %229 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %226, align 8
+  %230 = call i1 @"github.com/goplus/llgo/internal/runtime.StringEqual"(%"github.com/goplus/llgo/internal/runtime.String" %225, %"github.com/goplus/llgo/internal/runtime.String" %229)
+  %231 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %232 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %231, i32 0, i32 0
+  store ptr @13, ptr %232, align 8
+  %233 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %231, i32 0, i32 1
+  store i64 3, ptr %233, align 4
+  %234 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %231, align 8
+  %235 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %236 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %235, i32 0, i32 0
+  store ptr @14, ptr %236, align 8
+  %237 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %235, i32 0, i32 1
+  store i64 3, ptr %237, align 4
+  %238 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %235, align 8
+  %239 = call i1 @"github.com/goplus/llgo/internal/runtime.StringEqual"(%"github.com/goplus/llgo/internal/runtime.String" %234, %"github.com/goplus/llgo/internal/runtime.String" %238)
+  %240 = xor i1 %239, true
+  %241 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %242 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %241, i32 0, i32 0
+  store ptr @15, ptr %242, align 8
+  %243 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %241, i32 0, i32 1
+  store i64 3, ptr %243, align 4
+  %244 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %241, align 8
+  %245 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %246 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %245, i32 0, i32 0
+  store ptr @16, ptr %246, align 8
+  %247 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %245, i32 0, i32 1
+  store i64 3, ptr %247, align 4
+  %248 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %245, align 8
+  %249 = call i1 @"github.com/goplus/llgo/internal/runtime.StringLess"(%"github.com/goplus/llgo/internal/runtime.String" %244, %"github.com/goplus/llgo/internal/runtime.String" %248)
+  %250 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %251 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %250, i32 0, i32 0
+  store ptr @17, ptr %251, align 8
+  %252 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %250, i32 0, i32 1
+  store i64 3, ptr %252, align 4
+  %253 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %250, align 8
+  %254 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %255 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %254, i32 0, i32 0
+  store ptr @18, ptr %255, align 8
+  %256 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %254, i32 0, i32 1
+  store i64 3, ptr %256, align 4
+  %257 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %254, align 8
+  %258 = call i1 @"github.com/goplus/llgo/internal/runtime.StringLess"(%"github.com/goplus/llgo/internal/runtime.String" %257, %"github.com/goplus/llgo/internal/runtime.String" %253)
+  %259 = xor i1 %258, true
+  %260 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %261 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %260, i32 0, i32 0
+  store ptr @19, ptr %261, align 8
+  %262 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %260, i32 0, i32 1
+  store i64 3, ptr %262, align 4
+  %263 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %260, align 8
+  %264 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %265 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %264, i32 0, i32 0
+  store ptr @20, ptr %265, align 8
+  %266 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %264, i32 0, i32 1
+  store i64 3, ptr %266, align 4
+  %267 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %264, align 8
+  %268 = call i1 @"github.com/goplus/llgo/internal/runtime.StringLess"(%"github.com/goplus/llgo/internal/runtime.String" %267, %"github.com/goplus/llgo/internal/runtime.String" %263)
+  %269 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %270 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %269, i32 0, i32 0
+  store ptr @21, ptr %270, align 8
+  %271 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %269, i32 0, i32 1
+  store i64 3, ptr %271, align 4
+  %272 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %269, align 8
+  %273 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %274 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %273, i32 0, i32 0
+  store ptr @22, ptr %274, align 8
+  %275 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %273, i32 0, i32 1
+  store i64 3, ptr %275, align 4
+  %276 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %273, align 8
+  %277 = call i1 @"github.com/goplus/llgo/internal/runtime.StringLess"(%"github.com/goplus/llgo/internal/runtime.String" %272, %"github.com/goplus/llgo/internal/runtime.String" %276)
+  %278 = xor i1 %277, true
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %221)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %230)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %240)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %249)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %259)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %268)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1 %278)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  ret i32 0
+}
 
 declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
 
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
 declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr, i64, i64, i64, i64, i64)
 
-declare i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice")
+declare void @"github.com/goplus/llgo/internal/runtime.PrintSlice"(%"github.com/goplus/llgo/internal/runtime.Slice")
 
-declare i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice")
+declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
 
-declare ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice")
-
-declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr, i64)
-
-declare i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String")
+declare void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64)
 
 declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String", i64, i64)
 
-declare i32 @printf(ptr, ...)
+declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.SliceAppend"(%"github.com/goplus/llgo/internal/runtime.Slice", ptr, i64, i64)
+
+define void @"main.init$abi"() {
+_llgo_0:
+  %0 = load ptr, ptr @_llgo_int, align 8
+  %1 = icmp eq ptr %0, null
+  br i1 %1, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
+  store ptr %2, ptr @_llgo_int, align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintUint"(i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintEface"(%"github.com/goplus/llgo/internal/runtime.eface")
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintPointer"(ptr)
+
+declare i64 @"github.com/goplus/llgo/internal/runtime.SliceCopy"(%"github.com/goplus/llgo/internal/runtime.Slice", ptr, i64, i64)
+
+define void @"main.main$2"(ptr %0) {
+_llgo_0:
+  %1 = load { ptr }, ptr %0, align 8
+  %2 = extractvalue { ptr } %1, 0
+  %3 = load i64, ptr %2, align 4
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %3)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64)
+
+define void @"main.main$1"() {
+_llgo_0:
+  %0 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i32 0, i32 0
+  store ptr @23, ptr %1, align 8
+  %2 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i32 0, i32 1
+  store i64 2, ptr %2, align 4
+  %3 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %0, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %3)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.NewStringIter"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare { i1, i64, i32 } @"github.com/goplus/llgo/internal/runtime.StringIterNext"(ptr)
+
+declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.StringToBytes"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.StringToRunes"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringFromBytes"(%"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringFromRunes"(%"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringFromRune"(i32)
+
+declare i1 @"github.com/goplus/llgo/internal/runtime.StringEqual"(%"github.com/goplus/llgo/internal/runtime.String", %"github.com/goplus/llgo/internal/runtime.String")
+
+declare i1 @"github.com/goplus/llgo/internal/runtime.StringLess"(%"github.com/goplus/llgo/internal/runtime.String", %"github.com/goplus/llgo/internal/runtime.String")

cl/_testrt/callback/out.ll

@@ -28,7 +28,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -48,7 +48,7 @@ _llgo_0:
   store ptr null, ptr %8, align 8
   %9 = load { ptr, ptr }, ptr %6, align 8
   call void @main.callback(ptr @1, { ptr, ptr } %9)
-  ret void
+  ret i32 0
 }
 
 define void @main.print(ptr %0) {

cl/_testrt/cast/out.ll

@@ -2,10 +2,11 @@
 source_filename = "main"
 
 %"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
-%"github.com/goplus/llgo/internal/runtime.iface" = type { ptr, ptr }
+%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
 
 @"main.init$guard" = global ptr null
 @0 = private unnamed_addr constant [6 x i8] c"error\00", align 1
+@_llgo_string = linkonce global ptr null
 @1 = private unnamed_addr constant [6 x i8] c"error\00", align 1
 @2 = private unnamed_addr constant [6 x i8] c"error\00", align 1
 @3 = private unnamed_addr constant [6 x i8] c"error\00", align 1
@@ -28,9 +29,22 @@ _llgo_0:
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @0, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @0, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -44,9 +58,22 @@ _llgo_0:
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @1, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @1, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -56,13 +83,26 @@ _llgo_2:                                          ; preds = %_llgo_0
 define void @main.cvt32Fto64F(float %0, double %1) {
 _llgo_0:
   %2 = fpext float %0 to double
-  %3 = fcmp one double %2, %1
+  %3 = fcmp une double %2, %1
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @2, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @2, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -76,9 +116,22 @@ _llgo_0:
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @3, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @3, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -92,9 +145,22 @@ _llgo_0:
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @4, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @4, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -108,9 +174,22 @@ _llgo_0:
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @5, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @5, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -120,13 +199,26 @@ _llgo_2:                                          ; preds = %_llgo_0
 define void @main.cvt64Fto32F(double %0, float %1) {
 _llgo_0:
   %2 = fptrunc double %0 to float
-  %3 = fcmp one float %2, %1
+  %3 = fcmp une float %2, %1
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @6, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @6, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -136,13 +228,26 @@ _llgo_2:                                          ; preds = %_llgo_0
 define void @main.cvt64Uto64F(i64 %0, double %1) {
 _llgo_0:
   %2 = uitofp i64 %0 to double
-  %3 = fcmp one double %2, %1
+  %3 = fcmp une double %2, %1
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @7, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @7, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -152,13 +257,26 @@ _llgo_2:                                          ; preds = %_llgo_0
 define void @main.cvt64to64F(i64 %0, double %1) {
 _llgo_0:
   %2 = sitofp i64 %0 to double
-  %3 = fcmp one double %2, %1
+  %3 = fcmp une double %2, %1
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @8, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @8, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -172,9 +290,22 @@ _llgo_0:
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @9, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @9, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -188,9 +319,22 @@ _llgo_0:
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @10, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @10, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
@@ -199,25 +343,51 @@ _llgo_2:                                          ; preds = %_llgo_0
 
 define void @main.cvtUinptr(i32 %0, i64 %1) {
 _llgo_0:
-  %2 = sext i32 %0 to i64
+  %2 = zext i32 %0 to i64
   %3 = icmp ne i64 %2, %1
   br i1 %3, label %_llgo_1, label %_llgo_2
 
 _llgo_1:                                          ; preds = %_llgo_0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @11, i64 5)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %4)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %5)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @11, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %8 = load ptr, ptr @_llgo_string, align 8
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %9, align 8
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 0
+  store ptr %8, ptr %11, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, i32 0, i32 1
+  store ptr %9, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %10, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %13)
   unreachable
 
 _llgo_2:                                          ; preds = %_llgo_0
-  %6 = trunc i64 %1 to i32
-  %7 = icmp ne i32 %6, %0
-  br i1 %7, label %_llgo_3, label %_llgo_4
+  %14 = trunc i64 %1 to i32
+  %15 = icmp ne i32 %14, %0
+  br i1 %15, label %_llgo_3, label %_llgo_4
 
 _llgo_3:                                          ; preds = %_llgo_2
-  %8 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @12, i64 5)
-  %9 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %8)
-  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %9)
+  %16 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %17 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %16, i32 0, i32 0
+  store ptr @12, ptr %17, align 8
+  %18 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %16, i32 0, i32 1
+  store i64 5, ptr %18, align 4
+  %19 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %16, align 8
+  %20 = load ptr, ptr @_llgo_string, align 8
+  %21 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %19, ptr %21, align 8
+  %22 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
+  %23 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %22, i32 0, i32 0
+  store ptr %20, ptr %23, align 8
+  %24 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %22, i32 0, i32 1
+  store ptr %21, ptr %24, align 8
+  %25 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %22, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %25)
   unreachable
 
 _llgo_4:                                          ; preds = %_llgo_2
@@ -231,13 +401,14 @@ _llgo_0:
 
 _llgo_1:                                          ; preds = %_llgo_0
   store i1 true, ptr @"main.init$guard", align 1
+  call void @"main.init$abi"()
   br label %_llgo_2
 
 _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -298,13 +469,28 @@ _llgo_0:
   call void @main.cvt32to64(i32 0, i64 0)
   call void @main.cvt32to64(i32 2147483647, i64 2147483647)
   call void @main.cvtUinptr(i32 1024, i64 1024)
+  ret i32 0
+}
+
+define void @"main.init$abi"() {
+_llgo_0:
+  %0 = load ptr, ptr @_llgo_string, align 8
+  %1 = icmp eq ptr %0, null
+  br i1 %1, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 24)
+  store ptr %2, ptr @_llgo_string, align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr, i64)
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
 
-declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String")
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64)
 
-declare void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface")
+declare void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface")
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/closure/out.ll

@@ -20,7 +20,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -47,7 +47,7 @@ _llgo_0:
   %13 = extractvalue { ptr, ptr } %12, 1
   %14 = extractvalue { ptr, ptr } %12, 0
   call void %14(ptr %13)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/concat/in.go

@@ -11,6 +11,10 @@ func concat(args ...string) (ret string) {
 	return
 }
 
+func info(s string) string {
+	return "" + s + "..."
+}
+
 func main() {
 	result := concat("Hello", " ", "World")
 	c.Fprintf(c.Stderr, c.Str("Hi, %s\n"), c.AllocaCStr(result))

cl/_testrt/concat/out.ll

@@ -6,47 +6,64 @@ source_filename = "main"
 
 @"main.init$guard" = global ptr null
 @0 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@1 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@2 = private unnamed_addr constant [4 x i8] c"...\00", align 1
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
-@1 = private unnamed_addr constant [6 x i8] c"Hello\00", align 1
-@2 = private unnamed_addr constant [2 x i8] c" \00", align 1
-@3 = private unnamed_addr constant [6 x i8] c"World\00", align 1
+@3 = private unnamed_addr constant [6 x i8] c"Hello\00", align 1
+@4 = private unnamed_addr constant [2 x i8] c" \00", align 1
+@5 = private unnamed_addr constant [6 x i8] c"World\00", align 1
 @__stderrp = external global ptr
-@4 = private unnamed_addr constant [8 x i8] c"Hi, %s\0A\00", align 1
+@6 = private unnamed_addr constant [8 x i8] c"Hi, %s\0A\00", align 1
 
 define %"github.com/goplus/llgo/internal/runtime.String" @main.concat(%"github.com/goplus/llgo/internal/runtime.Slice" %0) {
 _llgo_0:
-  %1 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %0)
-  %2 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @0, i64 0)
-  %3 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %2, 0
-  %4 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %2, 1
+  %1 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %0, 1
+  %2 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 0
+  store ptr @0, ptr %3, align 8
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 1
+  store i64 0, ptr %4, align 4
+  %5 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %2, align 8
   br label %_llgo_1
 
 _llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
-  %5 = phi ptr [ %3, %_llgo_0 ], [ %18, %_llgo_2 ]
-  %6 = phi i64 [ %4, %_llgo_0 ], [ %19, %_llgo_2 ]
-  %7 = phi i64 [ -1, %_llgo_0 ], [ %12, %_llgo_2 ]
-  %8 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %8, i32 0, i32 0
-  store ptr %5, ptr %9, align 8
-  %10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %8, i32 0, i32 1
-  store i64 %6, ptr %10, align 4
-  %11 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %8, align 8
-  %12 = add i64 %7, 1
-  %13 = icmp slt i64 %12, %1
-  br i1 %13, label %_llgo_2, label %_llgo_3
+  %6 = phi %"github.com/goplus/llgo/internal/runtime.String" [ %5, %_llgo_0 ], [ %14, %_llgo_2 ]
+  %7 = phi i64 [ -1, %_llgo_0 ], [ %8, %_llgo_2 ]
+  %8 = add i64 %7, 1
+  %9 = icmp slt i64 %8, %1
+  br i1 %9, label %_llgo_2, label %_llgo_3
 
 _llgo_2:                                          ; preds = %_llgo_1
-  %14 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %0)
-  %15 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %14, i64 %12
-  %16 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %15, align 8
-  %17 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringCat"(%"github.com/goplus/llgo/internal/runtime.String" %11, %"github.com/goplus/llgo/internal/runtime.String" %16)
-  %18 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %17, 0
-  %19 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %17, 1
+  %10 = icmp slt i64 %8, 0
+  call void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1 %10)
+  %11 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %0, 0
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %11, i64 %8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %12, align 8
+  %14 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringCat"(%"github.com/goplus/llgo/internal/runtime.String" %6, %"github.com/goplus/llgo/internal/runtime.String" %13)
   br label %_llgo_1
 
 _llgo_3:                                          ; preds = %_llgo_1
-  ret %"github.com/goplus/llgo/internal/runtime.String" %11
+  ret %"github.com/goplus/llgo/internal/runtime.String" %6
+}
+
+define %"github.com/goplus/llgo/internal/runtime.String" @main.info(%"github.com/goplus/llgo/internal/runtime.String" %0) {
+_llgo_0:
+  %1 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %2 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %1, i32 0, i32 0
+  store ptr @1, ptr %2, align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %1, i32 0, i32 1
+  store i64 0, ptr %3, align 4
+  %4 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %1, align 8
+  %5 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringCat"(%"github.com/goplus/llgo/internal/runtime.String" %4, %"github.com/goplus/llgo/internal/runtime.String" %0)
+  %6 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %6, i32 0, i32 0
+  store ptr @2, ptr %7, align 8
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %6, i32 0, i32 1
+  store i64 3, ptr %8, align 4
+  %9 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %6, align 8
+  %10 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringCat"(%"github.com/goplus/llgo/internal/runtime.String" %5, %"github.com/goplus/llgo/internal/runtime.String" %9)
+  ret %"github.com/goplus/llgo/internal/runtime.String" %10
 }
 
 define void @main.init() {
@@ -62,7 +79,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -70,41 +87,55 @@ _llgo_0:
   call void @main.init()
   %2 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 48)
   %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 0
-  %4 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @1, i64 5)
-  store %"github.com/goplus/llgo/internal/runtime.String" %4, ptr %3, align 8
-  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 1
-  %6 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @2, i64 1)
-  store %"github.com/goplus/llgo/internal/runtime.String" %6, ptr %5, align 8
-  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 2
-  %8 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @3, i64 5)
-  store %"github.com/goplus/llgo/internal/runtime.String" %8, ptr %7, align 8
-  %9 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %2, i64 16, i64 3, i64 0, i64 3, i64 3)
-  %10 = call %"github.com/goplus/llgo/internal/runtime.String" @main.concat(%"github.com/goplus/llgo/internal/runtime.Slice" %9)
-  %11 = load ptr, ptr @__stderrp, align 8
-  %12 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %10)
-  %13 = add i64 %12, 1
-  %14 = alloca i8, i64 %13, align 1
-  %15 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %14, %"github.com/goplus/llgo/internal/runtime.String" %10)
-  %16 = call i32 (ptr, ptr, ...) @fprintf(ptr %11, ptr @4, ptr %15)
-  ret void
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  store ptr @3, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  store i64 5, ptr %6, align 4
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %3, align 8
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 1
+  %9 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %9, i32 0, i32 0
+  store ptr @4, ptr %10, align 8
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %9, i32 0, i32 1
+  store i64 1, ptr %11, align 4
+  %12 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %9, align 8
+  store %"github.com/goplus/llgo/internal/runtime.String" %12, ptr %8, align 8
+  %13 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 2
+  %14 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %15 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %14, i32 0, i32 0
+  store ptr @5, ptr %15, align 8
+  %16 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %14, i32 0, i32 1
+  store i64 5, ptr %16, align 4
+  %17 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %14, align 8
+  store %"github.com/goplus/llgo/internal/runtime.String" %17, ptr %13, align 8
+  %18 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %19 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %18, i32 0, i32 0
+  store ptr %2, ptr %19, align 8
+  %20 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %18, i32 0, i32 1
+  store i64 3, ptr %20, align 4
+  %21 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %18, i32 0, i32 2
+  store i64 3, ptr %21, align 4
+  %22 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %18, align 8
+  %23 = call %"github.com/goplus/llgo/internal/runtime.String" @main.concat(%"github.com/goplus/llgo/internal/runtime.Slice" %22)
+  %24 = load ptr, ptr @__stderrp, align 8
+  %25 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %23, 1
+  %26 = add i64 %25, 1
+  %27 = alloca i8, i64 %26, align 1
+  %28 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %27, %"github.com/goplus/llgo/internal/runtime.String" %23)
+  %29 = call i32 (ptr, ptr, ...) @fprintf(ptr %24, ptr @6, ptr %28)
+  ret i32 0
 }
 
-declare i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice")
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice")
+declare void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1)
 
 declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringCat"(%"github.com/goplus/llgo/internal/runtime.String", %"github.com/goplus/llgo/internal/runtime.String")
 
-declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr, i64)
-
 declare void @"github.com/goplus/llgo/internal/runtime.init"()
 
 declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
 
-declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr, i64, i64, i64, i64, i64)
-
-declare i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String")
-
 declare ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr, %"github.com/goplus/llgo/internal/runtime.String")
 
 declare i32 @fprintf(ptr, ptr, ...)

cl/_testrt/cstr/out.ll

@@ -19,14 +19,14 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
   call void (ptr, ...) @printf(ptr @0)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/cvar/out.ll

@@ -20,7 +20,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -28,7 +28,7 @@ _llgo_0:
   call void @main.init()
   %2 = load { [16 x i8], [2 x ptr] }, ptr @_bar_x, align 8
   %3 = load { [16 x i8] }, ptr @_bar_y, align 1
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/fprintf/out.ll

@@ -20,7 +20,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -28,7 +28,7 @@ _llgo_0:
   call void @main.init()
   %2 = load ptr, ptr @__stderrp, align 8
   call void (ptr, ptr, ...) @fprintf(ptr %2, ptr @0, i64 100)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/gblarray/out.ll

@@ -1,11 +1,12 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-%"github.com/goplus/llgo/internal/abi.Type" = type { i64, i64, i32, i8, i8, i8, i8, { ptr, ptr }, ptr, i32, i32 }
+%"github.com/goplus/llgo/internal/abi.Type" = type { i64, i64, i32, i8, i8, i8, i8, { ptr, ptr }, ptr, %"github.com/goplus/llgo/internal/runtime.String", ptr }
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
 
-@main.basicTypes = global ptr null
+@main.basicTypes = global [25 x ptr] undef
 @"main.init$guard" = global ptr null
-@main.sizeBasicTypes = global ptr null
+@main.sizeBasicTypes = global [25 x i64] undef
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
 @0 = private unnamed_addr constant [20 x i8] c"Kind: %d, Size: %d\0A\00", align 1
@@ -19,7 +20,7 @@ _llgo_0:
 
 define ptr @main.basicType(i64 %0) {
 _llgo_0:
-  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 56)
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 72)
   %2 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %1, i32 0, i32 0
   %3 = getelementptr inbounds i64, ptr @main.sizeBasicTypes, i64 %0
   %4 = load i64, ptr %3, align 4
@@ -50,7 +51,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -63,7 +64,7 @@ _llgo_0:
   %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %2, i32 0, i32 0
   %7 = load i64, ptr %6, align 4
   %8 = call i32 (ptr, ...) @printf(ptr @0, i64 %5, i64 %7)
-  ret void
+  ret i32 0
 }
 
 declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)

cl/_testrt/hello/out.ll

@@ -1,7 +1,7 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-@main.format = global ptr null
+@main.format = global [10 x i8] undef
 @"main.init$guard" = global ptr null
 @__llgo_argc = global ptr null
 @__llgo_argv = global ptr null
@@ -29,7 +29,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -37,7 +37,7 @@ _llgo_0:
   call void @main.init()
   %2 = call i32 @strlen(ptr @main.format)
   call void (ptr, ...) @printf(ptr @main.format, i32 %2)
-  ret void
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/index/out.ll

@@ -29,7 +29,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -118,17 +118,27 @@ _llgo_0:
   %60 = getelementptr inbounds i64, ptr %53, i64 2
   %61 = load i64, ptr %60, align 4
   %62 = call i32 (ptr, ...) @printf(ptr @3, i64 %61)
-  %63 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @5, i64 6)
-  %64 = call ptr @"github.com/goplus/llgo/internal/runtime.StringData"(%"github.com/goplus/llgo/internal/runtime.String" %63)
-  %65 = getelementptr inbounds i8, ptr %64, i64 2
-  %66 = load i8, ptr %65, align 1
-  %67 = call i32 (ptr, ...) @printf(ptr @4, i8 %66)
-  %68 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @7, i64 6)
-  %69 = call ptr @"github.com/goplus/llgo/internal/runtime.StringData"(%"github.com/goplus/llgo/internal/runtime.String" %68)
-  %70 = getelementptr inbounds i8, ptr %69, i64 1
-  %71 = load i8, ptr %70, align 1
-  %72 = call i32 (ptr, ...) @printf(ptr @6, i8 %71)
-  ret void
+  %63 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %64 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %63, i32 0, i32 0
+  store ptr @5, ptr %64, align 8
+  %65 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %63, i32 0, i32 1
+  store i64 6, ptr %65, align 4
+  %66 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %63, align 8
+  %67 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %66, 0
+  %68 = getelementptr inbounds i8, ptr %67, i64 2
+  %69 = load i8, ptr %68, align 1
+  %70 = call i32 (ptr, ...) @printf(ptr @4, i8 %69)
+  %71 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %72 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %71, i32 0, i32 0
+  store ptr @7, ptr %72, align 8
+  %73 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %71, i32 0, i32 1
+  store i64 6, ptr %73, align 4
+  %74 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %71, align 8
+  %75 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %74, 0
+  %76 = getelementptr inbounds i8, ptr %75, i64 1
+  %77 = load i8, ptr %76, align 1
+  %78 = call i32 (ptr, ...) @printf(ptr @6, i8 %77)
+  ret i32 0
 }
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()
@@ -136,7 +146,3 @@ declare void @"github.com/goplus/llgo/internal/runtime.init"()
 declare ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr, i64)
 
 declare i32 @printf(ptr, ...)
-
-declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr, i64)
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.StringData"(%"github.com/goplus/llgo/internal/runtime.String")

cl/_testrt/intgen/out.ll

@@ -15,30 +15,39 @@ define %"github.com/goplus/llgo/internal/runtime.Slice" @main.genInts(i64 %0, {
 _llgo_0:
   %2 = mul i64 %0, 4
   %3 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 %2)
-  %4 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice"(ptr %3, i64 %0, i64 %0)
-  %5 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %4)
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %4, i32 0, i32 0
+  store ptr %3, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %4, i32 0, i32 1
+  store i64 %0, ptr %6, align 4
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %4, i32 0, i32 2
+  store i64 %0, ptr %7, align 4
+  %8 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %4, align 8
+  %9 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %8, 1
   br label %_llgo_1
 
 _llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
-  %6 = phi i64 [ -1, %_llgo_0 ], [ %7, %_llgo_2 ]
-  %7 = add i64 %6, 1
-  %8 = icmp slt i64 %7, %5
-  br i1 %8, label %_llgo_2, label %_llgo_3
+  %10 = phi i64 [ -1, %_llgo_0 ], [ %11, %_llgo_2 ]
+  %11 = add i64 %10, 1
+  %12 = icmp slt i64 %11, %9
+  br i1 %12, label %_llgo_2, label %_llgo_3
 
 _llgo_2:                                          ; preds = %_llgo_1
-  %9 = extractvalue { ptr, ptr } %1, 1
-  %10 = extractvalue { ptr, ptr } %1, 0
-  %11 = call i32 %10(ptr %9)
-  %12 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %4)
-  %13 = getelementptr inbounds i32, ptr %12, i64 %7
-  store i32 %11, ptr %13, align 4
+  %13 = extractvalue { ptr, ptr } %1, 1
+  %14 = extractvalue { ptr, ptr } %1, 0
+  %15 = call i32 %14(ptr %13)
+  %16 = icmp slt i64 %11, 0
+  call void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1 %16)
+  %17 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %8, 0
+  %18 = getelementptr inbounds i32, ptr %17, i64 %11
+  store i32 %15, ptr %18, align 4
   br label %_llgo_1
 
 _llgo_3:                                          ; preds = %_llgo_1
-  ret %"github.com/goplus/llgo/internal/runtime.Slice" %4
+  ret %"github.com/goplus/llgo/internal/runtime.Slice" %8
 }
 
-define i32 @"(*main.generator).next"(ptr %0) {
+define i32 @"main.(*generator).next"(ptr %0) {
 _llgo_0:
   %1 = getelementptr inbounds %main.generator, ptr %0, i32 0, i32 0
   %2 = load i32, ptr %1, align 4
@@ -63,7 +72,7 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define void @main(i32 %0, ptr %1) {
+define i32 @main(i32 %0, ptr %1) {
 _llgo_0:
   store i32 %0, ptr @__llgo_argc, align 4
   store ptr %1, ptr @__llgo_argv, align 8
@@ -76,7 +85,7 @@ _llgo_0:
   store ptr null, ptr %4, align 8
   %5 = load { ptr, ptr }, ptr %2, align 8
   %6 = call %"github.com/goplus/llgo/internal/runtime.Slice" @main.genInts(i64 5, { ptr, ptr } %5)
-  %7 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %6)
+  %7 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %6, 1
   br label %_llgo_1
 
 _llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
@@ -86,82 +95,84 @@ _llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
   br i1 %10, label %_llgo_2, label %_llgo_3
 
 _llgo_2:                                          ; preds = %_llgo_1
-  %11 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %6)
-  %12 = getelementptr inbounds i32, ptr %11, i64 %9
-  %13 = load i32, ptr %12, align 4
-  %14 = call i32 (ptr, ...) @printf(ptr @0, i32 %13)
+  %11 = icmp slt i64 %9, 0
+  call void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1 %11)
+  %12 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %6, 0
+  %13 = getelementptr inbounds i32, ptr %12, i64 %9
+  %14 = load i32, ptr %13, align 4
+  %15 = call i32 (ptr, ...) @printf(ptr @0, i32 %14)
   br label %_llgo_1
 
 _llgo_3:                                          ; preds = %_llgo_1
-  %15 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 4)
-  store i32 1, ptr %15, align 4
-  %16 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
-  %17 = getelementptr inbounds { ptr }, ptr %16, i32 0, i32 0
-  store ptr %15, ptr %17, align 8
-  %18 = alloca { ptr, ptr }, align 8
-  %19 = getelementptr inbounds { ptr, ptr }, ptr %18, i32 0, i32 0
-  store ptr @"main.main$1", ptr %19, align 8
-  %20 = getelementptr inbounds { ptr, ptr }, ptr %18, i32 0, i32 1
-  store ptr %16, ptr %20, align 8
-  %21 = load { ptr, ptr }, ptr %18, align 8
-  %22 = call %"github.com/goplus/llgo/internal/runtime.Slice" @main.genInts(i64 5, { ptr, ptr } %21)
-  %23 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %22)
+  %16 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 4)
+  store i32 1, ptr %16, align 4
+  %17 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
+  %18 = getelementptr inbounds { ptr }, ptr %17, i32 0, i32 0
+  store ptr %16, ptr %18, align 8
+  %19 = alloca { ptr, ptr }, align 8
+  %20 = getelementptr inbounds { ptr, ptr }, ptr %19, i32 0, i32 0
+  store ptr @"main.main$1", ptr %20, align 8
+  %21 = getelementptr inbounds { ptr, ptr }, ptr %19, i32 0, i32 1
+  store ptr %17, ptr %21, align 8
+  %22 = load { ptr, ptr }, ptr %19, align 8
+  %23 = call %"github.com/goplus/llgo/internal/runtime.Slice" @main.genInts(i64 5, { ptr, ptr } %22)
+  %24 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %23, 1
   br label %_llgo_4
 
 _llgo_4:                                          ; preds = %_llgo_5, %_llgo_3
-  %24 = phi i64 [ -1, %_llgo_3 ], [ %25, %_llgo_5 ]
-  %25 = add i64 %24, 1
-  %26 = icmp slt i64 %25, %23
-  br i1 %26, label %_llgo_5, label %_llgo_6
+  %25 = phi i64 [ -1, %_llgo_3 ], [ %26, %_llgo_5 ]
+  %26 = add i64 %25, 1
+  %27 = icmp slt i64 %26, %24
+  br i1 %27, label %_llgo_5, label %_llgo_6
 
 _llgo_5:                                          ; preds = %_llgo_4
-  %27 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %22)
-  %28 = getelementptr inbounds i32, ptr %27, i64 %25
-  %29 = load i32, ptr %28, align 4
-  %30 = call i32 (ptr, ...) @printf(ptr @1, i32 %29)
+  %28 = icmp slt i64 %26, 0
+  call void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1 %28)
+  %29 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %23, 0
+  %30 = getelementptr inbounds i32, ptr %29, i64 %26
+  %31 = load i32, ptr %30, align 4
+  %32 = call i32 (ptr, ...) @printf(ptr @1, i32 %31)
   br label %_llgo_4
 
 _llgo_6:                                          ; preds = %_llgo_4
-  %31 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 4)
-  %32 = getelementptr inbounds %main.generator, ptr %31, i32 0, i32 0
-  store i32 1, ptr %32, align 4
-  %33 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
-  %34 = getelementptr inbounds { ptr }, ptr %33, i32 0, i32 0
-  store ptr %31, ptr %34, align 8
-  %35 = alloca { ptr, ptr }, align 8
-  %36 = getelementptr inbounds { ptr, ptr }, ptr %35, i32 0, i32 0
-  store ptr @"main.next$bound", ptr %36, align 8
-  %37 = getelementptr inbounds { ptr, ptr }, ptr %35, i32 0, i32 1
-  store ptr %33, ptr %37, align 8
-  %38 = load { ptr, ptr }, ptr %35, align 8
-  %39 = call %"github.com/goplus/llgo/internal/runtime.Slice" @main.genInts(i64 5, { ptr, ptr } %38)
-  %40 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %39)
+  %33 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 4)
+  %34 = getelementptr inbounds %main.generator, ptr %33, i32 0, i32 0
+  store i32 1, ptr %34, align 4
+  %35 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
+  %36 = getelementptr inbounds { ptr }, ptr %35, i32 0, i32 0
+  store ptr %33, ptr %36, align 8
+  %37 = alloca { ptr, ptr }, align 8
+  %38 = getelementptr inbounds { ptr, ptr }, ptr %37, i32 0, i32 0
+  store ptr @"main.next$bound", ptr %38, align 8
+  %39 = getelementptr inbounds { ptr, ptr }, ptr %37, i32 0, i32 1
+  store ptr %35, ptr %39, align 8
+  %40 = load { ptr, ptr }, ptr %37, align 8
+  %41 = call %"github.com/goplus/llgo/internal/runtime.Slice" @main.genInts(i64 5, { ptr, ptr } %40)
+  %42 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %41, 1
   br label %_llgo_7
 
 _llgo_7:                                          ; preds = %_llgo_8, %_llgo_6
-  %41 = phi i64 [ -1, %_llgo_6 ], [ %42, %_llgo_8 ]
-  %42 = add i64 %41, 1
-  %43 = icmp slt i64 %42, %40
-  br i1 %43, label %_llgo_8, label %_llgo_9
+  %43 = phi i64 [ -1, %_llgo_6 ], [ %44, %_llgo_8 ]
+  %44 = add i64 %43, 1
+  %45 = icmp slt i64 %44, %42
+  br i1 %45, label %_llgo_8, label %_llgo_9
 
 _llgo_8:                                          ; preds = %_llgo_7
-  %44 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %39)
-  %45 = getelementptr inbounds i32, ptr %44, i64 %42
-  %46 = load i32, ptr %45, align 4
-  %47 = call i32 (ptr, ...) @printf(ptr @2, i32 %46)
+  %46 = icmp slt i64 %44, 0
+  call void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1 %46)
+  %47 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %41, 0
+  %48 = getelementptr inbounds i32, ptr %47, i64 %44
+  %49 = load i32, ptr %48, align 4
+  %50 = call i32 (ptr, ...) @printf(ptr @2, i32 %49)
   br label %_llgo_7
 
 _llgo_9:                                          ; preds = %_llgo_7
-  ret void
+  ret i32 0
 }
 
 declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
 
-declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice"(ptr, i64, i64)
-
-declare i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice")
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice")
+declare void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1)
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()
 
@@ -194,6 +205,6 @@ define i32 @"main.next$bound"(ptr %0) {
 _llgo_0:
   %1 = load { ptr }, ptr %0, align 8
   %2 = extractvalue { ptr } %1, 0
-  %3 = call i32 @"(*main.generator).next"(ptr %2)
+  %3 = call i32 @"main.(*generator).next"(ptr %2)
   ret i32 %3
 }

cl/_testrt/linkname/in.go

@@ -3,13 +3,27 @@ package main
 import (
 	_ "unsafe"
 
+	_ "github.com/goplus/llgo/cl/internal/linktarget"
 	"github.com/goplus/llgo/internal/runtime/c"
 )
 
 //go:linkname print github.com/goplus/llgo/cl/internal/linktarget.F
 func print(a, b, c, d *c.Char)
 
+type m struct {
+	s string
+}
+
+//go:linkname setInfo github.com/goplus/llgo/cl/internal/linktarget.(*m).setInfo
+func setInfo(*m, string)
+
+//go:linkname info github.com/goplus/llgo/cl/internal/linktarget.m.info
+func info(m) string
+
 func main() {
 	print(c.Str("a"), c.Str("b"), c.Str("c"), c.Str("d"))
 	print(c.Str("1"), c.Str("2"), c.Str("3"), c.Str("4"))
+	var m m
+	setInfo(&m, "hello")
+	println(info(m))
 }