Merge pull request #106 from xushiwei/mod

llvm v0.7.5

.github/dependabot.yml

@@ -0,0 +1,19 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    labels:
+      - dependabot
+      - actions
+    schedule:
+      interval: daily
+
+  - package-ecosystem: "gomod" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"

.github/workflows/go.yml

@@ -17,7 +17,7 @@ jobs:
       matrix:
         llvm: [17]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Update Homebrew
         if: matrix.llvm == 17 # needed as long as LLVM 17 is still fresh
@@ -26,7 +26,7 @@ jobs:
         run: HOMEBREW_NO_AUTO_UPDATE=1 brew install llvm@${{ matrix.llvm }}
         
       - name: Set up Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v5
         with:
           go-version: '1.20'
 
@@ -42,7 +42,7 @@ jobs:
       matrix:
         llvm: [17]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install LLVM ${{ matrix.llvm }}
       run: |
@@ -52,7 +52,7 @@ jobs:
         sudo apt-get install --no-install-recommends llvm-${{ matrix.llvm }}-dev
 
     - name: Set up Go
-      uses: actions/setup-go@v4
+      uses: actions/setup-go@v5
       with:
         go-version: '1.20'
 
@@ -60,4 +60,10 @@ jobs:
       run: go build -v ./...
 
     - name: Test
-      run: go test -v ./...
+      run: go test -v -coverprofile="coverage.txt" -covermode=atomic ./...
+
+    - name: Upload coverage reports to Codecov
+      uses: codecov/codecov-action@v4
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        slug: goplus/llgo

.gitignore

@@ -8,6 +8,11 @@
 *.so
 *.dylib
 
+.DS_Store
+err.log
+
+_go/
+_runtime/
 _tinygo/
 
 # Test binary, built with `go test -c`

README.md

@@ -3,8 +3,9 @@ llgo - A Go compiler based on LLVM
 
 [![Build Status](https://github.com/goplus/llgo/actions/workflows/go.yml/badge.svg)](https://github.com/goplus/llgo/actions/workflows/go.yml)
 [![Go Report Card](https://goreportcard.com/badge/github.com/goplus/llgo)](https://goreportcard.com/report/github.com/goplus/llgo)
-[![GoDoc](https://pkg.go.dev/badge/github.com/goplus/llgo.svg)](https://pkg.go.dev/github.com/goplus/llgo)
-<!--
 [![GitHub release](https://img.shields.io/github/v/tag/goplus/llgo.svg?label=release)](https://github.com/goplus/llgo/releases)
 [![Coverage Status](https://codecov.io/gh/goplus/llgo/branch/main/graph/badge.svg)](https://codecov.io/gh/goplus/llgo)
--->
+[![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).

build/build.go

@@ -1,57 +0,0 @@
-/*
- * Copyright (c) 2023 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 build
-
-import (
-	"go/build"
-)
-
-// An ImportMode controls the behavior of the Import method.
-type ImportMode = build.ImportMode
-
-// A Package describes the Go package found in a directory.
-type Package struct {
-	*build.Package
-}
-
-// A Context specifies the supporting context for a build.
-type Context struct {
-	*build.Context
-}
-
-// Import returns details about the Go package named by the import path,
-// interpreting local import paths relative to the srcDir directory.
-// If the path is a local import path naming a package that can be imported
-// using a standard import path, the returned package will set p.ImportPath
-// to that path.
-//
-// If an error occurs, Import returns a non-nil error and a non-nil
-// *Package containing partial information.
-func (ctxt Context) Import(path string, srcDir string, mode ImportMode) (ret Package, err error) {
-	pkg, err := build.Import(path, srcDir, mode)
-	if err != nil {
-		return
-	}
-	ret = Package{pkg}
-	return
-}
-
-// ImportDir is like Import but processes the Go package found in
-// the named directory.
-func (ctxt *Context) ImportDir(dir string, mode ImportMode) (Package, error) {
-	return ctxt.Import(".", dir, mode)
-}

chore/gentests/gentests.go

@@ -0,0 +1,57 @@
+/*
+ * 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 (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/goplus/llgo/internal/llgen"
+	"github.com/goplus/mod"
+)
+
+func main() {
+	dir, _, err := mod.FindGoMod(".")
+	check(err)
+
+	llgen.Verbose = false
+
+	llgenDir(dir + "/cl/_testrt")
+	llgenDir(dir+"/cl/_testdata", "")
+}
+
+func llgenDir(dir string, pkgPath ...string) {
+	fis, err := os.ReadDir(dir)
+	check(err)
+	for _, fi := range fis {
+		name := fi.Name()
+		if !fi.IsDir() || strings.HasPrefix(name, "_") {
+			continue
+		}
+		testDir := dir + "/" + name
+		fmt.Fprintln(os.Stderr, "llgen", testDir)
+		os.Chdir(testDir)
+		llgen.SmartDoFile("in.go", pkgPath...)
+	}
+}
+
+func check(err error) {
+	if err != nil {
+		panic(err)
+	}
+}

chore/llgen/llgen.go

@@ -19,22 +19,16 @@ package main
 import (
 	"fmt"
 	"os"
-	"path/filepath"
 
-	"github.com/goplus/llgo/x/llgen"
+	"github.com/goplus/llgo/internal/llgen"
 )
 
 func main() {
-	if len(os.Args) != 2 {
-		fmt.Fprintln(os.Stderr, "Usage: llgen xxx.go")
+	if len(os.Args) < 2 {
+		fmt.Fprintln(os.Stderr, "Usage: llgen <pkg> [pkgPath]")
 		return
 	}
 
-	inFile := os.Args[1]
-
-	dir, _ := filepath.Split(inFile)
-	outFile := dir + "out.ll"
-
 	llgen.Init()
-	llgen.Do(inFile, outFile)
+	llgen.SmartDoFile(os.Args[1], os.Args[2:]...)
 }

chore/ssadump/ssadump.go

@@ -0,0 +1,201 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// ssadump: a tool for displaying and interpreting the SSA form of Go programs.
+package main // import "golang.org/x/tools/cmd/ssadump"
+
+import (
+	"flag"
+	"fmt"
+	"go/build"
+	"go/types"
+	"os"
+	"runtime"
+	"runtime/pprof"
+
+	"golang.org/x/tools/go/buildutil"
+	"golang.org/x/tools/go/packages"
+	"golang.org/x/tools/go/ssa"
+	"golang.org/x/tools/go/ssa/interp"
+	"golang.org/x/tools/go/ssa/ssautil"
+)
+
+const (
+	loadFiles   = packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles
+	loadImports = loadFiles | packages.NeedImports
+	loadTypes   = loadImports | packages.NeedTypes | packages.NeedTypesSizes
+	loadSyntax  = loadTypes | packages.NeedSyntax | packages.NeedTypesInfo
+)
+
+// flags
+var (
+	mode = ssa.BuilderMode(0)
+
+	testFlag = flag.Bool("test", false, "include implicit test packages and executables")
+
+	runFlag = flag.Bool("run", false, "interpret the SSA program")
+
+	interpFlag = flag.String("interp", "", `Options controlling the SSA test interpreter.
+The value is a sequence of zero or more more of these letters:
+R	disable [R]ecover() from panic; show interpreter crash instead.
+T	[T]race execution of the program.  Best for single-threaded programs!
+`)
+
+	cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file")
+
+	args stringListValue
+)
+
+func init() {
+	flag.Var(&mode, "build", ssa.BuilderModeDoc)
+	flag.Var((*buildutil.TagsFlag)(&build.Default.BuildTags), "tags", buildutil.TagsFlagDoc)
+	flag.Var(&args, "arg", "add argument to interpreted program")
+}
+
+const usage = `SSA builder and interpreter.
+Usage: ssadump [-build=[DBCSNFLG]] [-test] [-run] [-interp=[TR]] [-arg=...] package...
+Use -help flag to display options.
+
+Examples:
+% ssadump -build=F hello.go              # dump SSA form of a single package
+% ssadump -build=F -test fmt             # dump SSA form of a package and its tests
+% ssadump -run -interp=T hello.go        # interpret a program, with tracing
+
+The -run flag causes ssadump to build the code in a runnable form and run the first
+package named main.
+
+Interpretation of the standard "testing" package is no longer supported.
+`
+
+func main() {
+	if err := doMain(); err != nil {
+		fmt.Fprintf(os.Stderr, "ssadump: %s\n", err)
+		os.Exit(1)
+	}
+}
+
+func doMain() error {
+	flag.Parse()
+	if len(flag.Args()) == 0 {
+		fmt.Fprint(os.Stderr, usage)
+		os.Exit(1)
+	}
+
+	cfg := &packages.Config{
+		Mode:  loadSyntax,
+		Tests: *testFlag,
+	}
+
+	// Choose types.Sizes from conf.Build.
+	// TODO(adonovan): remove this when go/packages provides a better way.
+	var wordSize int64 = 8
+	switch build.Default.GOARCH {
+	case "386", "arm":
+		wordSize = 4
+	}
+	sizes := &types.StdSizes{
+		MaxAlign: 8,
+		WordSize: wordSize,
+	}
+
+	var interpMode interp.Mode
+	for _, c := range *interpFlag {
+		switch c {
+		case 'T':
+			interpMode |= interp.EnableTracing
+		case 'R':
+			interpMode |= interp.DisableRecover
+		default:
+			return fmt.Errorf("unknown -interp option: '%c'", c)
+		}
+	}
+
+	// Profiling support.
+	if *cpuprofile != "" {
+		f, err := os.Create(*cpuprofile)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+			os.Exit(1)
+		}
+		pprof.StartCPUProfile(f)
+		defer pprof.StopCPUProfile()
+	}
+
+	// Load, parse and type-check the initial packages,
+	// and, if -run, their dependencies.
+	if *runFlag {
+		cfg.Mode = loadSyntax | packages.NeedDeps
+	}
+	initial, err := packages.Load(cfg, flag.Args()...)
+	if err != nil {
+		return err
+	}
+	if len(initial) == 0 {
+		return fmt.Errorf("no packages")
+	}
+	if packages.PrintErrors(initial) > 0 {
+		return fmt.Errorf("packages contain errors")
+	}
+
+	// Turn on instantiating generics during build if the program will be run.
+	if *runFlag {
+		mode |= ssa.InstantiateGenerics
+	}
+
+	// Create SSA-form program representation.
+	prog, pkgs := ssautil.AllPackages(initial, mode)
+
+	for i, p := range pkgs {
+		if p == nil {
+			return fmt.Errorf("cannot build SSA for package %s", initial[i])
+		}
+	}
+
+	if !*runFlag {
+		// Build and display only the initial packages
+		// (and synthetic wrappers).
+		for _, p := range pkgs {
+			p.Build()
+		}
+
+	} else {
+		// Run the interpreter.
+		// Build SSA for all packages.
+		prog.Build()
+
+		// Earlier versions of the interpreter needed the runtime
+		// package; however, interp cannot handle unsafe constructs
+		// used during runtime's package initialization at the moment.
+		// The key construct blocking support is:
+		//    *((*T)(unsafe.Pointer(p)))
+		// Unfortunately, this means only trivial programs can be
+		// interpreted by ssadump.
+		if prog.ImportedPackage("runtime") != nil {
+			return fmt.Errorf("-run: program depends on runtime package (interpreter can run only trivial programs)")
+		}
+
+		if runtime.GOARCH != build.Default.GOARCH {
+			return fmt.Errorf("cross-interpretation is not supported (target has GOARCH %s, interpreter has %s)",
+				build.Default.GOARCH, runtime.GOARCH)
+		}
+
+		// Run first main package.
+		for _, main := range ssautil.MainPackages(pkgs) {
+			fmt.Fprintf(os.Stderr, "Running: %s\n", main.Pkg.Path())
+			os.Exit(interp.Interpret(main, interpMode, sizes, main.Pkg.Path(), args))
+		}
+		return fmt.Errorf("no main package")
+	}
+	return nil
+}
+
+// stringListValue is a flag.Value that accumulates strings.
+// e.g. --flag=one --flag=two would produce []string{"one", "two"}.
+type stringListValue []string
+
+func (ss *stringListValue) Get() interface{} { return []string(*ss) }
+
+func (ss *stringListValue) String() string { return fmt.Sprintf("%q", *ss) }
+
+func (ss *stringListValue) Set(s string) error { *ss = append(*ss, s); return nil }

cl/_testdata/apkg/in.go

@@ -0,0 +1,8 @@
+package apkg
+
+func Max(a, b float64) float64 {
+	if a > b {
+		return a
+	}
+	return b
+}

cl/_testdata/apkg/out.ll

@@ -0,0 +1,29 @@
+; ModuleID = 'apkg'
+source_filename = "apkg"
+
+@"apkg.init$guard" = global ptr null
+
+define double @apkg.Max(double %0, double %1) {
+_llgo_0:
+  %2 = fcmp ogt double %0, %1
+  br i1 %2, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  ret double %0
+
+_llgo_2:                                          ; preds = %_llgo_0
+  ret double %1
+}
+
+define void @apkg.init() {
+_llgo_0:
+  %0 = load i1, ptr @"apkg.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"apkg.init$guard", align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}

cl/_testdata/fncall/out.ll

@@ -1,22 +1,30 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-@"init$guard" = global ptr null
+@"main.init$guard" = global ptr null
 
-define void @init() {
+define void @main.init() {
 _llgo_0:
-  %0 = load i1, ptr @"init$guard", align 1
+  %0 = load i1, ptr @"main.init$guard", align 1
   br i1 %0, label %_llgo_2, label %_llgo_1
 
 _llgo_1:                                          ; preds = %_llgo_0
-  store i1 true, ptr @"init$guard", align 1
+  store i1 true, ptr @"main.init$guard", align 1
   br label %_llgo_2
 
 _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-define i64 @max(i64 %0, i64 %1) {
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call i64 @main.max(i64 1, i64 2)
+  ret void
+}
+
+define i64 @main.max(i64 %0, i64 %1) {
 _llgo_0:
   %2 = icmp sgt i64 %0, %1
   br i1 %2, label %_llgo_1, label %_llgo_2
@@ -28,9 +36,4 @@ _llgo_2:                                          ; preds = %_llgo_0
   ret i64 %1
 }
 
-define void @main() {
-_llgo_0:
-  call void @init()
-  %0 = call i64 @max(i64 1, i64 2)
-  ret void
-}
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/importpkg/in.go

@@ -0,0 +1,10 @@
+package main
+
+import "github.com/goplus/llgo/cl/internal/stdio"
+
+var hello = [...]int8{'H', 'e', 'l', 'l', 'o', '\n', 0}
+
+func main() {
+	_ = stdio.Max(2, 100)
+	stdio.Printf(&hello[0])
+}

cl/_testdata/importpkg/out.ll

@@ -0,0 +1,43 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@main.hello = global ptr null
+@"main.init$guard" = global ptr null
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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/stdio.init"()
+  store i8 72, ptr @main.hello, align 1
+  store i8 101, ptr getelementptr inbounds (i8, ptr @main.hello, i64 1), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.hello, i64 2), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.hello, i64 3), align 1
+  store i8 111, ptr getelementptr inbounds (i8, ptr @main.hello, i64 4), align 1
+  store i8 10, ptr getelementptr inbounds (i8, ptr @main.hello, i64 5), align 1
+  store i8 0, ptr getelementptr inbounds (i8, ptr @main.hello, i64 6), align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call i64 @"github.com/goplus/llgo/cl/internal/stdio.Max"(i64 2, i64 100)
+  call void (ptr, ...) @printf(ptr @main.hello)
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/cl/internal/stdio.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare i64 @"github.com/goplus/llgo/cl/internal/stdio.Max"(i64, i64)
+
+declare void @printf(ptr, ...)

cl/_testdata/method/in.go

@@ -0,0 +1,19 @@
+package main
+
+import _ "unsafe"
+
+type T int
+
+func (a T) Add(b T) T {
+	return a + b
+}
+
+//go:linkname printf C.printf
+func printf(format *int8, __llgo_va_list ...any)
+
+var format = [...]int8{'H', 'e', 'l', 'l', 'o', ' ', '%', 'd', '\n', 0}
+
+func main() {
+	a := T(1)
+	printf(&format[0], a.Add(2))
+}

cl/_testdata/method/out.ll

@@ -0,0 +1,54 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@main.format = global ptr null
+@"main.init$guard" = global ptr null
+
+define i64 @"(main.T).Add"(i64 %0, i64 %1) {
+_llgo_0:
+  %2 = add i64 %0, %1
+  ret i64 %2
+}
+
+define i64 @"(*main.T).Add"(ptr %0, i64 %1) {
+_llgo_0:
+  %2 = load i64, ptr %0, align 4
+  %3 = call i64 @"(main.T).Add"(i64 %2, i64 %1)
+  ret i64 %3
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  store i8 72, ptr @main.format, align 1
+  store i8 101, ptr getelementptr inbounds (i8, ptr @main.format, i64 1), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 2), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 3), align 1
+  store i8 111, ptr getelementptr inbounds (i8, ptr @main.format, i64 4), align 1
+  store i8 32, ptr getelementptr inbounds (i8, ptr @main.format, i64 5), align 1
+  store i8 37, ptr getelementptr inbounds (i8, ptr @main.format, i64 6), align 1
+  store i8 100, ptr getelementptr inbounds (i8, ptr @main.format, i64 7), align 1
+  store i8 10, ptr getelementptr inbounds (i8, ptr @main.format, i64 8), align 1
+  store i8 0, ptr getelementptr inbounds (i8, ptr @main.format, i64 9), align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call i64 @"(main.T).Add"(i64 1, i64 2)
+  call void (ptr, ...) @printf(ptr @main.format, i64 %0)
+  ret void
+}
+
+declare void @printf(ptr, ...)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/printf/in.go

@@ -2,7 +2,7 @@ package main
 
 import _ "unsafe"
 
-//go:linkname printf _printf
+//go:linkname printf C.printf
 func printf(format *int8, __llgo_va_list ...any)
 
 var hello = [...]int8{'H', 'e', 'l', 'l', 'o', '\n', 0}

cl/_testdata/printf/out.ll

@@ -1,34 +1,37 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-@"init$guard" = global ptr null
-@hello = global ptr null
+@main.hello = global ptr null
+@"main.init$guard" = global ptr null
 
-define void @init() {
+define void @main.init() {
 _llgo_0:
-  %0 = load i1, ptr @"init$guard", align 1
+  %0 = load i1, ptr @"main.init$guard", align 1
   br i1 %0, label %_llgo_2, label %_llgo_1
 
 _llgo_1:                                          ; preds = %_llgo_0
-  store i1 true, ptr @"init$guard", align 1
-  store i8 72, ptr @hello, align 1
-  store i8 101, ptr getelementptr inbounds (i8, ptr @hello, i64 1), align 1
-  store i8 108, ptr getelementptr inbounds (i8, ptr @hello, i64 2), align 1
-  store i8 108, ptr getelementptr inbounds (i8, ptr @hello, i64 3), align 1
-  store i8 111, ptr getelementptr inbounds (i8, ptr @hello, i64 4), align 1
-  store i8 10, ptr getelementptr inbounds (i8, ptr @hello, i64 5), align 1
-  store i8 0, ptr getelementptr inbounds (i8, ptr @hello, i64 6), align 1
+  store i1 true, ptr @"main.init$guard", align 1
+  store i8 72, ptr @main.hello, align 1
+  store i8 101, ptr getelementptr inbounds (i8, ptr @main.hello, i64 1), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.hello, i64 2), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.hello, i64 3), align 1
+  store i8 111, ptr getelementptr inbounds (i8, ptr @main.hello, i64 4), align 1
+  store i8 10, ptr getelementptr inbounds (i8, ptr @main.hello, i64 5), align 1
+  store i8 0, ptr getelementptr inbounds (i8, ptr @main.hello, i64 6), align 1
   br label %_llgo_2
 
 _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
 
-declare void @printf(ptr, ...)
-
 define void @main() {
 _llgo_0:
-  call void @init()
-  call void (ptr, ...) @printf(ptr @hello)
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  call void (ptr, ...) @printf(ptr @main.hello)
   ret void
 }
+
+declare void @printf(ptr, ...)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/printval/in.go

@@ -0,0 +1,12 @@
+package main
+
+import _ "unsafe"
+
+//go:linkname printf C.printf
+func printf(format *int8, __llgo_va_list ...any)
+
+var format = [...]int8{'H', 'e', 'l', 'l', 'o', ' ', '%', 'd', '\n', 0}
+
+func main() {
+	printf(&format[0], 100)
+}

cl/_testdata/printval/out.ll

@@ -0,0 +1,40 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@main.format = global ptr null
+@"main.init$guard" = global ptr null
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  store i8 72, ptr @main.format, align 1
+  store i8 101, ptr getelementptr inbounds (i8, ptr @main.format, i64 1), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 2), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 3), align 1
+  store i8 111, ptr getelementptr inbounds (i8, ptr @main.format, i64 4), align 1
+  store i8 32, ptr getelementptr inbounds (i8, ptr @main.format, i64 5), align 1
+  store i8 37, ptr getelementptr inbounds (i8, ptr @main.format, i64 6), align 1
+  store i8 100, ptr getelementptr inbounds (i8, ptr @main.format, i64 7), align 1
+  store i8 10, ptr getelementptr inbounds (i8, ptr @main.format, i64 8), align 1
+  store i8 0, ptr getelementptr inbounds (i8, ptr @main.format, i64 9), align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  call void (ptr, ...) @printf(ptr @main.format, i64 100)
+  ret void
+}
+
+declare void @printf(ptr, ...)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/ptrmthd/in.go

@@ -0,0 +1,19 @@
+package main
+
+import _ "unsafe"
+
+//go:linkname printf C.printf
+func printf(format *int8, __llgo_va_list ...any)
+
+type T int8
+
+func (f *T) Print(v int) {
+	printf((*int8)(f), v)
+}
+
+var format = [...]T{'H', 'e', 'l', 'l', 'o', ' ', '%', 'd', '\n', 0}
+
+func main() {
+	f := &format[0]
+	f.Print(100)
+}

cl/_testdata/ptrmthd/out.ll

@@ -0,0 +1,46 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@main.format = global ptr null
+@"main.init$guard" = global ptr null
+
+define void @"(*main.T).Print"(ptr %0, i64 %1) {
+_llgo_0:
+  call void (ptr, ...) @printf(ptr %0, i64 %1)
+  ret void
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  store i8 72, ptr @main.format, align 1
+  store i8 101, ptr getelementptr inbounds (i8, ptr @main.format, i64 1), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 2), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 3), align 1
+  store i8 111, ptr getelementptr inbounds (i8, ptr @main.format, i64 4), align 1
+  store i8 32, ptr getelementptr inbounds (i8, ptr @main.format, i64 5), align 1
+  store i8 37, ptr getelementptr inbounds (i8, ptr @main.format, i64 6), align 1
+  store i8 100, ptr getelementptr inbounds (i8, ptr @main.format, i64 7), align 1
+  store i8 10, ptr getelementptr inbounds (i8, ptr @main.format, i64 8), align 1
+  store i8 0, ptr getelementptr inbounds (i8, ptr @main.format, i64 9), align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  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
+}
+
+declare void @printf(ptr, ...)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/untyped/in.go

@@ -0,0 +1,11 @@
+package main
+
+const c = 100
+
+var a float64 = 1
+
+func main() {
+	if c > 100 {
+		a = 0
+	}
+}

cl/_testdata/untyped/out.ll

@@ -0,0 +1,35 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@main.a = global ptr null
+@"main.init$guard" = global ptr null
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  store double 1.000000e+00, ptr @main.a, align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  br i1 false, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store double 0.000000e+00, ptr @main.a, align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testdata/varinit/out.ll

@@ -1,17 +1,17 @@
 ; ModuleID = 'main'
 source_filename = "main"
 
-@"init$guard" = global ptr null
-@a = global ptr null
+@main.a = global ptr null
+@"main.init$guard" = global ptr null
 
-define void @init() {
+define void @main.init() {
 _llgo_0:
-  %0 = load i1, ptr @"init$guard", align 1
+  %0 = load i1, ptr @"main.init$guard", align 1
   br i1 %0, label %_llgo_2, label %_llgo_1
 
 _llgo_1:                                          ; preds = %_llgo_0
-  store i1 true, ptr @"init$guard", align 1
-  store i64 100, ptr @a, align 4
+  store i1 true, ptr @"main.init$guard", align 1
+  store i64 100, ptr @main.a, align 4
   br label %_llgo_2
 
 _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
@@ -20,10 +20,13 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
 
 define void @main() {
 _llgo_0:
-  call void @init()
-  %0 = load i64, ptr @a, align 4
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = load i64, ptr @main.a, align 4
   %1 = add i64 %0, 1
-  store i64 %1, ptr @a, align 4
-  %2 = load i64, ptr @a, align 4
+  store i64 %1, ptr @main.a, align 4
+  %2 = load i64, ptr @main.a, align 4
   ret void
 }
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/alloca/in.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func main() {
+	s := c.Str("Hi\n")
+	s2 := c.Alloca(4)
+	c.Memcpy(s2, c.Pointer(s), 4)
+	c.Printf(c.Str("%s"), s2)
+}

cl/_testrt/alloca/out.ll

@@ -0,0 +1,35 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [4 x i8] c"Hi\0A\00", align 1
+@1 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = alloca i8, i64 4, align 1
+  %1 = call ptr @memcpy(ptr %0, ptr @0, i64 4)
+  %2 = call i32 (ptr, ...) @printf(ptr @1, ptr %0)
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @memcpy(ptr, ptr, i64)
+
+declare i32 @printf(ptr, ...)

cl/_testrt/allocstr/in.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func hello() string {
+	return "Hello world\n"
+}
+
+func main() {
+	c.Printf(c.AllocaCStr(hello()))
+}

cl/_testrt/allocstr/out.ll

@@ -0,0 +1,49 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [13 x i8] c"Hello world\0A\00", align 1
+
+define %"github.com/goplus/llgo/internal/runtime.String" @main.hello() {
+_llgo_0:
+  %0 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @0, i64 12)
+  ret %"github.com/goplus/llgo/internal/runtime.String" %0
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call %"github.com/goplus/llgo/internal/runtime.String" @main.hello()
+  %1 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %0)
+  %2 = add i64 %1, 1
+  %3 = alloca i8, i64 %2, align 1
+  %4 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %3, %"github.com/goplus/llgo/internal/runtime.String" %0)
+  %5 = call i32 (ptr, ...) @printf(ptr %4)
+  ret void
+}
+
+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

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func incVal(a any) int {
+	return a.(int) + 1
+}
+
+func main() {
+	c.Printf(c.Str("Hello %d\n"), incVal(100))
+}

cl/_testrt/any/out.ll

@@ -0,0 +1,49 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.iface" = type { ptr, ptr }
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [10 x i8] c"Hello %d\0A\00", align 1
+
+define i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.iface" %0) {
+_llgo_0:
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
+  %2 = call i64 @"github.com/goplus/llgo/internal/runtime.I2Int"(%"github.com/goplus/llgo/internal/runtime.iface" %0, ptr %1)
+  %3 = add i64 %2, 1
+  ret i64 %3
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
+  %1 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %0, i64 100)
+  %2 = call i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.iface" %1)
+  %3 = call i32 (ptr, ...) @printf(ptr @0, i64 %2)
+  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 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

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+var a int64 = 1<<63 - 1
+var b int64 = -1 << 63
+var n uint64 = 1<<64 - 1
+
+func main() {
+	var s = []int{1, 2, 3, 4}
+	var a = [...]int{1, 2, 3, 4}
+
+	out(len(s))
+	out(len([]int{1, 2, 3, 4}))
+	out(len(a))
+	out(len(&a))
+	out(len([4]int{1, 2, 3, 4}))
+
+	out(cap(s))
+	out(cap(a))
+	out(cap(&a))
+
+	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]))
+
+	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]))
+
+	string_len("hello")
+	string_len("hello"[1:])
+	string_len("hello"[1:2])
+	string_len("hello"[5:])
+}
+
+func string_len(s string) {
+	out(len(s))
+}
+
+func out(n int) {
+	c.Printf(c.Str("%d\n"), n)
+}

cl/_testrt/builtin/out.ll

@@ -0,0 +1,174 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+
+@main.a = global ptr null
+@main.b = global ptr null
+@"main.init$guard" = global ptr null
+@main.n = global ptr null
+@0 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+@1 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+@2 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+@3 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+@4 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  store i64 9223372036854775807, ptr @main.a, align 4
+  store i64 -9223372036854775808, ptr @main.b, align 4
+  store i64 -1, ptr @main.n, align 4
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %1 = getelementptr inbounds i64, ptr %0, i64 0
+  store i64 1, ptr %1, align 4
+  %2 = getelementptr inbounds i64, ptr %0, i64 1
+  store i64 2, ptr %2, align 4
+  %3 = getelementptr inbounds i64, ptr %0, i64 2
+  store i64 3, ptr %3, align 4
+  %4 = getelementptr inbounds i64, ptr %0, i64 3
+  store i64 4, ptr %4, align 4
+  %5 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %0, i64 8, i64 4, i64 0, i64 4, i64 4)
+  %6 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %7 = getelementptr inbounds i64, ptr %6, i64 0
+  %8 = getelementptr inbounds i64, ptr %6, i64 1
+  %9 = getelementptr inbounds i64, ptr %6, i64 2
+  %10 = getelementptr inbounds i64, ptr %6, i64 3
+  store i64 1, ptr %7, align 4
+  store i64 2, ptr %8, align 4
+  store i64 3, ptr %9, align 4
+  store i64 4, ptr %10, align 4
+  %11 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  call void @main.out(i64 %11)
+  %12 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %13 = getelementptr inbounds i64, ptr %12, i64 0
+  store i64 1, ptr %13, align 4
+  %14 = getelementptr inbounds i64, ptr %12, i64 1
+  store i64 2, ptr %14, align 4
+  %15 = getelementptr inbounds i64, ptr %12, i64 2
+  store i64 3, ptr %15, align 4
+  %16 = getelementptr inbounds i64, ptr %12, i64 3
+  store i64 4, ptr %16, align 4
+  %17 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %12, i64 8, i64 4, i64 0, i64 4, i64 4)
+  %18 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %17)
+  call void @main.out(i64 %18)
+  call void @main.out(i64 4)
+  call void @main.out(i64 4)
+  call void @main.out(i64 4)
+  %19 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  call void @main.out(i64 %19)
+  call void @main.out(i64 4)
+  call void @main.out(i64 4)
+  %20 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %21 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %22 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %23 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %22, i64 8, i64 %20, i64 1, i64 %21, i64 %20)
+  %24 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %23)
+  call void @main.out(i64 %24)
+  %25 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %26 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %27 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %28 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %27, i64 8, i64 %25, i64 1, i64 %26, i64 %25)
+  %29 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %28)
+  call void @main.out(i64 %29)
+  %30 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %31 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %32 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %31, i64 8, i64 %30, i64 1, i64 2, i64 %30)
+  %33 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %32)
+  call void @main.out(i64 %33)
+  %34 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %35 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %36 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %35, i64 8, i64 %34, i64 1, i64 2, i64 %34)
+  %37 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %36)
+  call void @main.out(i64 %37)
+  %38 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %39 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %40 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %39, i64 8, i64 %38, i64 1, i64 2, i64 2)
+  %41 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %40)
+  call void @main.out(i64 %41)
+  %42 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %43 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %44 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %43, i64 8, i64 %42, i64 1, i64 2, i64 2)
+  %45 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %44)
+  call void @main.out(i64 %45)
+  %46 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %6, i64 8, i64 4, i64 1, i64 4, i64 4)
+  %47 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"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 %6, i64 8, i64 4, i64 1, i64 4, i64 4)
+  %49 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"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 %6, i64 8, i64 4, i64 1, i64 2, i64 4)
+  %51 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"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 %6, i64 8, i64 4, i64 1, i64 2, i64 4)
+  %53 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"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 %6, i64 8, i64 4, i64 1, i64 2, i64 2)
+  %55 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"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 %6, i64 8, i64 4, i64 1, i64 2, i64 2)
+  %57 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %56)
+  call void @main.out(i64 %57)
+  %58 = 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" %58)
+  %59 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @1, i64 5)
+  %60 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %59)
+  %61 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %59, i64 1, i64 %60)
+  call void @main.string_len(%"github.com/goplus/llgo/internal/runtime.String" %61)
+  %62 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @2, i64 5)
+  %63 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %62, i64 1, i64 2)
+  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 @3, i64 5)
+  %65 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %64)
+  %66 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %64, i64 5, i64 %65)
+  call void @main.string_len(%"github.com/goplus/llgo/internal/runtime.String" %66)
+  ret void
+}
+
+define void @main.out(i64 %0) {
+_llgo_0:
+  %1 = call i32 (ptr, ...) @printf(ptr @4, i64 %0)
+  ret void
+}
+
+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
+}
+
+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.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice")
+
+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 %"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, ...)

cl/_testrt/concat/in.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func concat(args ...string) (ret string) {
+	for _, v := range args {
+		ret += v
+	}
+	return
+}
+
+func main() {
+	result := concat("Hello", " ", "World")
+	c.Fprintf(c.Stderr, c.Str("Hi, %s\n"), c.AllocaCStr(result))
+}

cl/_testrt/concat/out.ll

@@ -0,0 +1,106 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@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
+@__stderrp = external global ptr
+@4 = 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
+  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
+
+_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
+  br label %_llgo_1
+
+_llgo_3:                                          ; preds = %_llgo_1
+  ret %"github.com/goplus/llgo/internal/runtime.String" %11
+}
+
+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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 48)
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i64 0
+  %2 = 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" %2, ptr %1, align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i64 1
+  %4 = 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" %4, ptr %3, align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i64 2
+  %6 = 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" %6, ptr %5, align 8
+  %7 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %0, i64 16, i64 3, i64 0, i64 3, i64 3)
+  %8 = call %"github.com/goplus/llgo/internal/runtime.String" @main.concat(%"github.com/goplus/llgo/internal/runtime.Slice" %7)
+  %9 = load ptr, ptr @__stderrp, align 8
+  %10 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %8)
+  %11 = add i64 %10, 1
+  %12 = alloca i8, i64 %11, align 1
+  %13 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %12, %"github.com/goplus/llgo/internal/runtime.String" %8)
+  %14 = call i32 (ptr, ptr, ...) @fprintf(ptr %9, ptr @4, ptr %13)
+  ret void
+}
+
+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 %"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/in.go

@@ -0,0 +1,13 @@
+package main
+
+import _ "unsafe"
+
+//go:linkname cstr llgo.cstr
+func cstr(string) *int8
+
+//go:linkname printf C.printf
+func printf(format *int8, __llgo_va_list ...any)
+
+func main() {
+	printf(cstr("Hello, world\n"))
+}

cl/_testrt/cstr/out.ll

@@ -0,0 +1,30 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [14 x i8] c"Hello, world\0A\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  call void (ptr, ...) @printf(ptr @0)
+  ret void
+}
+
+declare void @printf(ptr, ...)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/cvar/in.go

@@ -0,0 +1,19 @@
+package main
+
+import _ "unsafe"
+
+//go:linkname barX _bar_x
+var barX struct {
+	Arr       [16]int8
+	Callbacks [2]func()
+}
+
+//go:linkname barY _bar_y
+var barY struct {
+	Arr [16]int8
+}
+
+func main() {
+	_ = barX
+	_ = barY
+}

cl/_testrt/cvar/out.ll

@@ -0,0 +1,30 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@_bar_x = external global ptr
+@_bar_y = external global ptr
+@"main.init$guard" = global ptr null
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = load { [16 x i8], [2 x ptr] }, ptr @_bar_x, align 8
+  %1 = load { [16 x i8] }, ptr @_bar_y, align 1
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/fprintf/in.go

@@ -0,0 +1,16 @@
+package main
+
+import "unsafe"
+
+//go:linkname cstr llgo.cstr
+func cstr(string) *int8
+
+//go:linkname stderr __stderrp
+var stderr unsafe.Pointer
+
+//go:linkname fprintf C.fprintf
+func fprintf(fp unsafe.Pointer, format *int8, __llgo_va_list ...any)
+
+func main() {
+	fprintf(stderr, cstr("Hello %d\n"), 100)
+}

cl/_testrt/fprintf/out.ll

@@ -0,0 +1,32 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@__stderrp = external global ptr
+@0 = private unnamed_addr constant [10 x i8] c"Hello %d\0A\00", align 1
+
+declare void @fprintf(ptr, ptr, ...)
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = load ptr, ptr @__stderrp, align 8
+  call void (ptr, ptr, ...) @fprintf(ptr %0, ptr @0, i64 100)
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/gblarray/in.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/abi"
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func Basic(kind abi.Kind) *abi.Type {
+	return basicTypes[kind]
+}
+
+var (
+	basicTypes = [...]*abi.Type{
+		abi.String: basicType(abi.String),
+	}
+	sizeBasicTypes = [...]uintptr{
+		abi.String: 16,
+	}
+)
+
+func basicType(kind abi.Kind) *abi.Type {
+	return &abi.Type{
+		Size_: sizeBasicTypes[kind],
+		Hash:  uint32(kind),
+		Kind_: uint8(kind),
+	}
+}
+
+func main() {
+	t := Basic(abi.String)
+	c.Printf(c.Str("Kind: %d, Size: %d\n"), int(t.Kind_), t.Size_)
+}

cl/_testrt/gblarray/out.ll

@@ -0,0 +1,71 @@
+; 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 }
+
+@main.basicTypes = global ptr null
+@"main.init$guard" = global ptr null
+@main.sizeBasicTypes = global ptr null
+@0 = private unnamed_addr constant [20 x i8] c"Kind: %d, Size: %d\0A\00", align 1
+
+define ptr @main.Basic(i64 %0) {
+_llgo_0:
+  %1 = getelementptr inbounds ptr, ptr @main.basicTypes, i64 %0
+  %2 = load ptr, ptr %1, align 8
+  ret ptr %2
+}
+
+define ptr @main.basicType(i64 %0) {
+_llgo_0:
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 56)
+  %2 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %1, i32 0, i32 0
+  %3 = getelementptr inbounds i64, ptr @main.sizeBasicTypes, i64 %0
+  %4 = load i64, ptr %3, align 4
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %1, i32 0, i32 2
+  %6 = trunc i64 %0 to i32
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %1, i32 0, i32 6
+  %8 = trunc i64 %0 to i8
+  store i64 %4, ptr %2, align 4
+  store i32 %6, ptr %5, align 4
+  store i8 %8, ptr %7, align 1
+  ret ptr %1
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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/internal/abi.init"()
+  store i64 16, ptr getelementptr inbounds (i64, ptr @main.sizeBasicTypes, i64 24), align 4
+  %1 = call ptr @main.basicType(i64 24)
+  store ptr %1, ptr getelementptr inbounds (ptr, ptr @main.basicTypes, i64 24), align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call ptr @main.Basic(i64 24)
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %0, i32 0, i32 6
+  %2 = load i8, ptr %1, align 1
+  %3 = sext i8 %2 to i64
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %0, i32 0, i32 0
+  %5 = load i64, ptr %4, align 4
+  %6 = call i32 (ptr, ...) @printf(ptr @0, i64 %3, i64 %5)
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
+
+declare void @"github.com/goplus/llgo/internal/abi.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare i32 @printf(ptr, ...)

cl/_testrt/hello/in.go

@@ -0,0 +1,10 @@
+package main
+
+import "github.com/goplus/llgo/cl/internal/libc"
+
+var format = [...]int8{'H', 'e', 'l', 'l', 'o', ' ', '%', 'd', '\n', 0}
+
+func main() {
+	sfmt := &format[0]
+	libc.Printf(sfmt, libc.Strlen(sfmt))
+}

cl/_testrt/hello/out.ll

@@ -0,0 +1,43 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@main.format = global ptr null
+@"main.init$guard" = global ptr null
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  store i8 72, ptr @main.format, align 1
+  store i8 101, ptr getelementptr inbounds (i8, ptr @main.format, i64 1), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 2), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 3), align 1
+  store i8 111, ptr getelementptr inbounds (i8, ptr @main.format, i64 4), align 1
+  store i8 32, ptr getelementptr inbounds (i8, ptr @main.format, i64 5), align 1
+  store i8 37, ptr getelementptr inbounds (i8, ptr @main.format, i64 6), align 1
+  store i8 100, ptr getelementptr inbounds (i8, ptr @main.format, i64 7), align 1
+  store i8 10, ptr getelementptr inbounds (i8, ptr @main.format, i64 8), align 1
+  store i8 0, ptr getelementptr inbounds (i8, ptr @main.format, i64 9), align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call i32 @strlen(ptr @main.format)
+  call void (ptr, ...) @printf(ptr @main.format, i32 %0)
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare i32 @strlen(ptr)
+
+declare void @printf(ptr, ...)

cl/_testrt/index/in.go

@@ -0,0 +1,25 @@
+package main
+
+import "github.com/goplus/llgo/internal/runtime/c"
+
+type point struct {
+	x int
+	y int
+}
+
+func main() {
+	a := [...]point{{1, 2}, {3, 4}, {5, 6}}[2]
+	c.Printf(c.Str("%d %d\n"), a.x, a.y)
+
+	b := [...][2]int{[2]int{1, 2}, [2]int{3, 4}}[1]
+	c.Printf(c.Str("%d %d\n"), b[0], b[1])
+
+	var i int = 2
+	n := [...]int{1, 2, 3, 4, 5}[i]
+	c.Printf(c.Str("%d\n"), n)
+	c.Printf(c.Str("%d\n"), [...]int{1, 2, 3, 4, 5}[i])
+
+	s := "123456"
+	c.Printf(c.Str("%c\n"), s[i])
+	c.Printf(c.Str("%c\n"), "123456"[1])
+}

cl/_testrt/index/out.ll

@@ -0,0 +1,138 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%main.point = type { i64, i64 }
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [7 x i8] c"%d %d\0A\00", align 1
+@1 = private unnamed_addr constant [7 x i8] c"%d %d\0A\00", align 1
+@2 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@3 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@4 = private unnamed_addr constant [4 x i8] c"%c\0A\00", align 1
+@5 = private unnamed_addr constant [7 x i8] c"123456\00", align 1
+@6 = private unnamed_addr constant [4 x i8] c"%c\0A\00", align 1
+@7 = private unnamed_addr constant [7 x i8] c"123456\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = alloca %main.point, align 8
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %0, i64 16)
+  %2 = alloca [3 x %main.point], align 8
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %2, i64 48)
+  %4 = getelementptr inbounds %main.point, ptr %3, i64 0
+  %5 = getelementptr inbounds %main.point, ptr %4, i32 0, i32 0
+  %6 = getelementptr inbounds %main.point, ptr %4, i32 0, i32 1
+  %7 = getelementptr inbounds %main.point, ptr %3, i64 1
+  %8 = getelementptr inbounds %main.point, ptr %7, i32 0, i32 0
+  %9 = getelementptr inbounds %main.point, ptr %7, i32 0, i32 1
+  %10 = getelementptr inbounds %main.point, ptr %3, i64 2
+  %11 = getelementptr inbounds %main.point, ptr %10, i32 0, i32 0
+  %12 = getelementptr inbounds %main.point, ptr %10, i32 0, i32 1
+  store i64 1, ptr %5, align 4
+  store i64 2, ptr %6, align 4
+  store i64 3, ptr %8, align 4
+  store i64 4, ptr %9, align 4
+  store i64 5, ptr %11, align 4
+  store i64 6, ptr %12, align 4
+  %13 = load [3 x %main.point], ptr %3, align 4
+  %14 = getelementptr inbounds %main.point, ptr %3, i64 2
+  %15 = load %main.point, ptr %14, align 4
+  store %main.point %15, ptr %1, align 4
+  %16 = getelementptr inbounds %main.point, ptr %1, i32 0, i32 0
+  %17 = load i64, ptr %16, align 4
+  %18 = getelementptr inbounds %main.point, ptr %1, i32 0, i32 1
+  %19 = load i64, ptr %18, align 4
+  %20 = call i32 (ptr, ...) @printf(ptr @0, i64 %17, i64 %19)
+  %21 = alloca [2 x i64], align 8
+  %22 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %21, i64 16)
+  %23 = alloca [2 x [2 x i64]], align 8
+  %24 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %23, i64 32)
+  %25 = getelementptr inbounds [2 x i64], ptr %24, i64 0
+  %26 = getelementptr inbounds i64, ptr %25, i64 0
+  %27 = getelementptr inbounds i64, ptr %25, i64 1
+  %28 = getelementptr inbounds [2 x i64], ptr %24, i64 1
+  %29 = getelementptr inbounds i64, ptr %28, i64 0
+  %30 = getelementptr inbounds i64, ptr %28, i64 1
+  store i64 1, ptr %26, align 4
+  store i64 2, ptr %27, align 4
+  store i64 3, ptr %29, align 4
+  store i64 4, ptr %30, align 4
+  %31 = load [2 x [2 x i64]], ptr %24, align 4
+  %32 = getelementptr inbounds [2 x i64], ptr %24, i64 1
+  %33 = load [2 x i64], ptr %32, align 4
+  store [2 x i64] %33, ptr %22, align 4
+  %34 = getelementptr inbounds i64, ptr %22, i64 0
+  %35 = load i64, ptr %34, align 4
+  %36 = getelementptr inbounds i64, ptr %22, i64 1
+  %37 = load i64, ptr %36, align 4
+  %38 = call i32 (ptr, ...) @printf(ptr @1, i64 %35, i64 %37)
+  %39 = alloca [5 x i64], align 8
+  %40 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %39, i64 40)
+  %41 = getelementptr inbounds i64, ptr %40, i64 0
+  %42 = getelementptr inbounds i64, ptr %40, i64 1
+  %43 = getelementptr inbounds i64, ptr %40, i64 2
+  %44 = getelementptr inbounds i64, ptr %40, i64 3
+  %45 = getelementptr inbounds i64, ptr %40, i64 4
+  store i64 1, ptr %41, align 4
+  store i64 2, ptr %42, align 4
+  store i64 3, ptr %43, align 4
+  store i64 4, ptr %44, align 4
+  store i64 5, ptr %45, align 4
+  %46 = load [5 x i64], ptr %40, align 4
+  %47 = getelementptr inbounds i64, ptr %40, i64 2
+  %48 = load i64, ptr %47, align 4
+  %49 = call i32 (ptr, ...) @printf(ptr @2, i64 %48)
+  %50 = alloca [5 x i64], align 8
+  %51 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %50, i64 40)
+  %52 = getelementptr inbounds i64, ptr %51, i64 0
+  %53 = getelementptr inbounds i64, ptr %51, i64 1
+  %54 = getelementptr inbounds i64, ptr %51, i64 2
+  %55 = getelementptr inbounds i64, ptr %51, i64 3
+  %56 = getelementptr inbounds i64, ptr %51, i64 4
+  store i64 1, ptr %52, align 4
+  store i64 2, ptr %53, align 4
+  store i64 3, ptr %54, align 4
+  store i64 4, ptr %55, align 4
+  store i64 5, ptr %56, align 4
+  %57 = load [5 x i64], ptr %51, align 4
+  %58 = getelementptr inbounds i64, ptr %51, i64 2
+  %59 = load i64, ptr %58, align 4
+  %60 = call i32 (ptr, ...) @printf(ptr @3, i64 %59)
+  %61 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @5, i64 6)
+  %62 = call ptr @"github.com/goplus/llgo/internal/runtime.StringData"(%"github.com/goplus/llgo/internal/runtime.String" %61)
+  %63 = getelementptr inbounds i8, ptr %62, i64 2
+  %64 = load i8, ptr %63, align 1
+  %65 = call i32 (ptr, ...) @printf(ptr @4, i8 %64)
+  %66 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @7, i64 6)
+  %67 = call ptr @"github.com/goplus/llgo/internal/runtime.StringData"(%"github.com/goplus/llgo/internal/runtime.String" %66)
+  %68 = getelementptr inbounds i8, ptr %67, i64 1
+  %69 = load i8, ptr %68, align 1
+  %70 = call i32 (ptr, ...) @printf(ptr @6, i8 %69)
+  ret void
+}
+
+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/in.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func genInts(n int, gen func() c.Int) []c.Int {
+	a := make([]c.Int, n)
+	for i := range a {
+		a[i] = gen()
+	}
+	return a
+}
+
+func main() {
+	a := genInts(5, c.Rand)
+	for _, v := range a {
+		c.Printf(c.Str("%d\n"), v)
+	}
+}

cl/_testrt/intgen/out.ll

@@ -0,0 +1,90 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+
+define %"github.com/goplus/llgo/internal/runtime.Slice" @main.genInts(i64 %0, { ptr, ptr } %1) {
+_llgo_0:
+  %2 = mul i64 %0, 4
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 %2)
+  %4 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice"(ptr %3, i64 %0, i64 %0)
+  %5 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %4)
+  br label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
+  %6 = phi i64 [ -1, %_llgo_0 ], [ %7, %_llgo_2 ]
+  %7 = add i64 %6, 1
+  %8 = icmp slt i64 %7, %5
+  br i1 %8, label %_llgo_2, label %_llgo_3
+
+_llgo_2:                                          ; preds = %_llgo_1
+  %9 = extractvalue { ptr, ptr } %1, 0
+  %10 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %4)
+  %11 = getelementptr inbounds i32, ptr %10, i64 %7
+  store i32 0, ptr %11, align 4
+  br label %_llgo_1
+
+_llgo_3:                                          ; preds = %_llgo_1
+  ret %"github.com/goplus/llgo/internal/runtime.Slice" %4
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = alloca { ptr, ptr }, align 8
+  %1 = getelementptr inbounds { ptr, ptr }, ptr %0, i32 0, i32 0
+  store ptr @rand, ptr %1, align 8
+  %2 = getelementptr inbounds { ptr, ptr }, ptr %0, i32 0, i32 1
+  store ptr null, ptr %2, align 8
+  %3 = load { ptr, ptr }, ptr %0, align 8
+  %4 = call %"github.com/goplus/llgo/internal/runtime.Slice" @main.genInts(i64 5, { ptr, ptr } %3)
+  %5 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %4)
+  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
+
+_llgo_2:                                          ; preds = %_llgo_1
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %4)
+  %10 = getelementptr inbounds i32, ptr %9, i64 %7
+  %11 = load i32, ptr %10, align 4
+  %12 = call i32 (ptr, ...) @printf(ptr @0, i32 %11)
+  br label %_llgo_1
+
+_llgo_3:                                          ; preds = %_llgo_1
+  ret void
+}
+
+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.init"()
+
+declare i32 @rand()
+
+declare i32 @printf(ptr, ...)

cl/_testrt/linkname/in.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	_ "unsafe"
+
+	"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)
+
+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"))
+}

cl/_testrt/linkname/out.ll

@@ -0,0 +1,38 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [2 x i8] c"a\00", align 1
+@1 = private unnamed_addr constant [2 x i8] c"b\00", align 1
+@2 = private unnamed_addr constant [2 x i8] c"c\00", align 1
+@3 = private unnamed_addr constant [2 x i8] c"d\00", align 1
+@4 = private unnamed_addr constant [2 x i8] c"1\00", align 1
+@5 = private unnamed_addr constant [2 x i8] c"2\00", align 1
+@6 = private unnamed_addr constant [2 x i8] c"3\00", align 1
+@7 = private unnamed_addr constant [2 x i8] c"4\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  call void @"github.com/goplus/llgo/cl/internal/linktarget.F"(ptr @0, ptr @1, ptr @2, ptr @3)
+  call void @"github.com/goplus/llgo/cl/internal/linktarget.F"(ptr @4, ptr @5, ptr @6, ptr @7)
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/cl/internal/linktarget.F"(ptr, ptr, ptr, ptr)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/map/in.go

@@ -0,0 +1,13 @@
+package main
+
+/*
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+*/
+
+func main() {
+	a := map[int]int{23: 100, 7: 29}
+	_ = a
+	// c.Printf(c.Str("Hello %d\n"), a[23])
+}

cl/_testrt/map/out.ll

@@ -0,0 +1,29 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.MakeSmallMap"()
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.MakeSmallMap"()

cl/_testrt/panic/in.go

@@ -0,0 +1,5 @@
+package main
+
+func main() {
+	panic("panic message")
+}

cl/_testrt/panic/out.ll

@@ -0,0 +1,39 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+%"github.com/goplus/llgo/internal/runtime.iface" = type { ptr, ptr }
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [14 x i8] c"panic message\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @0, i64 13)
+  %1 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %0)
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %1)
+  unreachable
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr, i64)
+
+declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface")

cl/_testrt/qsort/in.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+//go:linkname qsort C.qsort
+func qsort(base c.Pointer, count, elem uintptr, compar func(a, b c.Pointer) c.Int)
+
+func main() {
+	a := [...]int{100, 8, 23, 2, 7}
+	qsort(c.Pointer(&a[0]), 5, unsafe.Sizeof(0), func(a, b c.Pointer) c.Int {
+		return c.Int(*(*int)(a) - *(*int)(b))
+	})
+	for _, v := range a {
+		c.Printf(c.Str("%d\n"), v)
+	}
+}

cl/_testrt/qsort/out.ll

@@ -0,0 +1,71 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 40)
+  %1 = getelementptr inbounds i64, ptr %0, i64 0
+  %2 = getelementptr inbounds i64, ptr %0, i64 1
+  %3 = getelementptr inbounds i64, ptr %0, i64 2
+  %4 = getelementptr inbounds i64, ptr %0, i64 3
+  %5 = getelementptr inbounds i64, ptr %0, i64 4
+  store i64 100, ptr %1, align 4
+  store i64 8, ptr %2, align 4
+  store i64 23, ptr %3, align 4
+  store i64 2, ptr %4, align 4
+  store i64 7, ptr %5, align 4
+  %6 = getelementptr inbounds i64, ptr %0, i64 0
+  call void @qsort(ptr %6, i64 5, i64 8, ptr @"main.main$1")
+  %7 = load [5 x i64], ptr %0, align 4
+  br label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
+  %8 = phi i64 [ -1, %_llgo_0 ], [ %9, %_llgo_2 ]
+  %9 = add i64 %8, 1
+  %10 = icmp slt i64 %9, 5
+  br i1 %10, label %_llgo_2, label %_llgo_3
+
+_llgo_2:                                          ; preds = %_llgo_1
+  %11 = getelementptr inbounds i64, ptr %0, i64 %9
+  %12 = load i64, ptr %11, align 4
+  %13 = call i32 (ptr, ...) @printf(ptr @0, i64 %12)
+  br label %_llgo_1
+
+_llgo_3:                                          ; preds = %_llgo_1
+  ret void
+}
+
+declare void @qsort(ptr, i64, i64, ptr)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
+
+define i32 @"main.main$1"(ptr %0, ptr %1) {
+_llgo_0:
+  %2 = load i64, ptr %0, align 4
+  %3 = load i64, ptr %1, align 4
+  %4 = sub i64 %2, %3
+  %5 = trunc i64 %4 to i32
+  ret i32 %5
+}
+
+declare i32 @printf(ptr, ...)

cl/_testrt/strlen/in.go

@@ -0,0 +1,17 @@
+package main
+
+import "C"
+import _ "unsafe"
+
+//go:linkname printf C.printf
+func printf(format *int8, __llgo_va_list ...any)
+
+//go:linkname strlen C.strlen
+func strlen(str *int8) C.int
+
+var format = [...]int8{'H', 'e', 'l', 'l', 'o', ' ', '%', 'd', '\n', 0}
+
+func main() {
+	sfmt := &format[0]
+	printf(sfmt, strlen(sfmt))
+}

cl/_testrt/strlen/out.ll

@@ -0,0 +1,43 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@main.format = global ptr null
+@"main.init$guard" = global ptr null
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  store i8 72, ptr @main.format, align 1
+  store i8 101, ptr getelementptr inbounds (i8, ptr @main.format, i64 1), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 2), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 3), align 1
+  store i8 111, ptr getelementptr inbounds (i8, ptr @main.format, i64 4), align 1
+  store i8 32, ptr getelementptr inbounds (i8, ptr @main.format, i64 5), align 1
+  store i8 37, ptr getelementptr inbounds (i8, ptr @main.format, i64 6), align 1
+  store i8 100, ptr getelementptr inbounds (i8, ptr @main.format, i64 7), align 1
+  store i8 10, ptr getelementptr inbounds (i8, ptr @main.format, i64 8), align 1
+  store i8 0, ptr getelementptr inbounds (i8, ptr @main.format, i64 9), align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call i32 @strlen(ptr @main.format)
+  call void (ptr, ...) @printf(ptr @main.format, i32 %0)
+  ret void
+}
+
+declare void @printf(ptr, ...)
+
+declare i32 @strlen(ptr)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/struct/in.go

@@ -0,0 +1,25 @@
+package main
+
+import "C"
+import _ "unsafe"
+
+//go:linkname printf C.printf
+func printf(format *int8, __llgo_va_list ...any)
+
+type Foo struct {
+	A  C.int
+	ok bool
+}
+
+var format = [...]int8{'H', 'e', 'l', 'l', 'o', ' ', '%', 'd', '\n', 0}
+
+func (p Foo) Print() {
+	if p.ok {
+		printf(&format[0], p.A)
+	}
+}
+
+func main() {
+	foo := Foo{100, true}
+	foo.Print()
+}

cl/_testrt/struct/out.ll

@@ -0,0 +1,77 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%main.Foo = type { i32, i1 }
+
+@main.format = global ptr null
+@"main.init$guard" = global ptr null
+
+define void @"(main.Foo).Print"(%main.Foo %0) {
+_llgo_0:
+  %1 = alloca %main.Foo, align 8
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %1, i64 8)
+  store %main.Foo %0, ptr %2, align 4
+  %3 = getelementptr inbounds %main.Foo, ptr %2, i32 0, i32 1
+  %4 = load i1, ptr %3, align 1
+  br i1 %4, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %5 = getelementptr inbounds %main.Foo, ptr %2, i32 0, i32 0
+  %6 = load i32, ptr %5, align 4
+  call void (ptr, ...) @printf(ptr @main.format, i32 %6)
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @"(*main.Foo).Print"(ptr %0) {
+_llgo_0:
+  %1 = load %main.Foo, ptr %0, align 4
+  call void @"(main.Foo).Print"(%main.Foo %1)
+  ret void
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  store i8 72, ptr @main.format, align 1
+  store i8 101, ptr getelementptr inbounds (i8, ptr @main.format, i64 1), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 2), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 3), align 1
+  store i8 111, ptr getelementptr inbounds (i8, ptr @main.format, i64 4), align 1
+  store i8 32, ptr getelementptr inbounds (i8, ptr @main.format, i64 5), align 1
+  store i8 37, ptr getelementptr inbounds (i8, ptr @main.format, i64 6), align 1
+  store i8 100, ptr getelementptr inbounds (i8, ptr @main.format, i64 7), align 1
+  store i8 10, ptr getelementptr inbounds (i8, ptr @main.format, i64 8), align 1
+  store i8 0, ptr getelementptr inbounds (i8, ptr @main.format, i64 9), align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = alloca %main.Foo, align 8
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %0, i64 8)
+  %2 = getelementptr inbounds %main.Foo, ptr %1, i32 0, i32 0
+  %3 = getelementptr inbounds %main.Foo, ptr %1, i32 0, i32 1
+  store i32 100, ptr %2, align 4
+  store i1 true, ptr %3, align 1
+  %4 = load %main.Foo, ptr %1, align 4
+  call void @"(main.Foo).Print"(%main.Foo %4)
+  ret void
+}
+
+declare void @printf(ptr, ...)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr, i64)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()

cl/_testrt/sum/in.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func sum(args ...int) (ret int) {
+	for _, v := range args {
+		ret += v
+	}
+	return
+}
+
+func main() {
+	c.Printf(c.Str("Hello %d\n"), sum(1, 2, 3, 4))
+}

cl/_testrt/sum/out.ll

@@ -0,0 +1,74 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [10 x i8] c"Hello %d\0A\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %1 = getelementptr inbounds i64, ptr %0, i64 0
+  store i64 1, ptr %1, align 4
+  %2 = getelementptr inbounds i64, ptr %0, i64 1
+  store i64 2, ptr %2, align 4
+  %3 = getelementptr inbounds i64, ptr %0, i64 2
+  store i64 3, ptr %3, align 4
+  %4 = getelementptr inbounds i64, ptr %0, i64 3
+  store i64 4, ptr %4, align 4
+  %5 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %0, i64 8, i64 4, i64 0, i64 4, i64 4)
+  %6 = call i64 @main.sum(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
+  %7 = call i32 (ptr, ...) @printf(ptr @0, i64 %6)
+  ret void
+}
+
+define i64 @main.sum(%"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)
+  br label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
+  %2 = phi i64 [ 0, %_llgo_0 ], [ %9, %_llgo_2 ]
+  %3 = phi i64 [ -1, %_llgo_0 ], [ %4, %_llgo_2 ]
+  %4 = add i64 %3, 1
+  %5 = icmp slt i64 %4, %1
+  br i1 %5, label %_llgo_2, label %_llgo_3
+
+_llgo_2:                                          ; preds = %_llgo_1
+  %6 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %0)
+  %7 = getelementptr inbounds i64, ptr %6, i64 %4
+  %8 = load i64, ptr %7, align 4
+  %9 = add i64 %2, %8
+  br label %_llgo_1
+
+_llgo_3:                                          ; preds = %_llgo_1
+  ret i64 %2
+}
+
+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 i32 @printf(ptr, ...)
+
+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")

cl/_testrt/typalias/in.go

@@ -0,0 +1,25 @@
+package main
+
+import "C"
+import _ "unsafe"
+
+//go:linkname printf C.printf
+func printf(format *int8, __llgo_va_list ...any)
+
+type Foo = struct {
+	A  C.int
+	ok bool
+}
+
+var format = [...]int8{'H', 'e', 'l', 'l', 'o', ' ', '%', 'd', '\n', 0}
+
+func Print(p *Foo) {
+	if p.ok {
+		printf(&format[0], p.A)
+	}
+}
+
+func main() {
+	foo := &Foo{100, true}
+	Print(foo)
+}

cl/_testrt/typalias/out.ll

@@ -0,0 +1,63 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@main.format = global ptr null
+@"main.init$guard" = global ptr null
+
+define void @main.Print(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds { i32, i1 }, ptr %0, i32 0, i32 1
+  %2 = load i1, ptr %1, align 1
+  br i1 %2, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %3 = getelementptr inbounds { i32, i1 }, ptr %0, i32 0, i32 0
+  %4 = load i32, ptr %3, align 4
+  call void (ptr, ...) @printf(ptr @main.format, i32 %4)
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  store i8 72, ptr @main.format, align 1
+  store i8 101, ptr getelementptr inbounds (i8, ptr @main.format, i64 1), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 2), align 1
+  store i8 108, ptr getelementptr inbounds (i8, ptr @main.format, i64 3), align 1
+  store i8 111, ptr getelementptr inbounds (i8, ptr @main.format, i64 4), align 1
+  store i8 32, ptr getelementptr inbounds (i8, ptr @main.format, i64 5), align 1
+  store i8 37, ptr getelementptr inbounds (i8, ptr @main.format, i64 6), align 1
+  store i8 100, ptr getelementptr inbounds (i8, ptr @main.format, i64 7), align 1
+  store i8 10, ptr getelementptr inbounds (i8, ptr @main.format, i64 8), align 1
+  store i8 0, ptr getelementptr inbounds (i8, ptr @main.format, i64 9), align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
+  %1 = getelementptr inbounds { i32, i1 }, ptr %0, i32 0, i32 0
+  %2 = getelementptr inbounds { i32, i1 }, ptr %0, i32 0, i32 1
+  store i32 100, ptr %1, align 4
+  store i1 true, ptr %2, align 1
+  call void @main.Print(ptr %0)
+  ret void
+}
+
+declare void @printf(ptr, ...)
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)

cl/_testrt/unreachable/in.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func foo() {
+	c.Unreachable()
+}
+
+func main() {
+	foo()
+	c.Printf(c.Str("Hello\n"))
+}

cl/_testrt/unreachable/out.ll

@@ -0,0 +1,37 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [7 x i8] c"Hello\0A\00", align 1
+
+define void @main.foo() {
+_llgo_0:
+  unreachable
+  ret void
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  call void @main.foo()
+  %0 = call i32 (ptr, ...) @printf(ptr @0)
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare i32 @printf(ptr, ...)

cl/builtin_test.go

@@ -0,0 +1,185 @@
+/*
+ * 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 cl
+
+import (
+	"go/constant"
+	"go/types"
+	"testing"
+
+	llssa "github.com/goplus/llgo/ssa"
+	"golang.org/x/tools/go/ssa"
+)
+
+func TestErrCompileValue(t *testing.T) {
+	defer func() {
+		if r := recover(); r != "can't use llgo instruction as a value" {
+			t.Fatal("TestErrCompileValue:", r)
+		}
+	}()
+	pkg := types.NewPackage("foo", "foo")
+	ctx := &context{
+		goTyps: pkg,
+		link: map[string]string{
+			"foo.": "llgo.unreachable",
+		},
+	}
+	ctx.compileValue(nil, &ssa.Function{
+		Pkg:       &ssa.Package{Pkg: pkg},
+		Signature: types.NewSignatureType(nil, nil, nil, nil, nil, false),
+	})
+}
+
+func TestErrCompileInstrOrValue(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("compileInstrOrValue: no error?")
+		}
+	}()
+	ctx := &context{
+		bvals: make(map[ssa.Value]llssa.Expr),
+	}
+	ctx.compileInstrOrValue(nil, &ssa.Call{}, true)
+}
+
+func TestErrAdvance(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("advance: no error?")
+		}
+	}()
+	var ctx context
+	ctx.advance(nil, nil)
+}
+
+func TestErrAlloca(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("alloca: no error?")
+		}
+	}()
+	var ctx context
+	ctx.alloca(nil, nil)
+}
+
+func TestCStrNoArgs(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("cstr: no error?")
+		}
+	}()
+	cstr(nil, nil)
+}
+
+func TestCStrNonconst(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("cstr: no error?")
+		}
+	}()
+	cstr(nil, []ssa.Value{&ssa.Parameter{}})
+}
+
+func TestPkgNoInit(t *testing.T) {
+	pkg := types.NewPackage("foo", "foo")
+	ctx := &context{
+		goTyps: pkg,
+		loaded: make(map[*types.Package]*pkgInfo),
+	}
+	if ctx.pkgNoInit(pkg) {
+		t.Fatal("pkgNoInit?")
+	}
+}
+
+func TestPkgKind(t *testing.T) {
+	if v := pkgKind("noinit"); v != PkgNoInit {
+		t.Fatal("pkgKind:", v)
+	}
+	if v := pkgKind(""); v != PkgLLGo {
+		t.Fatal("pkgKind:", v)
+	}
+}
+
+func TestPkgKindOf(t *testing.T) {
+	if v := PkgKindOf(types.Unsafe); v != PkgDeclOnly {
+		t.Fatal("PkgKindOf unsafe:", v)
+	}
+	pkg := types.NewPackage("foo", "foo")
+	pkg.Scope().Insert(
+		types.NewConst(
+			0, pkg, "LLGoPackage", types.Typ[types.String],
+			constant.MakeString("noinit")),
+	)
+	if v := PkgKindOf(pkg); v != PkgNoInit {
+		t.Fatal("PkgKindOf foo:", v)
+	}
+}
+
+func TestIsAny(t *testing.T) {
+	if isAny(types.Typ[types.UntypedInt]) {
+		t.Fatal("isAny?")
+	}
+}
+
+func TestIntVal(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("intVal: no error?")
+		}
+	}()
+	intVal(&ssa.Parameter{})
+}
+
+func TestIgnoreName(t *testing.T) {
+	if !ignoreName("runtime.foo") || !ignoreName("runtime/foo") || !ignoreName("internal/abi") {
+		t.Fatal("ignoreName failed")
+	}
+}
+
+func TestErrImport(t *testing.T) {
+	var ctx context
+	pkg := types.NewPackage("foo", "foo")
+	ctx.importPkg(pkg, nil)
+}
+
+func TestErrInitLinkname(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("initLinkname: no error?")
+		}
+	}()
+	var ctx context
+	ctx.initLinkname("foo", "//go:linkname Printf printf", false)
+}
+
+func TestErrVarOf(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("varOf: no error?")
+		}
+	}()
+	prog := llssa.NewProgram(nil)
+	pkg := prog.NewPackage("foo", "foo")
+	pkgTypes := types.NewPackage("foo", "foo")
+	ctx := &context{
+		pkg:    pkg,
+		goTyps: pkgTypes,
+	}
+	ssaPkg := &ssa.Package{Pkg: pkgTypes}
+	g := &ssa.Global{Pkg: ssaPkg}
+	ctx.varOf(g)
+}

cl/cltest/cltest.go

@@ -0,0 +1,131 @@
+/*
+ * 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 cltest
+
+import (
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"go/types"
+	"log"
+	"os"
+	"path"
+	"strings"
+	"testing"
+
+	"github.com/goplus/gogen/packages"
+	"github.com/goplus/llgo/cl"
+	"github.com/goplus/llgo/internal/llgen"
+	"golang.org/x/tools/go/ssa"
+	"golang.org/x/tools/go/ssa/ssautil"
+
+	llssa "github.com/goplus/llgo/ssa"
+)
+
+func init() {
+	cl.SetDebug(cl.DbgFlagAll)
+	llssa.Initialize(llssa.InitAll)
+	llssa.SetDebug(llssa.DbgFlagAll)
+}
+
+func FromDir(t *testing.T, sel, relDir string, byLLGen bool) {
+	dir, err := os.Getwd()
+	if err != nil {
+		t.Fatal("Getwd failed:", err)
+	}
+	dir = path.Join(dir, relDir)
+	fis, err := os.ReadDir(dir)
+	if err != nil {
+		t.Fatal("ReadDir failed:", err)
+	}
+	for _, fi := range fis {
+		name := fi.Name()
+		if !fi.IsDir() || strings.HasPrefix(name, "_") {
+			continue
+		}
+		t.Run(name, func(t *testing.T) {
+			testFrom(t, dir+"/"+name, sel, byLLGen)
+		})
+	}
+}
+
+func Pkg(t *testing.T, pkgPath, outFile string) {
+	b, err := os.ReadFile(outFile)
+	if err != nil {
+		t.Fatal("ReadFile failed:", err)
+	}
+	expected := string(b)
+	if v := llgen.GenFrom(pkgPath); v != expected {
+		t.Fatalf("\n==> got:\n%s\n==> expected:\n%s\n", v, expected)
+	}
+}
+
+func testFrom(t *testing.T, pkgDir, sel string, byLLGen bool) {
+	if sel != "" && !strings.Contains(pkgDir, sel) {
+		return
+	}
+	log.Println("Parsing", pkgDir)
+	in := pkgDir + "/in.go"
+	out := pkgDir + "/out.ll"
+	b, err := os.ReadFile(out)
+	if err != nil {
+		t.Fatal("ReadFile failed:", err)
+	}
+	expected := string(b)
+	if byLLGen {
+		if v := llgen.GenFrom(in); v != expected {
+			t.Fatalf("\n==> got:\n%s\n==> expected:\n%s\n", v, expected)
+		}
+	} else {
+		TestCompileEx(t, nil, in, expected)
+	}
+}
+
+func TestCompileEx(t *testing.T, src any, fname, expected string) {
+	t.Helper()
+	fset := token.NewFileSet()
+	f, err := parser.ParseFile(fset, fname, src, parser.ParseComments)
+	if err != nil {
+		t.Fatal("ParseFile failed:", err)
+	}
+	files := []*ast.File{f}
+	name := f.Name.Name
+	pkg := types.NewPackage(name, name)
+	imp := packages.NewImporter(fset)
+	foo, _, err := ssautil.BuildPackage(
+		&types.Config{Importer: imp}, fset, pkg, files, ssa.SanityCheckFunctions)
+	if err != nil {
+		t.Fatal("BuildPackage failed:", err)
+	}
+	foo.WriteTo(os.Stderr)
+	prog := llssa.NewProgram(nil)
+	prog.SetRuntime(func() *types.Package {
+		rt, err := imp.Import(llssa.PkgRuntime)
+		if err != nil {
+			t.Fatal("load runtime failed:", err)
+		}
+		return rt
+	})
+
+	ret, err := cl.NewPackage(prog, foo, files)
+	if err != nil {
+		t.Fatal("cl.NewPackage failed:", err)
+	}
+	if v := ret.String(); v != expected {
+		t.Fatalf("\n==> got:\n%s\n==> expected:\n%s\n", v, expected)
+	}
+}

cl/compile.go

@@ -18,9 +18,14 @@ package cl
 
 import (
 	"fmt"
+	"go/ast"
+	"go/constant"
+	"go/token"
+	"go/types"
 	"log"
 	"os"
 	"sort"
+	"strings"
 
 	llssa "github.com/goplus/llgo/ssa"
 	"golang.org/x/tools/go/ssa"
@@ -53,18 +58,19 @@ func SetDebug(dbgFlags dbgFlags) {
 const (
 	fnNormal = iota
 	fnHasVArg
-	fnUnsafeInit
+	fnIgnore
 )
 
-func funcKind(vfn ssa.Value) int {
-	if fn, ok := vfn.(*ssa.Function); ok {
-		n := len(fn.Params)
+func (p *context) funcKind(vfn ssa.Value) int {
+	if fn, ok := vfn.(*ssa.Function); ok && fn.Signature.Recv() == nil {
+		params := fn.Signature.Params()
+		n := params.Len()
 		if n == 0 {
-			if fn.Name() == "init" && fn.Pkg.Pkg.Path() == "unsafe" {
-				return fnUnsafeInit
+			if fn.Name() == "init" && p.pkgNoInit(fn.Pkg.Pkg) {
+				return fnIgnore
 			}
 		} else {
-			last := fn.Params[n-1]
+			last := params.At(n - 1)
 			if last.Name() == llssa.NameValist {
 				return fnHasVArg
 			}
@@ -73,51 +79,149 @@ func funcKind(vfn ssa.Value) int {
 	return fnNormal
 }
 
-func isMainFunc(fn *ssa.Function) bool {
-	return fn.Name() == "main" && fn.Pkg.Pkg.Path() == "main"
+func (p *context) pkgNoInit(pkg *types.Package) bool {
+	p.ensureLoaded(pkg)
+	if i, ok := p.loaded[pkg]; ok {
+		return i.kind >= PkgNoInit
+	}
+	return false
+}
+
+func ignoreName(name string) bool {
+	/* TODO(xsw): confirm this is not needed more
+	if name == "unsafe.init" {
+		return true
+	}
+	*/
+	if strings.HasPrefix(name, "internal/") || strings.HasPrefix(name, "crypto/") ||
+		strings.HasPrefix(name, "arena.") || strings.HasPrefix(name, "maps.") ||
+		strings.HasPrefix(name, "time.") || strings.HasPrefix(name, "syscall.") ||
+		strings.HasPrefix(name, "os.") || strings.HasPrefix(name, "plugin.") ||
+		strings.HasPrefix(name, "reflect.") || strings.HasPrefix(name, "errors.") {
+		return true // TODO(xsw)
+	}
+	return inPkg(name, "runtime") || inPkg(name, "sync")
+}
+
+func inPkg(name, pkg string) bool {
+	if len(name) > len(pkg) && strings.HasPrefix(name, pkg) {
+		c := name[len(pkg)]
+		return c == '.' || c == '/'
+	}
+	return false
 }
 
 // -----------------------------------------------------------------------------
 
-type instrAndValue interface {
+type instrOrValue interface {
 	ssa.Instruction
 	ssa.Value
 }
 
+const (
+	PkgNormal = iota
+	PkgLLGo
+	PkgNoInit   // noinit: a package that don't need to be initialized
+	PkgDeclOnly // decl: a package that only have declarations
+)
+
+type pkgInfo struct {
+	kind int
+}
+
 type context struct {
 	prog   llssa.Program
 	pkg    llssa.Package
 	fn     llssa.Function
+	fset   *token.FileSet
+	goProg *ssa.Program
+	goTyps *types.Package
 	goPkg  *ssa.Package
+	link   map[string]string           // pkgPath.nameInPkg => linkname
+	loaded map[*types.Package]*pkgInfo // loaded packages
 	bvals  map[ssa.Value]llssa.Expr    // block values
+	vargs  map[*ssa.Alloc][]llssa.Expr // varargs
 	inits  []func()
+	phis   []func()
 }
 
-func (p *context) compileType(pkg llssa.Package, member *ssa.Type) {
-	panic("todo")
+func (p *context) compileType(pkg llssa.Package, t *ssa.Type) {
+	tn := t.Object().(*types.TypeName)
+	if tn.IsAlias() { // don't need to compile alias type
+		return
+	}
+	tnName := tn.Name()
+	typ := tn.Type()
+	name := llssa.FullName(tn.Pkg(), tnName)
+	if ignoreName(name) {
+		return
+	}
+	if debugInstr {
+		log.Println("==> NewType", name, typ)
+	}
+	p.compileMethods(pkg, typ)
+	p.compileMethods(pkg, types.NewPointer(typ))
+}
+
+func (p *context) compileMethods(pkg llssa.Package, typ types.Type) {
+	prog := p.goProg
+	mthds := prog.MethodSets.MethodSet(typ)
+	for i, n := 0, mthds.Len(); i < n; i++ {
+		mthd := mthds.At(i)
+		if ssaMthd := prog.MethodValue(mthd); ssaMthd != nil {
+			p.compileFunc(pkg, mthd.Obj().Pkg(), ssaMthd, false)
+		}
+	}
 }
 
 // Global variable.
 func (p *context) compileGlobal(pkg llssa.Package, gbl *ssa.Global) {
-	name, typ := gbl.Name(), gbl.Type()
+	typ := gbl.Type()
+	name, vtype := p.varName(gbl.Pkg.Pkg, gbl)
+	if ignoreName(name) || checkCgo(gbl.Name()) {
+		return
+	}
 	if debugInstr {
 		log.Println("==> NewVar", name, typ)
 	}
+	if vtype == cVar {
+		typ = llssa.CType(typ)
+	}
 	g := pkg.NewVar(name, typ)
+	if vtype == goVar {
 		g.Init(p.prog.Null(g.Type))
+	}
 }
 
-func (p *context) compileFunc(pkg llssa.Package, f *ssa.Function) {
-	name := f.Name()
+func (p *context) compileFunc(pkg llssa.Package, pkgTypes *types.Package, f *ssa.Function, closure bool) llssa.Function {
+	var sig = f.Signature
+	var name string
+	if closure {
+		name = funcName(pkgTypes, f)
 		if debugInstr {
-		log.Println("==> NewFunc", name)
+			log.Println("==> NewClosure", name, "type:", sig)
 		}
-	fn := pkg.NewFunc(name, f.Signature)
+	} else {
+		var ftype int
+		name, ftype = p.funcName(pkgTypes, f, true)
+		switch ftype {
+		case ignoredFunc, llgoInstr: // llgo extended instructions
+			return nil
+		}
+		if debugInstr {
+			log.Println("==> NewFunc", name, "type:", sig.Recv(), sig)
+		}
+		if ftype == cFunc {
+			sig = llssa.CFuncDecl(sig)
+		}
+	}
+	fn := pkg.NewFunc(name, sig)
 	p.inits = append(p.inits, func() {
 		p.fn = fn
 		defer func() {
 			p.fn = nil
 		}()
+		p.phis = nil
 		nblk := len(f.Blocks)
 		if nblk == 0 { // external function
 			return
@@ -130,44 +234,213 @@ func (p *context) compileFunc(pkg llssa.Package, f *ssa.Function) {
 		}
 		fn.MakeBlocks(nblk)
 		b := fn.NewBuilder()
-		isMain := isMainFunc(f)
+		p.bvals = make(map[ssa.Value]llssa.Expr)
 		for i, block := range f.Blocks {
-			p.compileBlock(b, block, isMain && i == 0)
+			p.compileBlock(b, block, i == 0 && name == "main")
+		}
+		for _, phi := range p.phis {
+			phi()
 		}
 	})
+	return fn
 }
 
 func (p *context) compileBlock(b llssa.Builder, block *ssa.BasicBlock, doInit bool) llssa.BasicBlock {
 	ret := p.fn.Block(block.Index)
 	b.SetBlock(ret)
-	p.bvals = make(map[ssa.Value]llssa.Expr)
 	if doInit {
-		fn := p.pkg.FuncOf("init")
-		b.Call(fn.Expr)
+		pkg := p.pkg
+		callRuntimeInit(b, pkg)
+		b.Call(pkg.FuncOf("main.init").Expr)
 	}
-	for _, instr := range block.Instrs {
+	instrs := p.compilePhis(b, block.Instrs)
+	for _, instr := range instrs {
 		p.compileInstr(b, instr)
 	}
 	return ret
 }
 
-func (p *context) compileInstrAndValue(b llssa.Builder, iv instrAndValue) (ret llssa.Expr) {
+const (
+	RuntimeInit = llssa.PkgRuntime + ".init"
+)
+
+func callRuntimeInit(b llssa.Builder, pkg llssa.Package) {
+	fn := pkg.NewFunc(RuntimeInit, types.NewSignatureType(nil, nil, nil, nil, nil, false))
+	b.Call(fn.Expr)
+}
+
+func isAny(t types.Type) bool {
+	if t, ok := t.(*types.Interface); ok {
+		return t.Empty()
+	}
+	return false
+}
+
+func intVal(v ssa.Value) int64 {
+	if c, ok := v.(*ssa.Const); ok {
+		if iv, exact := constant.Int64Val(c.Value); exact {
+			return iv
+		}
+	}
+	panic("intVal: ssa.Value is not a const int")
+}
+
+func (p *context) isVArgs(vx ssa.Value) (ret []llssa.Expr, ok bool) {
+	if va, vok := vx.(*ssa.Alloc); vok {
+		ret, ok = p.vargs[va] // varargs: this is a varargs index
+	}
+	return
+}
+
+func (p *context) checkVArgs(v *ssa.Alloc, t *types.Pointer) bool {
+	if v.Comment == "varargs" { // this is a varargs allocation
+		if arr, ok := t.Elem().(*types.Array); ok {
+			if isAny(arr.Elem()) {
+				p.vargs[v] = make([]llssa.Expr, arr.Len())
+				return true
+			}
+		}
+	}
+	return false
+}
+
+// func cstr(string) *int8
+func cstr(b llssa.Builder, args []ssa.Value) (ret llssa.Expr) {
+	if len(args) == 1 {
+		if c, ok := args[0].(*ssa.Const); ok {
+			if v := c.Value; v.Kind() == constant.String {
+				sv := constant.StringVal(v)
+				return b.CStr(sv)
+			}
+		}
+	}
+	panic("cstr(<string-literal>): invalid arguments")
+}
+
+func (p *context) advance(b llssa.Builder, args []ssa.Value) (ret llssa.Expr) {
+	if len(args) == 2 {
+		ptr := p.compileValue(b, args[0])
+		offset := p.compileValue(b, args[1])
+		return b.Advance(ptr, offset)
+	}
+	panic("advance(p ptr, offset int): invalid arguments")
+}
+
+// func alloca(size uintptr) unsafe.Pointer
+func (p *context) alloca(b llssa.Builder, args []ssa.Value) (ret llssa.Expr) {
+	if len(args) == 1 {
+		n := p.compileValue(b, args[0])
+		return b.Alloca(n)
+	}
+	panic("alloca(size uintptr): invalid arguments")
+}
+
+// func allocaCStr(s string) *int8
+func (p *context) allocaCStr(b llssa.Builder, args []ssa.Value) (ret llssa.Expr) {
+	if len(args) == 1 {
+		s := p.compileValue(b, args[0])
+		return b.AllocaCStr(s)
+	}
+	panic("allocaCStr(s string): invalid arguments")
+}
+
+func isPhi(i ssa.Instruction) bool {
+	_, ok := i.(*ssa.Phi)
+	return ok
+}
+
+func (p *context) compilePhis(b llssa.Builder, instrs []ssa.Instruction) []ssa.Instruction {
+	if ninstr := len(instrs); ninstr > 0 {
+		if isPhi(instrs[0]) {
+			n := 1
+			for n < ninstr && isPhi(instrs[n]) {
+				n++
+			}
+			rets := make([]llssa.Expr, n)
+			for i := 0; i < n; i++ {
+				iv := instrs[i].(*ssa.Phi)
+				rets[i] = p.compilePhi(b, iv)
+			}
+			for i := 0; i < n; i++ {
+				iv := instrs[i].(*ssa.Phi)
+				p.bvals[iv] = rets[i].Do(b)
+			}
+			return instrs[n:]
+		}
+	}
+	return instrs
+}
+
+func (p *context) compilePhi(b llssa.Builder, v *ssa.Phi) (ret llssa.Expr) {
+	phi := b.Phi(p.prog.Type(v.Type()))
+	ret = phi.Expr
+	p.phis = append(p.phis, func() {
+		preds := v.Block().Preds
+		bblks := make([]llssa.BasicBlock, len(preds))
+		for i, pred := range preds {
+			bblks[i] = p.fn.Block(pred.Index)
+		}
+		edges := v.Edges
+		phi.AddIncoming(b, bblks, func(i int) llssa.Expr {
+			return p.compileValue(b, edges[i])
+		})
+	})
+	return
+}
+
+func (p *context) compileInstrOrValue(b llssa.Builder, iv instrOrValue, asValue bool) (ret llssa.Expr) {
+	if asValue {
 		if v, ok := p.bvals[iv]; ok {
 			return v
 		}
+		log.Panicln("unreachable:", iv)
+	}
 	switch v := iv.(type) {
 	case *ssa.Call:
 		call := v.Call
-		kind := funcKind(call.Value)
-		if kind == fnUnsafeInit {
+		cv := call.Value
+		kind := p.funcKind(cv)
+		if kind == fnIgnore {
 			return
 		}
 		if debugGoSSA {
-			log.Println(">>> Call", call.Value, call.Args)
+			log.Println(">>> Call", cv, call.Args)
 		}
-		fn := p.compileValue(b, call.Value)
+		switch cv := cv.(type) {
+		case *ssa.Builtin:
+			fn := cv.Name()
+			if fn == "ssa:wrapnilchk" { // TODO(xsw): check nil ptr
+				arg := call.Args[0]
+				ret = p.compileValue(b, arg)
+				// log.Println("wrapnilchk:", ret.TypeOf())
+			} else {
+				args := p.compileValues(b, call.Args, kind)
+				ret = b.BuiltinCall(fn, args...)
+			}
+		case *ssa.Function:
+			fn, ftype := p.funcOf(cv)
+			switch ftype {
+			case goFunc, cFunc:
+				args := p.compileValues(b, call.Args, kind)
+				ret = b.Call(fn.Expr, args...)
+			case llgoCstr:
+				ret = cstr(b, call.Args)
+			case llgoAdvance:
+				ret = p.advance(b, call.Args)
+			case llgoAlloca:
+				ret = p.alloca(b, call.Args)
+			case llgoAllocaCStr:
+				ret = p.allocaCStr(b, call.Args)
+			case llgoUnreachable: // func unreachable()
+				b.Unreachable()
+			default:
+				panic("todo")
+			}
+		default:
+			fn := p.compileValue(b, cv)
 			args := p.compileValues(b, call.Args, kind)
 			ret = b.Call(fn, args...)
+		}
 	case *ssa.BinOp:
 		x := p.compileValue(b, v.X)
 		y := p.compileValue(b, v.Y)
@@ -175,13 +448,84 @@ func (p *context) compileInstrAndValue(b llssa.Builder, iv instrAndValue) (ret l
 	case *ssa.UnOp:
 		x := p.compileValue(b, v.X)
 		ret = b.UnOp(v.Op, x)
-	case *ssa.IndexAddr:
+	case *ssa.ChangeType:
+		t := v.Type()
 		x := p.compileValue(b, v.X)
+		ret = b.ChangeType(p.prog.Type(t), x)
+	case *ssa.Convert:
+		t := v.Type()
+		x := p.compileValue(b, v.X)
+		ret = b.Convert(p.prog.Type(t), x)
+	case *ssa.FieldAddr:
+		x := p.compileValue(b, v.X)
+		ret = b.FieldAddr(x, v.Field)
+	case *ssa.Alloc:
+		t := v.Type().(*types.Pointer)
+		if p.checkVArgs(v, t) { // varargs: this is a varargs allocation
+			return
+		}
+		ret = b.Alloc(t, v.Heap)
+	case *ssa.IndexAddr:
+		vx := v.X
+		if _, ok := p.isVArgs(vx); ok { // varargs: this is a varargs index
+			return
+		}
+		x := p.compileValue(b, vx)
 		idx := p.compileValue(b, v.Index)
 		ret = b.IndexAddr(x, idx)
-	case *ssa.Alloc:
+	case *ssa.Index:
+		x := p.compileValue(b, v.X)
+		idx := p.compileValue(b, v.Index)
+		ret = b.Index(x, idx, func(e llssa.Expr) (ret llssa.Expr) {
+			if e == x {
+				if n, ok := v.X.(*ssa.UnOp); ok {
+					return p.compileValue(b, n.X)
+				}
+			}
+			panic(fmt.Errorf("todo addr of %v", e))
+		})
+	case *ssa.Slice:
+		vx := v.X
+		if _, ok := p.isVArgs(vx); ok { // varargs: this is a varargs slice
+			return
+		}
+		var low, high, max llssa.Expr
+		x := p.compileValue(b, vx)
+		if v.Low != nil {
+			low = p.compileValue(b, v.Low)
+		}
+		if v.High != nil {
+			high = p.compileValue(b, v.High)
+		}
+		if v.Max != nil {
+			max = p.compileValue(b, v.Max)
+		}
+		ret = b.Slice(x, low, high, max)
+	case *ssa.MakeInterface:
+		const (
+			delayExpr = true // varargs: don't need to convert an expr to any
+		)
 		t := v.Type()
-		ret = b.Alloc(p.prog.Type(t), v.Heap)
+		x := p.compileValue(b, v.X)
+		ret = b.MakeInterface(t, x, delayExpr)
+	case *ssa.MakeSlice:
+		var nCap llssa.Expr
+		t := v.Type()
+		nLen := p.compileValue(b, v.Len)
+		if v.Cap != nil {
+			nCap = p.compileValue(b, v.Cap)
+		}
+		ret = b.MakeSlice(p.prog.Type(t), nLen, nCap)
+	case *ssa.MakeMap:
+		var nReserve llssa.Expr
+		t := v.Type()
+		if v.Reserve != nil {
+			nReserve = p.compileValue(b, v.Reserve)
+		}
+		ret = b.MakeMap(p.prog.Type(t), nReserve)
+	case *ssa.TypeAssert:
+		x := p.compileValue(b, v.X)
+		ret = b.TypeAssert(x, p.prog.Type(v.AssertedType), v.CommaOk)
 	default:
 		panic(fmt.Sprintf("compileInstrAndValue: unknown instr - %T\n", iv))
 	}
@@ -190,13 +534,25 @@ func (p *context) compileInstrAndValue(b llssa.Builder, iv instrAndValue) (ret l
 }
 
 func (p *context) compileInstr(b llssa.Builder, instr ssa.Instruction) {
-	if iv, ok := instr.(instrAndValue); ok {
-		p.compileInstrAndValue(b, iv)
+	if iv, ok := instr.(instrOrValue); ok {
+		p.compileInstrOrValue(b, iv, false)
 		return
 	}
 	switch v := instr.(type) {
 	case *ssa.Store:
-		ptr := p.compileValue(b, v.Addr)
+		va := v.Addr
+		if va, ok := va.(*ssa.IndexAddr); ok {
+			if args, ok := p.isVArgs(va.X); ok { // varargs: this is a varargs store
+				idx := intVal(va.Index)
+				val := v.Val
+				if vi, ok := val.(*ssa.MakeInterface); ok {
+					val = vi.X
+				}
+				args[idx] = p.compileValue(b, val)
+				return
+			}
+		}
+		ptr := p.compileValue(b, va)
 		val := p.compileValue(b, v.Val)
 		b.Store(ptr, val)
 	case *ssa.Jump:
@@ -220,14 +576,22 @@ func (p *context) compileInstr(b llssa.Builder, instr ssa.Instruction) {
 		thenb := fn.Block(succs[0].Index)
 		elseb := fn.Block(succs[1].Index)
 		b.If(cond, thenb, elseb)
+	case *ssa.MapUpdate:
+		m := p.compileValue(b, v.Map)
+		key := p.compileValue(b, v.Key)
+		val := p.compileValue(b, v.Value)
+		b.MapUpdate(m, key, val)
+	case *ssa.Panic:
+		arg := p.compileValue(b, v.X).Do(b)
+		b.Panic(arg)
 	default:
 		panic(fmt.Sprintf("compileInstr: unknown instr - %T\n", instr))
 	}
 }
 
 func (p *context) compileValue(b llssa.Builder, v ssa.Value) llssa.Expr {
-	if iv, ok := v.(instrAndValue); ok {
-		return p.compileInstrAndValue(b, iv)
+	if iv, ok := v.(instrOrValue); ok {
+		return p.compileInstrOrValue(b, iv, true)
 	}
 	switch v := v.(type) {
 	case *ssa.Parameter:
@@ -238,19 +602,20 @@ func (p *context) compileValue(b llssa.Builder, v ssa.Value) llssa.Expr {
 			}
 		}
 	case *ssa.Function:
-		if v.Pkg != p.goPkg {
-			panic("todo")
+		if v.Blocks != nil {
+			fn := p.compileFunc(p.pkg, p.goTyps, v, true)
+			return fn.Expr
+		}
+		fn, ftype := p.funcOf(v)
+		if ftype >= llgoInstrBase {
+			panic("can't use llgo instruction as a value")
 		}
-		fn := p.pkg.FuncOf(v.Name())
 		return fn.Expr
 	case *ssa.Global:
-		if v.Pkg != p.goPkg {
-			panic("todo")
-		}
-		g := p.pkg.VarOf(v.Name())
+		g := p.varOf(v)
 		return g.Expr
 	case *ssa.Const:
-		t := v.Type()
+		t := types.Default(v.Type())
 		return b.Const(v.Value, p.prog.Type(t))
 	}
 	panic(fmt.Sprintf("compileValue: unknown value - %T\n", v))
@@ -259,19 +624,23 @@ func (p *context) compileValue(b llssa.Builder, v ssa.Value) llssa.Expr {
 func (p *context) compileVArg(ret []llssa.Expr, b llssa.Builder, v ssa.Value) []llssa.Expr {
 	_ = b
 	switch v := v.(type) {
+	case *ssa.Slice: // varargs: this is a varargs slice
+		if args, ok := p.isVArgs(v.X); ok {
+			return append(ret, args...)
+		}
 	case *ssa.Const:
 		if v.Value == nil {
 			return ret
 		}
 	}
-	panic("todo")
+	panic(fmt.Sprintf("compileVArg: unknown value - %T\n", v))
 }
 
 func (p *context) compileValues(b llssa.Builder, vals []ssa.Value, hasVArg int) []llssa.Expr {
 	n := len(vals) - hasVArg
 	ret := make([]llssa.Expr, n)
 	for i := 0; i < n; i++ {
-		ret[i] = p.compileValue(b, vals[i])
+		ret[i] = p.compileValue(b, vals[i]).Do(b)
 	}
 	if hasVArg > 0 {
 		ret = p.compileVArg(ret, b, vals[n])
@@ -281,37 +650,43 @@ func (p *context) compileValues(b llssa.Builder, vals []ssa.Value, hasVArg int)
 
 // -----------------------------------------------------------------------------
 
-type Config struct {
-}
-
 // NewPackage compiles a Go package to LLVM IR package.
-func NewPackage(prog llssa.Program, pkg *ssa.Package, conf *Config) (ret llssa.Package, err error) {
+func NewPackage(prog llssa.Program, pkg *ssa.Package, files []*ast.File) (ret llssa.Package, err error) {
 	type namedMember struct {
 		name string
 		val  ssa.Member
 	}
 
-	// Sort by position, so that the order of the functions in the IR matches
-	// the order of functions in the source file. This is useful for testing,
-	// for example.
-	var members []*namedMember
+	members := make([]*namedMember, 0, len(pkg.Members))
 	for name, v := range pkg.Members {
 		members = append(members, &namedMember{name, v})
 	}
 	sort.Slice(members, func(i, j int) bool {
-		iPos := members[i].val.Pos()
-		jPos := members[j].val.Pos()
-		return iPos < jPos
+		return members[i].name < members[j].name
 	})
 
+	pkgProg := pkg.Prog
 	pkgTypes := pkg.Pkg
-	ret = prog.NewPackage(pkgTypes.Name(), pkgTypes.Path())
+	pkgName, pkgPath := pkgTypes.Name(), llssa.PathOf(pkgTypes)
+	if pkgPath == llssa.PkgRuntime {
+		prog.SetRuntime(pkgTypes)
+	}
+	ret = prog.NewPackage(pkgName, pkgPath)
 
 	ctx := &context{
 		prog:   prog,
 		pkg:    ret,
+		fset:   pkgProg.Fset,
+		goProg: pkgProg,
+		goTyps: pkgTypes,
 		goPkg:  pkg,
+		link:   make(map[string]string),
+		vargs:  make(map[*ssa.Alloc][]llssa.Expr),
+		loaded: map[*types.Package]*pkgInfo{
+			types.Unsafe: {kind: PkgDeclOnly}, // TODO(xsw): PkgNoInit or PkgDeclOnly?
+		},
 	}
+	ctx.initFiles(pkgPath, files)
 	for _, m := range members {
 		member := m.val
 		switch member := member.(type) {
@@ -320,16 +695,20 @@ func NewPackage(prog llssa.Program, pkg *ssa.Package, conf *Config) (ret llssa.P
 				// Do not try to build generic (non-instantiated) functions.
 				continue
 			}
-			ctx.compileFunc(ret, member)
+			ctx.compileFunc(ret, member.Pkg.Pkg, member, false)
 		case *ssa.Type:
 			ctx.compileType(ret, member)
 		case *ssa.Global:
 			ctx.compileGlobal(ret, member)
 		}
 	}
-	for _, ini := range ctx.inits {
+	for len(ctx.inits) > 0 {
+		inits := ctx.inits
+		ctx.inits = nil
+		for _, ini := range inits {
 			ini()
 		}
+	}
 	return
 }
 

cl/compile_test.go

@@ -14,99 +14,30 @@
  * limitations under the License.
  */
 
-package cl
+package cl_test
 
 import (
-	"go/ast"
-	"go/importer"
-	"go/parser"
-	"go/token"
-	"go/types"
-	"log"
-	"os"
-	"path"
-	"strings"
 	"testing"
 
-	llssa "github.com/goplus/llgo/ssa"
-	"golang.org/x/tools/go/ssa"
-	"golang.org/x/tools/go/ssa/ssautil"
+	"github.com/goplus/llgo/cl/cltest"
+	"github.com/goplus/llgo/ssa"
 )
 
-func TestFromTestdata(t *testing.T) {
-	testFromDir(t, "", "./_testdata")
-}
-
-func init() {
-	SetDebug(DbgFlagAll)
-	llssa.Initialize(llssa.InitAll)
-	llssa.SetDebug(llssa.DbgFlagAll)
-}
-
-func testFromDir(t *testing.T, sel, relDir string) {
-	dir, err := os.Getwd()
-	if err != nil {
-		t.Fatal("Getwd failed:", err)
-	}
-	dir = path.Join(dir, relDir)
-	fis, err := os.ReadDir(dir)
-	if err != nil {
-		t.Fatal("ReadDir failed:", err)
-	}
-	for _, fi := range fis {
-		name := fi.Name()
-		if !fi.IsDir() || strings.HasPrefix(name, "_") {
-			continue
-		}
-		t.Run(name, func(t *testing.T) {
-			testFrom(t, dir+"/"+name, sel)
-		})
-	}
-}
-
-func testFrom(t *testing.T, pkgDir, sel string) {
-	if sel != "" && !strings.Contains(pkgDir, sel) {
-		return
-	}
-	log.Println("Parsing", pkgDir)
-	in := pkgDir + "/in.go"
-	out := pkgDir + "/out.ll"
-	expected, err := os.ReadFile(out)
-	if err != nil {
-		t.Fatal("ReadFile failed:", err)
-	}
-	testCompileEx(t, nil, in, string(expected))
-}
-
-func testCompileEx(t *testing.T, src any, fname, expected string) {
-	t.Helper()
-	fset := token.NewFileSet()
-	f, err := parser.ParseFile(fset, fname, src, parser.ParseComments)
-	if err != nil {
-		t.Fatal("ParseFile failed:", err)
-	}
-	files := []*ast.File{f}
-	name := f.Name.Name
-	pkg := types.NewPackage(name, name)
-	foo, _, err := ssautil.BuildPackage(
-		&types.Config{Importer: importer.Default()}, fset, pkg, files, ssa.SanityCheckFunctions)
-	if err != nil {
-		t.Fatal("BuildPackage failed:", err)
-	}
-	foo.WriteTo(os.Stderr)
-	prog := llssa.NewProgram(nil)
-	ret, err := NewPackage(prog, foo, nil)
-	if err != nil {
-		t.Fatal("cl.NewPackage failed:", err)
-	}
-	if v := ret.String(); v != expected {
-		t.Fatalf("\n==> got:\n%s\n==> expected:\n%s\n", v, expected)
-	}
-}
-
 func testCompile(t *testing.T, src, expected string) {
 	t.Helper()
-	testCompileEx(t, src, "foo.go", expected)
+	cltest.TestCompileEx(t, src, "foo.go", expected)
+}
+
+func TestFromTestrt(t *testing.T) {
+	cltest.FromDir(t, "", "./_testrt", true)
+}
+
+func TestFromTestdata(t *testing.T) {
+	cltest.FromDir(t, "", "./_testdata", false)
+}
+
+func TestRuntime(t *testing.T) {
+	cltest.Pkg(t, ssa.PkgRuntime, "../internal/runtime/llgo_autogen.ll")
 }
 
 func TestVar(t *testing.T) {
@@ -116,16 +47,16 @@ var a int
 `, `; ModuleID = 'foo'
 source_filename = "foo"
 
-@"init$guard" = global ptr null
-@a = global ptr null
+@foo.a = global ptr null
+@"foo.init$guard" = global ptr null
 
-define void @init() {
+define void @foo.init() {
 _llgo_0:
-  %0 = load i1, ptr @"init$guard", align 1
+  %0 = load i1, ptr @"foo.init$guard", align 1
   br i1 %0, label %_llgo_2, label %_llgo_1
 
 _llgo_1:                                          ; preds = %_llgo_0
-  store i1 true, ptr @"init$guard", align 1
+  store i1 true, ptr @"foo.init$guard", align 1
   br label %_llgo_2
 
 _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
@@ -143,24 +74,24 @@ func fn(a int, b float64) int {
 `, `; ModuleID = 'foo'
 source_filename = "foo"
 
-@"init$guard" = global ptr null
+@"foo.init$guard" = global ptr null
 
-define void @init() {
+define i64 @foo.fn(i64 %0, double %1) {
 _llgo_0:
-  %0 = load i1, ptr @"init$guard", align 1
+  ret i64 1
+}
+
+define void @foo.init() {
+_llgo_0:
+  %0 = load i1, ptr @"foo.init$guard", align 1
   br i1 %0, label %_llgo_2, label %_llgo_1
 
 _llgo_1:                                          ; preds = %_llgo_0
-  store i1 true, ptr @"init$guard", align 1
+  store i1 true, ptr @"foo.init$guard", align 1
   br label %_llgo_2
 
 _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
   ret void
 }
-
-define i64 @fn(i64 %0, double %1) {
-_llgo_0:
-  ret i64 1
-}
 `)
 }

cl/import.go

@@ -0,0 +1,293 @@
+/*
+ * 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 cl
+
+import (
+	"bytes"
+	"go/ast"
+	"go/constant"
+	"go/token"
+	"go/types"
+	"os"
+	"strings"
+
+	llssa "github.com/goplus/llgo/ssa"
+	"golang.org/x/tools/go/ssa"
+)
+
+type contentLines = [][]byte
+type contentMap = map[string]contentLines
+
+func contentOf(m contentMap, file string) (lines contentLines, err error) {
+	if v, ok := m[file]; ok {
+		return v, nil
+	}
+	b, err := os.ReadFile(file)
+	if err == nil {
+		lines = bytes.Split(b, []byte{'\n'})
+		m[file] = lines
+	}
+	return
+}
+
+// PkgKindOf returns the kind of a package.
+func PkgKindOf(pkg *types.Package) int {
+	scope := pkg.Scope()
+	kind := pkgKindByScope(scope)
+	if kind == PkgNormal {
+		kind = pkgKindByPath(pkg.Path())
+	}
+	return kind
+}
+
+// decl: a package that only contains declarations
+// noinit: a package that does not need to be initialized
+func pkgKind(v string) int {
+	switch v {
+	case "decl":
+		return PkgDeclOnly
+	case "noinit":
+		return PkgNoInit
+	}
+	return PkgLLGo
+}
+
+func pkgKindByScope(scope *types.Scope) int {
+	if v, ok := scope.Lookup("LLGoPackage").(*types.Const); ok {
+		if v := v.Val(); v.Kind() == constant.String {
+			return pkgKind(constant.StringVal(v))
+		}
+		return PkgLLGo
+	}
+	return PkgNormal
+}
+
+func (p *context) importPkg(pkg *types.Package, i *pkgInfo) {
+	scope := pkg.Scope()
+	kind := pkgKindByScope(scope)
+	if kind == PkgNormal {
+		return
+	}
+	i.kind = kind
+	fset := p.fset
+	names := scope.Names()
+	contents := make(contentMap)
+	pkgPath := llssa.PathOf(pkg)
+	for _, name := range names {
+		if token.IsExported(name) {
+			obj := scope.Lookup(name)
+			switch obj := obj.(type) {
+			case *types.Func:
+				if pos := obj.Pos(); pos != token.NoPos {
+					p.initLinknameByPos(fset, pos, pkgPath, contents, false)
+				}
+			case *types.Var:
+				if pos := obj.Pos(); pos != token.NoPos {
+					p.initLinknameByPos(fset, pos, pkgPath, contents, true)
+				}
+			}
+		}
+	}
+}
+
+func (p *context) initFiles(pkgPath string, files []*ast.File) {
+	for _, file := range files {
+		for _, decl := range file.Decls {
+			switch decl := decl.(type) {
+			case *ast.FuncDecl:
+				if decl.Recv == nil {
+					p.initLinknameByDoc(decl.Doc, pkgPath, false)
+				}
+			case *ast.GenDecl:
+				if decl.Tok == token.VAR && len(decl.Specs) == 1 {
+					p.initLinknameByDoc(decl.Doc, pkgPath, true)
+				}
+			}
+		}
+	}
+}
+
+func (p *context) initLinknameByDoc(doc *ast.CommentGroup, pkgPath string, isVar bool) {
+	if doc != nil {
+		if n := len(doc.List); n > 0 {
+			line := doc.List[n-1].Text
+			p.initLinkname(pkgPath, line, isVar)
+		}
+	}
+}
+
+func (p *context) initLinknameByPos(fset *token.FileSet, pos token.Pos, pkgPath string, contents contentMap, isVar bool) {
+	f := fset.File(pos)
+	if fp := f.Position(pos); fp.Line > 2 {
+		lines, err := contentOf(contents, fp.Filename)
+		if err != nil {
+			panic(err)
+		}
+		if i := fp.Line - 2; i < len(lines) {
+			line := string(lines[i])
+			p.initLinkname(pkgPath, line, isVar)
+		}
+	}
+}
+
+func (p *context) initLinkname(pkgPath, line string, isVar bool) {
+	const (
+		linkname = "//go:linkname "
+	)
+	if strings.HasPrefix(line, linkname) {
+		text := strings.TrimSpace(line[len(linkname):])
+		if idx := strings.IndexByte(text, ' '); idx > 0 {
+			link := strings.TrimLeft(text[idx+1:], " ")
+			if isVar || strings.Contains(link, ".") { // eg. C.printf, C.strlen, llgo.cstr
+				name := pkgPath + "." + text[:idx]
+				p.link[name] = link
+			} else {
+				panic(line + ": no specified call convention. eg. //go:linkname Printf C.printf")
+			}
+		}
+	}
+}
+
+// func: pkg.name
+// method: (pkg.T).name, (*pkg.T).name
+func funcName(pkg *types.Package, fn *ssa.Function) string {
+	sig := fn.Signature
+	name := fn.Name()
+	if recv := sig.Recv(); recv != nil {
+		var tName string
+		t := recv.Type()
+		if tp, ok := t.(*types.Pointer); ok {
+			t, tName = tp.Elem(), "*"
+		}
+		tName += llssa.NameOf(t.(*types.Named))
+		return "(" + tName + ")." + name
+	}
+	ret := llssa.FullName(pkg, name)
+	if ret == "main.main" {
+		ret = "main"
+	}
+	return ret
+}
+
+func checkCgo(fnName string) bool {
+	return len(fnName) > 4 && fnName[0] == '_' && fnName[2] == 'g' && fnName[3] == 'o' &&
+		(fnName[1] == 'C' || fnName[1] == 'c') &&
+		(fnName[4] == '_' || strings.HasPrefix(fnName[4:], "Check"))
+}
+
+const (
+	ignoredFunc = iota
+	goFunc
+	cFunc
+	llgoInstr = -1
+
+	llgoInstrBase   = 0x80
+	llgoUnreachable = llgoInstrBase + 0
+	llgoCstr        = llgoInstrBase + 1
+	llgoAlloca      = llgoInstrBase + 2
+	llgoAllocaCStr  = llgoInstrBase + 3
+	llgoAdvance     = llgoInstrBase + 4
+)
+
+func (p *context) funcName(pkg *types.Package, fn *ssa.Function, ignore bool) (string, int) {
+	name := funcName(pkg, fn)
+	if ignore && ignoreName(name) || checkCgo(fn.Name()) {
+		return name, ignoredFunc
+	}
+	if v, ok := p.link[name]; ok {
+		if strings.HasPrefix(v, "C.") {
+			return v[2:], cFunc
+		}
+		if strings.HasPrefix(v, "llgo.") {
+			return v[5:], llgoInstr
+		}
+		return v, goFunc
+	}
+	return name, goFunc
+}
+
+const (
+	ignoredVar = iota
+	goVar
+	cVar
+)
+
+func (p *context) varName(pkg *types.Package, v *ssa.Global) (vName string, vtype int) {
+	name := llssa.FullName(pkg, v.Name())
+	if v, ok := p.link[name]; ok {
+		return v, cVar
+	}
+	return name, goVar
+}
+
+// funcOf returns a function by name and set ftype = goFunc, cFunc, etc.
+// or returns nil and set ftype = llgoCstr, llgoAlloca, llgoUnreachable, etc.
+func (p *context) funcOf(fn *ssa.Function) (ret llssa.Function, ftype int) {
+	pkgTypes := p.ensureLoaded(fn.Pkg.Pkg)
+	pkg := p.pkg
+	name, ftype := p.funcName(pkgTypes, fn, false)
+	if ftype == llgoInstr {
+		switch name {
+		case "cstr":
+			ftype = llgoCstr
+		case "advance":
+			ftype = llgoAdvance
+		case "alloca":
+			ftype = llgoAlloca
+		case "allocaCStr":
+			ftype = llgoAllocaCStr
+		case "unreachable":
+			ftype = llgoUnreachable
+		default:
+			panic("unknown llgo instruction: " + name)
+		}
+	} else if ret = pkg.FuncOf(name); ret == nil {
+		ret = pkg.NewFunc(name, fn.Signature)
+	}
+	return
+}
+
+func (p *context) varOf(v *ssa.Global) (ret llssa.Global) {
+	pkgTypes := p.ensureLoaded(v.Pkg.Pkg)
+	pkg := p.pkg
+	name, _ := p.varName(pkgTypes, v)
+	if ret = pkg.VarOf(name); ret == nil {
+		ret = pkg.NewVar(name, v.Type())
+	}
+	return
+}
+
+func (p *context) ensureLoaded(pkgTypes *types.Package) *types.Package {
+	if p.goTyps != pkgTypes {
+		if _, ok := p.loaded[pkgTypes]; !ok {
+			i := &pkgInfo{
+				kind: pkgKindByPath(pkgTypes.Path()),
+			}
+			p.loaded[pkgTypes] = i
+			p.importPkg(pkgTypes, i)
+		}
+	}
+	return pkgTypes
+}
+
+func pkgKindByPath(pkgPath string) int {
+	switch pkgPath {
+	case "syscall", "runtime/cgo", "unsafe":
+		return PkgDeclOnly
+	}
+	return PkgNormal
+}

cl/internal/libc/libc.go

@@ -0,0 +1,14 @@
+package libc
+
+import "C"
+import _ "unsafe"
+
+const (
+	LLGoPackage = "decl"
+)
+
+//go:linkname Printf C.printf
+func Printf(format *int8, __llgo_va_list ...any)
+
+//go:linkname Strlen C.strlen
+func Strlen(str *int8) C.int

cl/internal/linktarget/foo.go

@@ -0,0 +1,9 @@
+package linktarget
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func F(a, b *c.Char) {
+	c.Printf(c.Str("a: %s, b: %s\n"), a, b)
+}

cl/internal/linktarget/out.ll

@@ -0,0 +1,26 @@
+; ModuleID = 'github.com/goplus/llgo/cl/internal/linktarget'
+source_filename = "github.com/goplus/llgo/cl/internal/linktarget"
+
+@"github.com/goplus/llgo/cl/internal/linktarget.init$guard" = global ptr null
+@0 = private unnamed_addr constant [14 x i8] c"a: %s, b: %s\0A\00", align 1
+
+define void @"github.com/goplus/llgo/cl/internal/linktarget.F"(ptr %0, ptr %1) {
+_llgo_0:
+  %2 = call i32 (ptr, ...) @printf(ptr @0, ptr %0, ptr %1)
+  ret void
+}
+
+define void @"github.com/goplus/llgo/cl/internal/linktarget.init"() {
+_llgo_0:
+  %0 = load i1, ptr @"github.com/goplus/llgo/cl/internal/linktarget.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"github.com/goplus/llgo/cl/internal/linktarget.init$guard", align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+declare i32 @printf(ptr, ...)

cl/internal/stdio/printf.go

@@ -0,0 +1,17 @@
+package stdio
+
+import _ "unsafe"
+
+const (
+	LLGoPackage = true
+)
+
+//go:linkname Printf C.printf
+func Printf(format *int8, __llgo_va_list ...any)
+
+func Max(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}

cl/intrinsics.go

@@ -1,62 +0,0 @@
-/*
- * Copyright (c) 2023 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 cl
-
-/*
-// Define unimplemented intrinsic functions.
-//
-// Some functions are either normally implemented in Go assembly (like
-// sync/atomic functions) or intentionally left undefined to be implemented
-// directly in the compiler (like runtime/volatile functions). Either way, look
-// for these and implement them if this is the case.
-func (b *builder) defineIntrinsicFunction() {
-	panic("todo")
-}
-
-var mathToLLVMMapping = map[string]string{
-	"math.Ceil":  "llvm.ceil.f64",
-	"math.Exp":   "llvm.exp.f64",
-	"math.Exp2":  "llvm.exp2.f64",
-	"math.Floor": "llvm.floor.f64",
-	"math.Log":   "llvm.log.f64",
-	"math.Sqrt":  "llvm.sqrt.f64",
-	"math.Trunc": "llvm.trunc.f64",
-}
-
-// defineMathOp defines a math function body as a call to a LLVM intrinsic,
-// instead of the regular Go implementation. This allows LLVM to reason about
-// the math operation and (depending on the architecture) allows it to lower the
-// operation to very fast floating point instructions. If this is not possible,
-// LLVM will emit a call to a libm function that implements the same operation.
-//
-// One example of an optimization that LLVM can do is to convert
-// float32(math.Sqrt(float64(v))) to a 32-bit floating point operation, which is
-// beneficial on architectures where 64-bit floating point operations are (much)
-// more expensive than 32-bit ones.
-func (b *builder) defineMathOp() {
-	panic("todo")
-}
-
-// Implement most math/bits functions.
-//
-// This implements all the functions that operate on bits. It does not yet
-// implement the arithmetic functions (like bits.Add), which also have LLVM
-// intrinsics.
-func (b *builder) defineMathBitsIntrinsic() bool {
-	panic("todo")
-}
-*/

cmd/internal/build/build.go

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 The GoPlus Authors (goplus.org). All rights reserved.
+ * 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.
@@ -14,93 +14,32 @@
  * limitations under the License.
  */
 
-// Package build implements the “llgo build” command.
+// Package build implements the "llgo build" command.
 package build
 
 import (
-	"fmt"
-	"log"
-	"os"
-	"path/filepath"
-	"reflect"
-
-	"github.com/goplus/gop"
-	"github.com/goplus/gop/x/gopprojs"
-	"github.com/goplus/llgo"
 	"github.com/goplus/llgo/cmd/internal/base"
-	"github.com/goplus/llgo/x/gocmd"
+	"github.com/goplus/llgo/internal/build"
 )
 
 // llgo build
 var Cmd = &base.Command{
-	UsageLine: "llgo build [flags] [packages]",
-	Short:     "Build Go files",
+	UsageLine: "llgo build [-o output] [build flags] [packages]",
+	Short:     "Compile packages and dependencies",
 }
 
-var (
-	flagOutput = flag.String("o", "", "build output file")
-	_          = flag.Bool("v", false, "print verbose information")
-	flag       = &Cmd.Flag
-)
-
 func init() {
 	Cmd.Run = runCmd
 }
 
 func runCmd(cmd *base.Command, args []string) {
-	err := flag.Parse(args)
-	if err != nil {
-		log.Panicln("parse input arguments failed:", err)
+	conf := &build.Config{
+		Mode:   build.ModeBuild,
+		AppExt: build.DefaultAppExt(),
 	}
-
-	args = flag.Args()
-	if len(args) == 0 {
-		args = []string{"."}
+	if len(args) >= 2 && args[0] == "-o" {
+		conf.OutFile = args[1]
+		args = args[2:]
 	}
-
-	proj, args, err := gopprojs.ParseOne(args...)
-	if err != nil {
-		log.Panicln(err)
-	}
-	if len(args) != 0 {
-		log.Panicln("too many arguments:", args)
-	}
-
-	conf := &llgo.Config{}
-	confCmd := &gocmd.BuildConfig{}
-	if *flagOutput != "" {
-		output, err := filepath.Abs(*flagOutput)
-		if err != nil {
-			log.Panicln(err)
-		}
-		confCmd.Output = output
-	}
-	build(proj, conf, confCmd)
+	build.Do(args, conf)
 }
-
-func build(proj gopprojs.Proj, conf *llgo.Config, build *gocmd.BuildConfig) {
-	var obj string
-	var err error
-	switch v := proj.(type) {
-	case *gopprojs.DirProj:
-		obj = v.Dir
-		err = llgo.BuildDir(obj, conf, build)
-	case *gopprojs.PkgPathProj:
-		obj = v.Path
-		err = llgo.BuildPkgPath("", obj, conf, build)
-	case *gopprojs.FilesProj:
-		err = llgo.BuildFiles(v.Files, conf, build)
-	default:
-		log.Panicln("`llgo build` doesn't support", reflect.TypeOf(v))
-	}
-	if gop.NotFound(err) {
-		fmt.Fprintf(os.Stderr, "llgo build %v: not found\n", obj)
-	} else if err != nil {
-		fmt.Fprintln(os.Stderr, err)
-	} else {
-		return
-	}
-	os.Exit(1)
-}
-
-// -----------------------------------------------------------------------------

cmd/internal/clean/clean.go

@@ -0,0 +1,38 @@
+/*
+ * 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 clean implements the "llgo clean" command.
+package clean
+
+import (
+	"github.com/goplus/llgo/cmd/internal/base"
+	"github.com/goplus/llgo/internal/build"
+)
+
+// llgo build
+var Cmd = &base.Command{
+	UsageLine: "llgo clean [clean flags] [build flags] [packages]",
+	Short:     "Remove object files and cached files",
+}
+
+func init() {
+	Cmd.Run = runCmd
+}
+
+func runCmd(cmd *base.Command, args []string) {
+	conf := build.NewDefaultConf(0)
+	build.Clean(args, conf)
+}

cmd/internal/install/install.go

@@ -0,0 +1,38 @@
+/*
+ * 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 install implements the "llgo install" command.
+package install
+
+import (
+	"github.com/goplus/llgo/cmd/internal/base"
+	"github.com/goplus/llgo/internal/build"
+)
+
+// llgo install
+var Cmd = &base.Command{
+	UsageLine: "llgo install [build flags] [packages]",
+	Short:     "Compile and install packages and dependencies",
+}
+
+func init() {
+	Cmd.Run = runCmd
+}
+
+func runCmd(cmd *base.Command, args []string) {
+	conf := build.NewDefaultConf(build.ModeInstall)
+	build.Do(args, conf)
+}

cmd/internal/run/run.go

@@ -0,0 +1,75 @@
+/*
+ * 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 run implements the "llgo run" command.
+package run
+
+import (
+	"errors"
+	"path/filepath"
+
+	"github.com/goplus/llgo/cmd/internal/base"
+	"github.com/goplus/llgo/internal/build"
+)
+
+var (
+	errNoProj = errors.New("llgo: no go files listed")
+)
+
+// llgo run
+var Cmd = &base.Command{
+	UsageLine: "llgo run [build flags] package [arguments...]",
+	Short:     "Compile and run Go program",
+}
+
+func init() {
+	Cmd.Run = runCmd
+}
+
+func runCmd(cmd *base.Command, args []string) {
+	args, runArgs, err := parseRunArgs(args)
+	check(err)
+	conf := build.NewDefaultConf(build.ModeRun)
+	conf.RunArgs = runArgs
+	build.Do(args, conf)
+}
+
+func parseRunArgs(args []string) ([]string, []string, error) {
+	n := build.SkipFlagArgs(args)
+	if n < 0 {
+		return nil, nil, errNoProj
+	}
+
+	arg := args[n]
+	if isGoFile(arg) {
+		n++
+		for n < len(args) && isGoFile(args[n]) {
+			n++
+		}
+		return args[:n], args[n:], nil
+	}
+	return args[:n+1], args[n+1:], nil
+}
+
+func isGoFile(fname string) bool {
+	return filepath.Ext(fname) == ".go"
+}
+
+func check(err error) {
+	if err != nil {
+		panic(err)
+	}
+}

cmd/llgo/llgo.go

@@ -26,7 +26,10 @@ import (
 
 	"github.com/goplus/llgo/cmd/internal/base"
 	"github.com/goplus/llgo/cmd/internal/build"
+	"github.com/goplus/llgo/cmd/internal/clean"
 	"github.com/goplus/llgo/cmd/internal/help"
+	"github.com/goplus/llgo/cmd/internal/install"
+	"github.com/goplus/llgo/cmd/internal/run"
 )
 
 func mainUsage() {
@@ -38,6 +41,9 @@ func init() {
 	flag.Usage = mainUsage
 	base.Llgo.Commands = []*base.Command{
 		build.Cmd,
+		install.Cmd,
+		run.Cmd,
+		clean.Cmd,
 	}
 }
 

go.mod

@@ -4,14 +4,14 @@ go 1.18
 
 require (
 	github.com/aykevl/go-wasm v0.0.1
-	github.com/goplus/gop v1.2.6
-	github.com/goplus/llvm v0.7.1-0.20240420180312-6230a4ea7a47
+	github.com/goplus/gogen v1.15.2
+	github.com/goplus/llvm v0.7.5
+	github.com/goplus/mod v0.13.10
 	github.com/qiniu/x v1.13.10
-	golang.org/x/tools v0.19.0
+	golang.org/x/tools v0.20.0
 )
 
 require (
-	github.com/goplus/gogen v1.15.2 // indirect
-	github.com/goplus/mod v0.13.10 // indirect
 	golang.org/x/mod v0.17.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
 )

go.sum

@@ -2,12 +2,8 @@ github.com/aykevl/go-wasm v0.0.1 h1:lPxy8l48P39W7I0tLrtCrLfZBOUq9IWZ7odGdyJP2AM=
 github.com/aykevl/go-wasm v0.0.1/go.mod h1:b4nggwg3lEkNKOU4wzhtLKz2q2sLxSHFnc98aGt6z/Y=
 github.com/goplus/gogen v1.15.2 h1:Q6XaSx/Zi5tWnjfAziYsQI6Jv6MgODRpFtOYqNkiiqM=
 github.com/goplus/gogen v1.15.2/go.mod h1:92qEzVgv7y8JEFICWG9GvYI5IzfEkxYdsA1DbmnTkqk=
-github.com/goplus/gop v1.2.6 h1:kog3c5Js+8EopqmI4+CwueXsqibnBwYVt5q5N7juRVY=
-github.com/goplus/gop v1.2.6/go.mod h1:uREWbR1MrFaviZ4Mbx4ZCcAYDoqzO0iv1Qo6Np0Xx4E=
-github.com/goplus/llvm v0.7.1-0.20240418160956-6233231cbcc9 h1:E/NBN5tDh6COcJmygdBb9RAJhE4uIHfT51VBlP3tglU=
-github.com/goplus/llvm v0.7.1-0.20240418160956-6233231cbcc9/go.mod h1:PeVK8GgzxwAYCiMiUAJb5wJR6xbhj989tu9oulKLLT4=
-github.com/goplus/llvm v0.7.1-0.20240420180312-6230a4ea7a47 h1:B3nWTLOQh4+Yqt6NryE/cVQdo/+NLiT8AtD4YaeKScg=
-github.com/goplus/llvm v0.7.1-0.20240420180312-6230a4ea7a47/go.mod h1:PeVK8GgzxwAYCiMiUAJb5wJR6xbhj989tu9oulKLLT4=
+github.com/goplus/llvm v0.7.5 h1:ges8WcUdu4FBi0mkZUs27p/4qDQlj28N1UpMg3VQUoE=
+github.com/goplus/llvm v0.7.5/go.mod h1:PeVK8GgzxwAYCiMiUAJb5wJR6xbhj989tu9oulKLLT4=
 github.com/goplus/mod v0.13.10 h1:5Om6KOvo31daN7N30kWU1vC5zhsJPM+uPbcEN/FnlzE=
 github.com/goplus/mod v0.13.10/go.mod h1:HDuPZgpWiaTp3PUolFgsiX+Q77cbUWB/mikVHfYND3c=
 github.com/qiniu/x v1.13.10 h1:J4Z3XugYzAq85SlyAfqlKVrbf05glMbAOh+QncsDQpE=
@@ -31,7 +27,8 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
-golang.org/x/sync v0.6.0 h1:5BMeUDZ7vkXGfEr1x9B4bRcTH4lpkTkpdh0T/J+qjbQ=
+golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
+golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -56,6 +53,6 @@ golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
-golang.org/x/tools v0.19.0 h1:tfGCXNR1OsFG+sVdLAitlpjAvD/I6dHDKnYrpEZUHkw=
-golang.org/x/tools v0.19.0/go.mod h1:qoJWxmGSIBmAeriMx19ogtrEPrGtDbPK634QFIcLAhc=
+golang.org/x/tools v0.20.0 h1:hz/CVckiOxybQvFw6h7b/q80NTr9IUQb4s1IIzW7KNY=
+golang.org/x/tools v0.20.0/go.mod h1:WvitBU7JJf6A4jOdg4S1tviW9bhUxkgeCui/0JHctQg=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

internal/abi/llgo_autogen.ll

@@ -0,0 +1,636 @@
+; ModuleID = 'github.com/goplus/llgo/internal/abi'
+source_filename = "github.com/goplus/llgo/internal/abi"
+
+%"github.com/goplus/llgo/internal/abi.ArrayType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr, ptr, i64 }
+%"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.ChanType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr, i64 }
+%"github.com/goplus/llgo/internal/abi.FuncType" = type { %"github.com/goplus/llgo/internal/abi.Type", i16, i16 }
+%"github.com/goplus/llgo/internal/abi.InterfaceType" = type { %"github.com/goplus/llgo/internal/abi.Type", %"github.com/goplus/llgo/internal/abi.Name", %"github.com/goplus/llgo/internal/runtime.Slice" }
+%"github.com/goplus/llgo/internal/abi.Name" = type { ptr }
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+%"github.com/goplus/llgo/internal/abi.MapType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr, ptr, ptr, { ptr, ptr }, i8, i8, i16, i32 }
+%"github.com/goplus/llgo/internal/abi.PtrType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr }
+%"github.com/goplus/llgo/internal/abi.SliceType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr }
+%"github.com/goplus/llgo/internal/abi.StructType" = type { %"github.com/goplus/llgo/internal/abi.Type", %"github.com/goplus/llgo/internal/abi.Name", %"github.com/goplus/llgo/internal/runtime.Slice" }
+
+@"github.com/goplus/llgo/internal/abi.init$guard" = global ptr null
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ArrayType).ArrayType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ArrayType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).ArrayType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ArrayType).Common"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ArrayType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Common"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ArrayType).FuncType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ArrayType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).FuncType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ArrayType).InterfaceType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ArrayType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).InterfaceType"(ptr %1)
+  ret ptr %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.ArrayType).Kind"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ArrayType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %1)
+  ret i64 %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ArrayType).MapType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ArrayType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).MapType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ArrayType).StructType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ArrayType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).StructType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ChanType).ArrayType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ChanType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).ArrayType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ChanType).Common"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ChanType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Common"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ChanType).FuncType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ChanType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).FuncType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ChanType).InterfaceType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ChanType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).InterfaceType"(ptr %1)
+  ret ptr %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.ChanType).Kind"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ChanType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %1)
+  ret i64 %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.ChanType).Len"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ChanType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Len"(ptr %1)
+  ret i64 %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ChanType).MapType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ChanType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).MapType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.ChanType).StructType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ChanType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).StructType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.FuncType).ArrayType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.FuncType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).ArrayType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.FuncType).Common"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.FuncType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Common"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.FuncType).Elem"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.FuncType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Elem"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.FuncType).FuncType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.FuncType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).FuncType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.FuncType).InterfaceType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.FuncType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).InterfaceType"(ptr %1)
+  ret ptr %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.FuncType).Kind"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.FuncType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %1)
+  ret i64 %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.FuncType).Len"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.FuncType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Len"(ptr %1)
+  ret i64 %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.FuncType).MapType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.FuncType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).MapType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.FuncType).StructType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.FuncType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).StructType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.InterfaceType).ArrayType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.InterfaceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).ArrayType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.InterfaceType).Common"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.InterfaceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Common"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.InterfaceType).Elem"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.InterfaceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Elem"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.InterfaceType).FuncType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.InterfaceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).FuncType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.InterfaceType).InterfaceType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.InterfaceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).InterfaceType"(ptr %1)
+  ret ptr %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.InterfaceType).Kind"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.InterfaceType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %1)
+  ret i64 %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.InterfaceType).Len"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.InterfaceType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Len"(ptr %1)
+  ret i64 %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.InterfaceType).MapType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.InterfaceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).MapType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.InterfaceType).StructType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.InterfaceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).StructType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.MapType).ArrayType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.MapType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).ArrayType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.MapType).Common"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.MapType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Common"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.MapType).FuncType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.MapType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).FuncType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.MapType).InterfaceType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.MapType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).InterfaceType"(ptr %1)
+  ret ptr %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.MapType).Kind"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.MapType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %1)
+  ret i64 %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.MapType).Len"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.MapType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Len"(ptr %1)
+  ret i64 %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.MapType).MapType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.MapType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).MapType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.MapType).StructType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.MapType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).StructType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.PtrType).ArrayType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.PtrType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).ArrayType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.PtrType).Common"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.PtrType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Common"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.PtrType).FuncType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.PtrType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).FuncType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.PtrType).InterfaceType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.PtrType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).InterfaceType"(ptr %1)
+  ret ptr %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.PtrType).Kind"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.PtrType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %1)
+  ret i64 %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.PtrType).Len"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.PtrType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Len"(ptr %1)
+  ret i64 %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.PtrType).MapType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.PtrType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).MapType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.PtrType).StructType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.PtrType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).StructType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.SliceType).ArrayType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.SliceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).ArrayType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.SliceType).Common"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.SliceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Common"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.SliceType).FuncType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.SliceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).FuncType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.SliceType).InterfaceType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.SliceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).InterfaceType"(ptr %1)
+  ret ptr %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.SliceType).Kind"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.SliceType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %1)
+  ret i64 %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.SliceType).Len"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.SliceType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Len"(ptr %1)
+  ret i64 %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.SliceType).MapType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.SliceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).MapType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.SliceType).StructType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.SliceType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).StructType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.StructType).ArrayType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.StructType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).ArrayType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.StructType).Common"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.StructType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Common"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.StructType).Elem"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.StructType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).Elem"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.StructType).FuncType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.StructType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).FuncType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.StructType).InterfaceType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.StructType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).InterfaceType"(ptr %1)
+  ret ptr %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.StructType).Kind"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.StructType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %1)
+  ret i64 %2
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.StructType).Len"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.StructType", ptr %0, i32 0, i32 0
+  %2 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Len"(ptr %1)
+  ret i64 %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.StructType).MapType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.StructType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).MapType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.StructType).StructType"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.StructType", ptr %0, i32 0, i32 0
+  %2 = call ptr @"(*github.com/goplus/llgo/internal/abi.Type).StructType"(ptr %1)
+  ret ptr %2
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.Type).ArrayType"(ptr %0) {
+_llgo_0:
+  %1 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %0)
+  %2 = icmp ne i64 %1, 17
+  br i1 %2, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  ret ptr null
+
+_llgo_2:                                          ; preds = %_llgo_0
+  ret ptr %0
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.Type).Common"(ptr %0) {
+_llgo_0:
+  ret ptr %0
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.Type).Elem"(ptr %0) {
+_llgo_0:
+  %1 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %0)
+  %2 = icmp eq i64 %1, 17
+  br i1 %2, label %_llgo_1, label %_llgo_3
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ArrayType", ptr %0, i32 0, i32 1
+  %4 = load ptr, ptr %3, align 8
+  ret ptr %4
+
+_llgo_2:                                          ; preds = %_llgo_3
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ChanType", ptr %0, i32 0, i32 1
+  %6 = load ptr, ptr %5, align 8
+  ret ptr %6
+
+_llgo_3:                                          ; preds = %_llgo_0
+  %7 = icmp eq i64 %1, 18
+  br i1 %7, label %_llgo_2, label %_llgo_5
+
+_llgo_4:                                          ; preds = %_llgo_5
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.MapType", ptr %0, i32 0, i32 2
+  %9 = load ptr, ptr %8, align 8
+  ret ptr %9
+
+_llgo_5:                                          ; preds = %_llgo_3
+  %10 = icmp eq i64 %1, 21
+  br i1 %10, label %_llgo_4, label %_llgo_7
+
+_llgo_6:                                          ; preds = %_llgo_7
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.PtrType", ptr %0, i32 0, i32 1
+  %12 = load ptr, ptr %11, align 8
+  ret ptr %12
+
+_llgo_7:                                          ; preds = %_llgo_5
+  %13 = icmp eq i64 %1, 22
+  br i1 %13, label %_llgo_6, label %_llgo_9
+
+_llgo_8:                                          ; preds = %_llgo_9
+  %14 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.SliceType", ptr %0, i32 0, i32 1
+  %15 = load ptr, ptr %14, align 8
+  ret ptr %15
+
+_llgo_9:                                          ; preds = %_llgo_7
+  %16 = icmp eq i64 %1, 23
+  br i1 %16, label %_llgo_8, label %_llgo_10
+
+_llgo_10:                                         ; preds = %_llgo_9
+  ret ptr null
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.Type).FuncType"(ptr %0) {
+_llgo_0:
+  %1 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %0)
+  %2 = icmp ne i64 %1, 19
+  br i1 %2, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  ret ptr null
+
+_llgo_2:                                          ; preds = %_llgo_0
+  ret ptr %0
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.Type).InterfaceType"(ptr %0) {
+_llgo_0:
+  %1 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %0)
+  %2 = icmp ne i64 %1, 20
+  br i1 %2, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  ret ptr null
+
+_llgo_2:                                          ; preds = %_llgo_0
+  ret ptr %0
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %0) {
+_llgo_0:
+  %1 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %0, i32 0, i32 6
+  %2 = load i8, ptr %1, align 1
+  %3 = and i8 %2, 31
+  %4 = sext i8 %3 to i64
+  ret i64 %4
+}
+
+define i64 @"(*github.com/goplus/llgo/internal/abi.Type).Len"(ptr %0) {
+_llgo_0:
+  %1 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %0)
+  %2 = icmp eq i64 %1, 17
+  br i1 %2, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.ArrayType", ptr %0, i32 0, i32 3
+  %4 = load i64, ptr %3, align 4
+  ret i64 %4
+
+_llgo_2:                                          ; preds = %_llgo_0
+  ret i64 0
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.Type).MapType"(ptr %0) {
+_llgo_0:
+  %1 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %0)
+  %2 = icmp ne i64 %1, 21
+  br i1 %2, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  ret ptr null
+
+_llgo_2:                                          ; preds = %_llgo_0
+  ret ptr %0
+}
+
+define ptr @"(*github.com/goplus/llgo/internal/abi.Type).StructType"(ptr %0) {
+_llgo_0:
+  %1 = call i64 @"(*github.com/goplus/llgo/internal/abi.Type).Kind"(ptr %0)
+  %2 = icmp ne i64 %1, 25
+  br i1 %2, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  ret ptr null
+
+_llgo_2:                                          ; preds = %_llgo_0
+  ret ptr %0
+}
+
+define void @"github.com/goplus/llgo/internal/abi.init"() {
+_llgo_0:
+  %0 = load i1, ptr @"github.com/goplus/llgo/internal/abi.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"github.com/goplus/llgo/internal/abi.init$guard", align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}

internal/abi/map.go

@@ -0,0 +1,14 @@
+// Copyright 2023 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package abi
+
+// Map constants common to several packages
+// runtime/runtime-gdb.py:MapTypePrinter contains its own copy
+const (
+	MapBucketCountBits = 3 // log2 of number of elements in a bucket.
+	MapBucketCount     = 1 << MapBucketCountBits
+	MapMaxKeyBytes     = 128 // Must fit in a uint8.
+	MapMaxElemBytes    = 128 // Must fit in a uint8.
+)

internal/abi/type.go

@@ -0,0 +1,332 @@
+/*
+ * 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 abi
+
+import (
+	"unsafe"
+)
+
+// -----------------------------------------------------------------------------
+
+// Type is the runtime representation of a Go type.
+//
+// Type is also referenced implicitly
+// (in the form of expressions involving constants and arch.PtrSize)
+// in cmd/compile/internal/reflectdata/reflect.go
+// and cmd/link/internal/ld/decodesym.go
+// (e.g. data[2*arch.PtrSize+4] references the TFlag field)
+// unsafe.OffsetOf(Type{}.TFlag) cannot be used directly in those
+// places because it varies with cross compilation and experiments.
+type Type struct {
+	Size_       uintptr
+	PtrBytes    uintptr // number of (prefix) bytes in the type that can contain pointers
+	Hash        uint32  // hash of type; avoids computation in hash tables
+	TFlag       TFlag   // extra type information flags
+	Align_      uint8   // alignment of variable with this type
+	FieldAlign_ uint8   // alignment of struct field with this type
+	Kind_       uint8   // enumeration for C
+	// function for comparing objects of this type
+	// (ptr to object A, ptr to object B) -> ==?
+	Equal func(unsafe.Pointer, unsafe.Pointer) bool
+	// GCData stores the GC type data for the garbage collector.
+	// If the KindGCProg bit is set in kind, GCData is a GC program.
+	// Otherwise it is a ptrmask bitmap. See mbitmap.go for details.
+	GCData    *byte
+	Str       NameOff // string form
+	PtrToThis TypeOff // type for pointer to this type, may be zero
+}
+
+func (t *Type) Kind() Kind { return Kind(t.Kind_ & KindMask) }
+
+// A Kind represents the specific kind of type that a Type represents.
+// The zero Kind is not a valid kind.
+type Kind uint
+
+const (
+	Invalid Kind = iota
+	Bool
+	Int
+	Int8
+	Int16
+	Int32
+	Int64
+	Uint
+	Uint8
+	Uint16
+	Uint32
+	Uint64
+	Uintptr
+	Float32
+	Float64
+	Complex64
+	Complex128
+	Array
+	Chan
+	Func
+	Interface
+	Map
+	Pointer
+	Slice
+	String
+	Struct
+	UnsafePointer
+)
+
+const (
+	// TODO (khr, drchase) why aren't these in TFlag?  Investigate, fix if possible.
+	KindDirectIface = 1 << 5
+	KindGCProg      = 1 << 6 // Type.gc points to GC program
+	KindMask        = (1 << 5) - 1
+)
+
+// TFlag is used by a Type to signal what extra type information is
+// available in the memory directly following the Type value.
+type TFlag uint8
+
+const (
+	// TFlagUncommon means that there is a data with a type, UncommonType,
+	// just beyond the shared-per-type common data.  That is, the data
+	// for struct types will store their UncommonType at one offset, the
+	// data for interface types will store their UncommonType at a different
+	// offset.  UncommonType is always accessed via a pointer that is computed
+	// using trust-us-we-are-the-implementors pointer arithmetic.
+	//
+	// For example, if t.Kind() == Struct and t.tflag&TFlagUncommon != 0,
+	// then t has UncommonType data and it can be accessed as:
+	//
+	//	type structTypeUncommon struct {
+	//		structType
+	//		u UncommonType
+	//	}
+	//	u := &(*structTypeUncommon)(unsafe.Pointer(t)).u
+	TFlagUncommon TFlag = 1 << 0
+
+	// TFlagExtraStar means the name in the str field has an
+	// extraneous '*' prefix. This is because for most types T in
+	// a program, the type *T also exists and reusing the str data
+	// saves binary size.
+	TFlagExtraStar TFlag = 1 << 1
+
+	// TFlagNamed means the type has a name.
+	TFlagNamed TFlag = 1 << 2
+
+	// TFlagRegularMemory means that equal and hash functions can treat
+	// this type as a single region of t.size bytes.
+	TFlagRegularMemory TFlag = 1 << 3
+)
+
+// NameOff is the offset to a name from moduledata.types.  See resolveNameOff in runtime.
+type NameOff int32
+
+// TypeOff is the offset to a type from moduledata.types.  See resolveTypeOff in runtime.
+type TypeOff int32
+
+// -----------------------------------------------------------------------------
+
+// ArrayType represents a fixed array type.
+type ArrayType struct {
+	Type
+	Elem  *Type // array element type
+	Slice *Type // slice type
+	Len   uintptr
+}
+
+type SliceType struct {
+	Type
+	Elem *Type // slice element type
+}
+
+type MapType struct {
+	Type
+	Key    *Type
+	Elem   *Type
+	Bucket *Type // internal type representing a hash bucket
+	// function for hashing keys (ptr to key, seed) -> hash
+	Hasher     func(unsafe.Pointer, uintptr) uintptr
+	KeySize    uint8  // size of key slot
+	ValueSize  uint8  // size of elem slot
+	BucketSize uint16 // size of bucket
+	Flags      uint32
+}
+
+type PtrType struct {
+	Type
+	Elem *Type // pointer element (pointed at) type
+}
+
+type ChanDir int
+
+const (
+	RecvDir    ChanDir = 1 << iota         // <-chan
+	SendDir                                // chan<-
+	BothDir            = RecvDir | SendDir // chan
+	InvalidDir ChanDir = 0
+)
+
+// ChanType represents a channel type
+type ChanType struct {
+	Type
+	Elem *Type
+	Dir  ChanDir
+}
+
+// funcType represents a function type.
+//
+// A *Type for each in and out parameter is stored in an array that
+// directly follows the funcType (and possibly its uncommonType). So
+// a function type with one method, one input, and one output is:
+//
+//	struct {
+//		funcType
+//		uncommonType
+//		[2]*rtype    // [0] is in, [1] is out
+//	}
+type FuncType struct {
+	Type
+	InCount  uint16
+	OutCount uint16 // top bit is set if last input parameter is ...
+}
+
+type StructField struct {
+	Name   Name    // name is always non-empty
+	Typ    *Type   // type of field
+	Offset uintptr // byte offset of field
+}
+
+type StructType struct {
+	Type
+	PkgPath Name
+	Fields  []StructField
+}
+
+// Name is an encoded type Name with optional extra data.
+//
+// The first byte is a bit field containing:
+//
+//	1<<0 the name is exported
+//	1<<1 tag data follows the name
+//	1<<2 pkgPath nameOff follows the name and tag
+//	1<<3 the name is of an embedded (a.k.a. anonymous) field
+//
+// Following that, there is a varint-encoded length of the name,
+// followed by the name itself.
+//
+// If tag data is present, it also has a varint-encoded length
+// followed by the tag itself.
+//
+// If the import path follows, then 4 bytes at the end of
+// the data form a nameOff. The import path is only set for concrete
+// methods that are defined in a different package than their type.
+//
+// If a name starts with "*", then the exported bit represents
+// whether the pointed to type is exported.
+//
+// Note: this encoding must match here and in:
+//   cmd/compile/internal/reflectdata/reflect.go
+//   cmd/link/internal/ld/decodesym.go
+
+type Name struct {
+	Bytes *byte
+}
+
+type InterfaceType struct {
+	Type
+	PkgPath Name      // import path
+	Methods []Imethod // sorted by hash
+}
+
+// Imethod represents a method on an interface type
+type Imethod struct {
+	Name NameOff // name of method
+	Typ  TypeOff // .(*FuncType) underneath
+}
+
+func (t *Type) Common() *Type {
+	return t
+}
+
+// Len returns the length of t if t is an array type, otherwise 0
+func (t *Type) Len() int {
+	if t.Kind() == Array {
+		return int((*ArrayType)(unsafe.Pointer(t)).Len)
+	}
+	return 0
+}
+
+// Elem returns the element type for t if t is an array, channel, map, pointer, or slice, otherwise nil.
+func (t *Type) Elem() *Type {
+	switch t.Kind() {
+	case Array:
+		tt := (*ArrayType)(unsafe.Pointer(t))
+		return tt.Elem
+	case Chan:
+		tt := (*ChanType)(unsafe.Pointer(t))
+		return tt.Elem
+	case Map:
+		tt := (*MapType)(unsafe.Pointer(t))
+		return tt.Elem
+	case Pointer:
+		tt := (*PtrType)(unsafe.Pointer(t))
+		return tt.Elem
+	case Slice:
+		tt := (*SliceType)(unsafe.Pointer(t))
+		return tt.Elem
+	}
+	return nil
+}
+
+// StructType returns t cast to a *StructType, or nil if its tag does not match.
+func (t *Type) StructType() *StructType {
+	if t.Kind() != Struct {
+		return nil
+	}
+	return (*StructType)(unsafe.Pointer(t))
+}
+
+// MapType returns t cast to a *MapType, or nil if its tag does not match.
+func (t *Type) MapType() *MapType {
+	if t.Kind() != Map {
+		return nil
+	}
+	return (*MapType)(unsafe.Pointer(t))
+}
+
+// ArrayType returns t cast to a *ArrayType, or nil if its tag does not match.
+func (t *Type) ArrayType() *ArrayType {
+	if t.Kind() != Array {
+		return nil
+	}
+	return (*ArrayType)(unsafe.Pointer(t))
+}
+
+// FuncType returns t cast to a *FuncType, or nil if its tag does not match.
+func (t *Type) FuncType() *FuncType {
+	if t.Kind() != Func {
+		return nil
+	}
+	return (*FuncType)(unsafe.Pointer(t))
+}
+
+// InterfaceType returns t cast to a *InterfaceType, or nil if its tag does not match.
+func (t *Type) InterfaceType() *InterfaceType {
+	if t.Kind() != Interface {
+		return nil
+	}
+	return (*InterfaceType)(unsafe.Pointer(t))
+}
+
+// -----------------------------------------------------------------------------

internal/aliases/aliases.go

@@ -0,0 +1,32 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package aliases
+
+import (
+	"go/token"
+	"go/types"
+)
+
+// Package aliases defines backward compatible shims
+// for the types.Alias type representation added in 1.22.
+// This defines placeholders for x/tools until 1.26.
+
+// NewAlias creates a new TypeName in Package pkg that
+// is an alias for the type rhs.
+//
+// The enabled parameter determines whether the resulting [TypeName]'s
+// type is an [types.Alias]. Its value must be the result of a call to
+// [Enabled], which computes the effective value of
+// GODEBUG=gotypesalias=... by invoking the type checker. The Enabled
+// function is expensive and should be called once per task (e.g.
+// package import), not once per call to NewAlias.
+func NewAlias(enabled bool, pos token.Pos, pkg *types.Package, name string, rhs types.Type) *types.TypeName {
+	if enabled {
+		tname := types.NewTypeName(pos, pkg, name, nil)
+		newAlias(tname, rhs)
+		return tname
+	}
+	return types.NewTypeName(pos, pkg, name, rhs)
+}

internal/aliases/aliases_go121.go

@@ -0,0 +1,31 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !go1.22
+// +build !go1.22
+
+package aliases
+
+import (
+	"go/types"
+)
+
+// Alias is a placeholder for a go/types.Alias for <=1.21.
+// It will never be created by go/types.
+type Alias struct{}
+
+func (*Alias) String() string         { panic("unreachable") }
+func (*Alias) Underlying() types.Type { panic("unreachable") }
+func (*Alias) Obj() *types.TypeName   { panic("unreachable") }
+func Rhs(alias *Alias) types.Type     { panic("unreachable") }
+
+// Unalias returns the type t for go <=1.21.
+func Unalias(t types.Type) types.Type { return t }
+
+func newAlias(name *types.TypeName, rhs types.Type) *Alias { panic("unreachable") }
+
+// Enabled reports whether [NewAlias] should create [types.Alias] types.
+//
+// Before go1.22, this function always returns false.
+func Enabled() bool { return false }

internal/aliases/aliases_go122.go

@@ -0,0 +1,63 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build go1.22
+// +build go1.22
+
+package aliases
+
+import (
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"go/types"
+)
+
+// Alias is an alias of types.Alias.
+type Alias = types.Alias
+
+// Rhs returns the type on the right-hand side of the alias declaration.
+func Rhs(alias *Alias) types.Type {
+	if alias, ok := any(alias).(interface{ Rhs() types.Type }); ok {
+		return alias.Rhs() // go1.23+
+	}
+
+	// go1.22's Alias didn't have the Rhs method,
+	// so Unalias is the best we can do.
+	return Unalias(alias)
+}
+
+// Unalias is a wrapper of types.Unalias.
+func Unalias(t types.Type) types.Type { return types.Unalias(t) }
+
+// newAlias is an internal alias around types.NewAlias.
+// Direct usage is discouraged as the moment.
+// Try to use NewAlias instead.
+func newAlias(tname *types.TypeName, rhs types.Type) *Alias {
+	a := types.NewAlias(tname, rhs)
+	// TODO(go.dev/issue/65455): Remove kludgy workaround to set a.actual as a side-effect.
+	Unalias(a)
+	return a
+}
+
+// Enabled reports whether [NewAlias] should create [types.Alias] types.
+//
+// This function is expensive! Call it sparingly.
+func Enabled() bool {
+	// The only reliable way to compute the answer is to invoke go/types.
+	// We don't parse the GODEBUG environment variable, because
+	// (a) it's tricky to do so in a manner that is consistent
+	//     with the godebug package; in particular, a simple
+	//     substring check is not good enough. The value is a
+	//     rightmost-wins list of options. But more importantly:
+	// (b) it is impossible to detect changes to the effective
+	//     setting caused by os.Setenv("GODEBUG"), as happens in
+	//     many tests. Therefore any attempt to cache the result
+	//     is just incorrect.
+	fset := token.NewFileSet()
+	f, _ := parser.ParseFile(fset, "a.go", "package p; type A = int", 0)
+	pkg, _ := new(types.Config).Check("p", fset, []*ast.File{f}, nil)
+	_, enabled := pkg.Scope().Lookup("A").Type().(*types.Alias)
+	return enabled
+}

internal/build/build.go

@@ -0,0 +1,398 @@
+/*
+ * 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 build
+
+import (
+	"fmt"
+	"go/token"
+	"go/types"
+	"os"
+	"os/exec"
+	"path"
+	"path/filepath"
+	"runtime"
+	"strings"
+
+	"golang.org/x/tools/go/packages"
+	"golang.org/x/tools/go/ssa"
+
+	"github.com/goplus/llgo/cl"
+	"github.com/goplus/llgo/x/clang"
+
+	llssa "github.com/goplus/llgo/ssa"
+)
+
+type Mode int
+
+const (
+	ModeBuild Mode = iota
+	ModeInstall
+	ModeRun
+)
+
+func needLLFile(mode Mode) bool {
+	return mode != ModeBuild
+}
+
+type Config struct {
+	BinPath string
+	AppExt  string   // ".exe" on Windows, empty on Unix
+	OutFile string   // only valid for ModeBuild when len(pkgs) == 1
+	RunArgs []string // only valid for ModeRun
+	Mode    Mode
+}
+
+func NewDefaultConf(mode Mode) *Config {
+	bin := os.Getenv("GOBIN")
+	if bin == "" {
+		bin = filepath.Join(runtime.GOROOT(), "bin")
+	}
+	conf := &Config{
+		BinPath: bin,
+		Mode:    mode,
+		AppExt:  DefaultAppExt(),
+	}
+	return conf
+}
+
+func DefaultAppExt() string {
+	if runtime.GOOS == "windows" {
+		return ".exe"
+	}
+	return ""
+}
+
+// -----------------------------------------------------------------------------
+
+const (
+	loadFiles   = packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles
+	loadImports = loadFiles | packages.NeedImports
+	loadTypes   = loadImports | packages.NeedTypes | packages.NeedTypesSizes
+	loadSyntax  = loadTypes | packages.NeedSyntax | packages.NeedTypesInfo
+)
+
+func Do(args []string, conf *Config) {
+	flags, patterns, verbose := ParseArgs(args, buildFlags)
+	cfg := &packages.Config{
+		Mode:       loadSyntax | packages.NeedDeps | packages.NeedModule | packages.NeedExportFile,
+		BuildFlags: flags,
+	}
+
+	if patterns == nil {
+		patterns = []string{"."}
+	}
+	initial, err := packages.Load(cfg, patterns...)
+	check(err)
+
+	mode := conf.Mode
+	if len(initial) == 1 && len(initial[0].CompiledGoFiles) > 0 {
+		if mode == ModeBuild {
+			mode = ModeInstall
+		}
+	} else if mode == ModeRun {
+		if len(initial) > 1 {
+			fmt.Fprintln(os.Stderr, "cannot run multiple packages")
+		} else {
+			fmt.Fprintln(os.Stderr, "no Go files in matched packages")
+		}
+		return
+	}
+
+	llssa.Initialize(llssa.InitAll)
+	if verbose {
+		llssa.SetDebug(llssa.DbgFlagAll)
+		cl.SetDebug(cl.DbgFlagAll)
+	}
+
+	var rt []*packages.Package
+	prog := llssa.NewProgram(nil)
+	prog.SetRuntime(func() *types.Package {
+		rt, err = packages.Load(cfg, llssa.PkgRuntime)
+		check(err)
+		return rt[0].Types
+	})
+
+	pkgs := buildAllPkgs(prog, initial, mode, verbose)
+
+	var runtimeFiles []string
+	if rt != nil {
+		runtimeFiles = allLinkFiles(rt)
+	}
+	if mode != ModeBuild {
+		nErr := 0
+		for _, pkg := range initial {
+			if pkg.Name == "main" {
+				nErr += linkMainPkg(pkg, pkgs, runtimeFiles, conf, mode, verbose)
+			}
+		}
+		if nErr > 0 {
+			os.Exit(nErr)
+		}
+	}
+}
+
+func setNeedRuntime(pkg *packages.Package) {
+	pkg.ID = "" // just use pkg.Module to mark it needs runtime
+}
+
+func isNeedRuntime(pkg *packages.Package) bool {
+	return pkg.ID == ""
+}
+
+func buildAllPkgs(prog llssa.Program, initial []*packages.Package, mode Mode, verbose bool) (pkgs []*aPackage) {
+	// Create SSA-form program representation.
+	ssaProg, pkgs, errPkgs := allPkgs(initial, ssa.SanityCheckFunctions)
+	ssaProg.Build()
+	for _, errPkg := range errPkgs {
+		for _, err := range errPkg.Errors {
+			fmt.Fprintln(os.Stderr, err)
+		}
+		fmt.Fprintln(os.Stderr, "cannot build SSA for package", errPkg)
+	}
+	for _, pkg := range pkgs {
+		buildPkg(prog, pkg, mode, verbose)
+		if prog.NeedRuntime() {
+			setNeedRuntime(pkg.Package)
+		}
+	}
+	return
+}
+
+func linkMainPkg(pkg *packages.Package, pkgs []*aPackage, runtimeFiles []string, conf *Config, mode Mode, verbose bool) (nErr int) {
+	pkgPath := pkg.PkgPath
+	name := path.Base(pkgPath)
+	app := conf.OutFile
+	if app == "" {
+		app = filepath.Join(conf.BinPath, name+conf.AppExt)
+	}
+	const N = 3
+	args := make([]string, N, len(pkg.Imports)+len(runtimeFiles)+(N+1))
+	args[0] = "-o"
+	args[1] = app
+	args[2] = "-Wno-override-module"
+	needRuntime := false
+	packages.Visit([]*packages.Package{pkg}, nil, func(p *packages.Package) {
+		if p.ExportFile != "" && !isRuntimePkg(p.PkgPath) { // skip packages that only contain declarations
+			args = append(args, p.ExportFile+".ll")
+			if !needRuntime {
+				needRuntime = isNeedRuntime(p)
+			}
+		}
+	})
+	if needRuntime && runtimeFiles != nil {
+		args = append(args, runtimeFiles...)
+	} else {
+		for _, aPkg := range pkgs {
+			if aPkg.Package == pkg { // make empty runtime.init if no runtime needed
+				lpkg := aPkg.LPkg
+				lpkg.FuncOf(cl.RuntimeInit).MakeBody(1).Return()
+				if needLLFile(mode) {
+					file := pkg.ExportFile + ".ll"
+					os.WriteFile(file, []byte(lpkg.String()), 0644)
+				}
+			}
+		}
+	}
+
+	if verbose || mode != ModeRun {
+		fmt.Fprintln(os.Stderr, "#", pkgPath)
+	}
+	defer func() {
+		if e := recover(); e != nil {
+			nErr = 1
+		}
+	}()
+
+	// TODO(xsw): show work
+	if verbose {
+		fmt.Fprintln(os.Stderr, "clang", args)
+	}
+	err := clang.New("").Exec(args...)
+	check(err)
+
+	if mode == ModeRun {
+		cmd := exec.Command(app, conf.RunArgs...)
+		cmd.Stdin = os.Stdin
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		cmd.Run()
+	}
+	return
+}
+
+func buildPkg(prog llssa.Program, aPkg *aPackage, mode Mode, verbose bool) {
+	pkg := aPkg.Package
+	if cl.PkgKindOf(pkg.Types) == cl.PkgDeclOnly {
+		// skip packages that only contain declarations
+		// and set no export file
+		pkg.ExportFile = ""
+		return
+	}
+	pkgPath := pkg.PkgPath
+	if verbose {
+		fmt.Fprintln(os.Stderr, pkgPath)
+	}
+	if pkgPath == "unsafe" { // TODO(xsw): maybe can remove this special case
+		return
+	}
+	ret, err := cl.NewPackage(prog, aPkg.SSA, pkg.Syntax)
+	check(err)
+	if needLLFile(mode) {
+		file := pkg.ExportFile + ".ll"
+		os.WriteFile(file, []byte(ret.String()), 0644)
+	}
+	aPkg.LPkg = ret
+}
+
+type aPackage struct {
+	*packages.Package
+	SSA  *ssa.Package
+	LPkg llssa.Package
+}
+
+func allPkgs(initial []*packages.Package, mode ssa.BuilderMode) (prog *ssa.Program, all []*aPackage, errs []*packages.Package) {
+	var fset *token.FileSet
+	if len(initial) > 0 {
+		fset = initial[0].Fset
+	}
+
+	prog = ssa.NewProgram(fset, mode)
+	packages.Visit(initial, nil, func(p *packages.Package) {
+		if p.Types != nil && !p.IllTyped {
+			ssaPkg := prog.CreatePackage(p.Types, p.Syntax, p.TypesInfo, true)
+			all = append(all, &aPackage{p, ssaPkg, nil})
+		} else {
+			errs = append(errs, p)
+		}
+	})
+	return
+}
+
+var (
+	// TODO(xsw): complete build flags
+	buildFlags = map[string]bool{
+		"-C":         true,  // -C dir: Change to dir before running the command
+		"-a":         false, // -a: force rebuilding of packages that are already up-to-date
+		"-n":         false, // -n: print the commands but do not run them
+		"-p":         true,  // -p n: the number of programs to run in parallel
+		"-race":      false, // -race: enable data race detection
+		"-cover":     false, // -cover: enable coverage analysis
+		"-covermode": true,  // -covermode mode: set the mode for coverage analysis
+		"-v":         false, // -v: print the names of packages as they are compiled
+		"-work":      false, // -work: print the name of the temporary work directory and do not delete it when exiting
+		"-x":         false, // -x: print the commands
+		"-tags":      true,  // -tags 'tag,list': a space-separated list of build tags to consider satisfied during the build
+		"-pkgdir":    true,  // -pkgdir dir: install and load all packages from dir instead of the usual locations
+	}
+)
+
+func ParseArgs(args []string, swflags map[string]bool) (flags, patterns []string, verbose bool) {
+	n := len(args)
+	for i := 0; i < n; i++ {
+		arg := args[i]
+		if strings.HasPrefix(arg, "-") {
+			checkFlag(arg, &i, &verbose, swflags)
+		} else {
+			flags, patterns = args[:i], args[i:]
+			return
+		}
+	}
+	flags = args
+	return
+}
+
+func SkipFlagArgs(args []string) int {
+	n := len(args)
+	for i := 0; i < n; i++ {
+		arg := args[i]
+		if strings.HasPrefix(arg, "-") {
+			checkFlag(arg, &i, nil, buildFlags)
+		} else {
+			return i
+		}
+	}
+	return -1
+}
+
+func checkFlag(arg string, i *int, verbose *bool, swflags map[string]bool) {
+	if hasarg, ok := swflags[arg]; ok {
+		if hasarg {
+			*i++
+		} else if verbose != nil && arg == "-v" {
+			*verbose = true
+		}
+	} else {
+		panic("unknown flag: " + arg)
+	}
+}
+
+func allLinkFiles(rt []*packages.Package) (outFiles []string) {
+	outFiles = make([]string, 0, len(rt))
+	root := rootLLGo(rt[0])
+	packages.Visit(rt, nil, func(p *packages.Package) {
+		pkgPath := p.PkgPath
+		if isRuntimePkg(pkgPath) {
+			outFile := filepath.Join(root+pkgPath[len(llgoModPath):], "llgo_autogen.ll")
+			outFiles = append(outFiles, outFile)
+		}
+	})
+	return
+}
+
+const (
+	pkgAbi     = llgoModPath + "/internal/abi"
+	pkgRuntime = llgoModPath + "/internal/runtime"
+)
+
+func isRuntimePkg(pkgPath string) bool {
+	switch pkgPath {
+	case pkgRuntime, pkgAbi:
+		return true
+	}
+	return false
+}
+
+// TODO(xsw): llgo root dir
+func rootLLGo(runtime *packages.Package) string {
+	return runtime.Module.Dir
+}
+
+const (
+	llgoModPath = "github.com/goplus/llgo"
+)
+
+/*
+func isPkgInLLGo(pkgPath string) bool {
+	return isPkgInMod(pkgPath, llgoModPath)
+}
+
+func isPkgInMod(pkgPath, modPath string) bool {
+	if strings.HasPrefix(pkgPath, modPath) {
+		suffix := pkgPath[len(modPath):]
+		return suffix == "" || suffix[0] == '/'
+	}
+	return false
+}
+*/
+
+func check(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
+
+// -----------------------------------------------------------------------------

internal/build/clean.go

@@ -0,0 +1,85 @@
+/*
+ * 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 build
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"path/filepath"
+
+	"golang.org/x/tools/go/packages"
+)
+
+var (
+	// TODO(xsw): complete clean flags
+	cleanFlags = map[string]bool{
+		"-v": false, // -v: print the paths of packages as they are clean
+	}
+)
+
+func Clean(args []string, conf *Config) {
+	flags, patterns, verbose := ParseArgs(args, cleanFlags)
+	cfg := &packages.Config{
+		Mode:       loadSyntax | packages.NeedExportFile,
+		BuildFlags: flags,
+	}
+
+	if patterns == nil {
+		patterns = []string{"."}
+	}
+	initial, err := packages.Load(cfg, patterns...)
+	check(err)
+
+	cleanPkgs(initial, verbose)
+
+	for _, pkg := range initial {
+		if pkg.Name == "main" {
+			cleanMainPkg(pkg, conf, verbose)
+		}
+	}
+}
+
+func cleanMainPkg(pkg *packages.Package, conf *Config, verbose bool) {
+	pkgPath := pkg.PkgPath
+	name := path.Base(pkgPath)
+	fname := name + conf.AppExt
+	app := filepath.Join(conf.BinPath, fname)
+	removeFile(app, verbose)
+	if len(pkg.CompiledGoFiles) > 0 {
+		dir := filepath.Dir(pkg.CompiledGoFiles[0])
+		buildApp := filepath.Join(dir, fname)
+		removeFile(buildApp, verbose)
+	}
+}
+
+func cleanPkgs(initial []*packages.Package, verbose bool) {
+	packages.Visit(initial, nil, func(p *packages.Package) {
+		file := p.ExportFile + ".ll"
+		removeFile(file, verbose)
+	})
+}
+
+func removeFile(file string, verbose bool) {
+	if _, err := os.Stat(file); os.IsNotExist(err) {
+		return
+	}
+	if verbose {
+		fmt.Fprintln(os.Stderr, "Remove", file)
+	}
+	os.Remove(file)
+}

internal/llgen/llgen.go

@@ -18,13 +18,14 @@ package llgen
 
 import (
 	"go/ast"
-	"go/importer"
 	"go/parser"
 	"go/token"
 	"go/types"
 	"os"
 
+	"github.com/goplus/gogen/packages"
 	"github.com/goplus/llgo/cl"
+	"github.com/goplus/llgo/internal/mod"
 	"golang.org/x/tools/go/ssa"
 	"golang.org/x/tools/go/ssa/ssautil"
 
@@ -37,28 +38,40 @@ func Init() {
 	cl.SetDebug(cl.DbgFlagAll)
 }
 
-func Do(inFile, outFile string) {
-	ret := Gen(inFile, nil)
+func PkgPath(dir string) string {
+	_, pkgPath, err := mod.Load(dir)
+	check(err)
+	return pkgPath
+}
+
+func Do(pkgPath, inFile, outFile string) {
+	ret := Gen(pkgPath, inFile, nil)
 	err := os.WriteFile(outFile, []byte(ret), 0644)
 	check(err)
 }
 
-func Gen(inFile string, src any) string {
+func Gen(pkgPath, inFile string, src any) string {
 	fset := token.NewFileSet()
 	f, err := parser.ParseFile(fset, inFile, src, parser.ParseComments)
 	check(err)
 
 	files := []*ast.File{f}
 	name := f.Name.Name
-	pkg := types.NewPackage(name, name)
+	if pkgPath == "" {
+		pkgPath = name
+	}
+	pkg := types.NewPackage(pkgPath, name)
+	imp := packages.NewImporter(fset)
 	ssaPkg, _, err := ssautil.BuildPackage(
-		&types.Config{Importer: importer.Default()}, fset, pkg, files, ssa.SanityCheckFunctions)
+		&types.Config{Importer: imp}, fset, pkg, files, ssa.SanityCheckFunctions)
 	check(err)
 
+	if Verbose {
 		ssaPkg.WriteTo(os.Stderr)
+	}
 
 	prog := llssa.NewProgram(nil)
-	ret, err := cl.NewPackage(prog, ssaPkg, nil)
+	ret, err := cl.NewPackage(prog, ssaPkg, files)
 	check(err)
 
 	return ret.String()
@@ -69,3 +82,7 @@ func check(err error) {
 		panic(err)
 	}
 }
+
+var (
+	Verbose = true
+)

internal/llgen/llgenf.go

@@ -0,0 +1,94 @@
+/*
+ * 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 llgen
+
+import (
+	"go/types"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/goplus/llgo/cl"
+	"golang.org/x/tools/go/packages"
+	"golang.org/x/tools/go/ssa"
+	"golang.org/x/tools/go/ssa/ssautil"
+
+	llssa "github.com/goplus/llgo/ssa"
+)
+
+const (
+	loadFiles   = packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles
+	loadImports = loadFiles | packages.NeedImports
+	loadTypes   = loadImports | packages.NeedTypes | packages.NeedTypesSizes
+	loadSyntax  = loadTypes | packages.NeedSyntax | packages.NeedTypesInfo
+)
+
+func GenFrom(fileOrPkg string) string {
+	cfg := &packages.Config{
+		Mode: loadSyntax | packages.NeedDeps,
+	}
+	initial, err := packages.Load(cfg, fileOrPkg)
+	check(err)
+
+	_, pkgs := ssautil.AllPackages(initial, ssa.SanityCheckFunctions)
+
+	pkg := initial[0]
+	ssaPkg := pkgs[0]
+	ssaPkg.Build()
+
+	prog := llssa.NewProgram(nil)
+	prog.SetRuntime(func() *types.Package {
+		rt, err := packages.Load(cfg, llssa.PkgRuntime)
+		check(err)
+		return rt[0].Types
+	})
+
+	if Verbose {
+		ssaPkg.WriteTo(os.Stderr)
+	}
+
+	ret, err := cl.NewPackage(prog, ssaPkg, pkg.Syntax)
+	check(err)
+
+	return ret.String()
+}
+
+func DoFile(fileOrPkg, outFile string) {
+	ret := GenFrom(fileOrPkg)
+	err := os.WriteFile(outFile, []byte(ret), 0644)
+	check(err)
+}
+
+func SmartDoFile(inFile string, pkgPath ...string) {
+	dir, _ := filepath.Split(inFile)
+	fname := "llgo_autogen.ll"
+	if inCompilerDir(dir) {
+		fname = "out.ll"
+	}
+	outFile := dir + fname
+
+	if len(pkgPath) > 0 {
+		Do(pkgPath[0], inFile, outFile)
+	} else {
+		DoFile(inFile, outFile)
+	}
+}
+
+func inCompilerDir(dir string) bool {
+	dir, _ = filepath.Abs(dir)
+	return strings.Contains(filepath.ToSlash(dir), "/llgo/cl/")
+}

internal/mod/mod.go

@@ -0,0 +1,48 @@
+/*
+ * 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 mod
+
+import (
+	"path"
+	"path/filepath"
+
+	"github.com/goplus/mod"
+	"github.com/goplus/mod/gopmod"
+)
+
+// Module represents a Go module.
+type Module = gopmod.Module
+
+// Load loads a Go module from a directory.
+func Load(dir string) (ret *Module, pkgPath string, err error) {
+	if dir, err = filepath.Abs(dir); err != nil {
+		return
+	}
+	_, gomod, err := mod.FindGoMod(dir)
+	if err != nil {
+		return
+	}
+	if ret, err = gopmod.LoadFrom(gomod, ""); err != nil {
+		return
+	}
+	relPath, err := filepath.Rel(ret.Root(), dir)
+	if err != nil {
+		return
+	}
+	pkgPath = path.Join(ret.Path(), filepath.ToSlash(relPath))
+	return
+}

internal/projs/proj.go

@@ -0,0 +1,110 @@
+/*
+ * 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 projs
+
+import (
+	"errors"
+	"path/filepath"
+	"syscall"
+)
+
+// -----------------------------------------------------------------------------
+
+type Proj = interface {
+	projObj()
+}
+
+type FilesProj struct {
+	Files []string
+}
+
+type PkgPathProj struct {
+	Path string
+}
+
+type DirProj struct {
+	Dir string
+}
+
+func (p *FilesProj) projObj()   {}
+func (p *PkgPathProj) projObj() {}
+func (p *DirProj) projObj()     {}
+
+// -----------------------------------------------------------------------------
+
+func ParseOne(args ...string) (proj Proj, next []string, err error) {
+	if len(args) == 0 {
+		return nil, nil, syscall.ENOENT
+	}
+	arg := args[0]
+	if isFile(arg) {
+		n := 1
+		for n < len(args) && isFile(args[n]) {
+			n++
+		}
+		return &FilesProj{Files: args[:n]}, args[n:], nil
+	}
+	if isLocal(arg) {
+		return &DirProj{Dir: arg}, args[1:], nil
+	}
+	return &PkgPathProj{Path: arg}, args[1:], nil
+}
+
+func isFile(fname string) bool {
+	n := len(filepath.Ext(fname))
+	return n > 1
+}
+
+func isLocal(ns string) bool {
+	if len(ns) > 0 {
+		switch c := ns[0]; c {
+		case '/', '\\', '.':
+			return true
+		default:
+			return len(ns) >= 2 && ns[1] == ':' && ('A' <= c && c <= 'Z' || 'a' <= c && c <= 'z')
+		}
+	}
+	return false
+}
+
+// -----------------------------------------------------------------------------
+
+func ParseAll(args ...string) (projs []Proj, err error) {
+	var hasFiles, hasNotFiles bool
+	for {
+		proj, next, e := ParseOne(args...)
+		if e != nil {
+			if hasFiles && hasNotFiles {
+				return nil, ErrMixedFilesProj
+			}
+			return
+		}
+		if _, ok := proj.(*FilesProj); ok {
+			hasFiles = true
+		} else {
+			hasNotFiles = true
+		}
+		projs = append(projs, proj)
+		args = next
+	}
+}
+
+var (
+	ErrMixedFilesProj = errors.New("mixed files project")
+)
+
+// -----------------------------------------------------------------------------

internal/runtime/c/c.go

@@ -0,0 +1,73 @@
+/*
+ * 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 c
+
+import "C"
+import "unsafe"
+
+const (
+	LLGoPackage = "decl"
+)
+
+type (
+	Char    = int8
+	Int     = C.int
+	Pointer = unsafe.Pointer
+	FilePtr = unsafe.Pointer
+)
+
+//go:linkname Stdin __stdinp
+var Stdin FilePtr
+
+//go:linkname Stdout __stdoutp
+var Stdout FilePtr
+
+//go:linkname Stderr __stderrp
+var Stderr FilePtr
+
+//go:linkname Str llgo.cstr
+func Str(string) *Char
+
+//go:linkname Advance llgo.advance
+func Advance(ptr Pointer, offset int) Pointer
+
+//go:linkname Alloca llgo.alloca
+func Alloca(size uintptr) Pointer
+
+//go:linkname AllocaCStr llgo.allocaCStr
+func AllocaCStr(s string) *Char
+
+//go:linkname Unreachable llgo.unreachable
+func Unreachable()
+
+//go:linkname Rand C.rand
+func Rand() Int
+
+//go:linkname Malloc C.malloc
+func Malloc(size uintptr) Pointer
+
+//go:linkname Memcpy C.memcpy
+func Memcpy(dst, src Pointer, n uintptr) Pointer
+
+//go:linkname Memset C.memset
+func Memset(s Pointer, c Int, n uintptr) Pointer
+
+//go:linkname Printf C.printf
+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

internal/runtime/llgo_autogen.ll

@@ -0,0 +1,623 @@
+; ModuleID = 'github.com/goplus/llgo/internal/runtime'
+source_filename = "github.com/goplus/llgo/internal/runtime"
+
+%"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.itab" = type { ptr, ptr, i32, [4 x i8], [1 x i64] }
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+%"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/runtime.hmap" = type { i64, i8, i8, i16, i32, ptr, ptr, i64, ptr }
+
+@"github.com/goplus/llgo/internal/runtime.TyAny" = global ptr null
+@"github.com/goplus/llgo/internal/runtime.basicTypes" = global ptr null
+@"github.com/goplus/llgo/internal/runtime.init$guard" = global ptr null
+@"github.com/goplus/llgo/internal/runtime.sizeBasicTypes" = global ptr null
+@0 = private unnamed_addr constant [21 x i8] c"I2Int: type mismatch\00", align 1
+@1 = private unnamed_addr constant [26 x i8] c"slice index out of bounds\00", align 1
+@2 = private unnamed_addr constant [33 x i8] c"string slice index out of bounds\00", align 1
+@__stderrp = external global ptr
+@3 = private unnamed_addr constant [11 x i8] c"panic: %s\0A\00", align 1
+
+define ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 %0) {
+_llgo_0:
+  %1 = call ptr @malloc(i64 %0)
+  ret ptr %1
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 %0) {
+_llgo_0:
+  %1 = call ptr @malloc(i64 %0)
+  %2 = call ptr @memset(ptr %1, i32 0, i64 %0)
+  ret ptr %2
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 %0) {
+_llgo_0:
+  %1 = getelementptr inbounds ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 %0
+  %2 = load ptr, ptr %1, align 8
+  ret ptr %2
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %0, %"github.com/goplus/llgo/internal/runtime.String" %1) {
+_llgo_0:
+  %2 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %2, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %1, ptr %3, align 8
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 1
+  %5 = load i64, ptr %4, align 4
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 0
+  %7 = load ptr, ptr %6, align 8
+  %8 = call ptr @memcpy(ptr %0, ptr %7, i64 %5)
+  %9 = getelementptr inbounds i8, ptr %0, i64 %5
+  store i8 0, ptr %9, align 1
+  ret ptr %0
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.CStrDup"(%"github.com/goplus/llgo/internal/runtime.String" %0) {
+_llgo_0:
+  %1 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %1, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %0, ptr %2, align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 1
+  %4 = load i64, ptr %3, align 4
+  %5 = add i64 %4, 1
+  %6 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 %5)
+  %7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %2, align 8
+  %8 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %6, %"github.com/goplus/llgo/internal/runtime.String" %7)
+  ret ptr %8
+}
+
+define { i64, i1 } @"github.com/goplus/llgo/internal/runtime.CheckI2Int"(%"github.com/goplus/llgo/internal/runtime.iface" %0, ptr %1) {
+_llgo_0:
+  %2 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %2, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.iface" %0, ptr %3, align 8
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %3, i32 0, i32 0
+  %5 = load ptr, ptr %4, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %5, i32 0, i32 1
+  %7 = load ptr, ptr %6, align 8
+  %8 = icmp eq ptr %7, %1
+  br i1 %8, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %3, i32 0, i32 1
+  %10 = load ptr, ptr %9, align 8
+  %11 = ptrtoint ptr %10 to i64
+  %mrv = insertvalue { i64, i1 } poison, i64 %11, 0
+  %mrv1 = insertvalue { i64, i1 } %mrv, i1 true, 1
+  ret { i64, i1 } %mrv1
+
+_llgo_2:                                          ; preds = %_llgo_0
+  ret { i64, i1 } zeroinitializer
+}
+
+define %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.EmptyString"() {
+_llgo_0:
+  %0 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %0, i64 16)
+  %2 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %1, i32 0, i32 0
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %1, i32 0, i32 1
+  store ptr null, ptr %2, align 8
+  store i64 0, ptr %3, align 4
+  %4 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %1, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.String" %4
+}
+
+define i64 @"github.com/goplus/llgo/internal/runtime.I2Int"(%"github.com/goplus/llgo/internal/runtime.iface" %0, ptr %1) {
+_llgo_0:
+  %2 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %2, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.iface" %0, ptr %3, align 8
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %3, i32 0, i32 0
+  %5 = load ptr, ptr %4, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %5, i32 0, i32 1
+  %7 = load ptr, ptr %6, align 8
+  %8 = icmp eq ptr %7, %1
+  br i1 %8, label %_llgo_1, label %_llgo_2
+
+_llgo_1:                                          ; preds = %_llgo_0
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %3, i32 0, i32 1
+  %10 = load ptr, ptr %9, align 8
+  %11 = ptrtoint ptr %10 to i64
+  ret i64 %11
+
+_llgo_2:                                          ; preds = %_llgo_0
+  %12 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @0, i64 20)
+  %13 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %12)
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %13)
+  unreachable
+}
+
+define %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAny"(ptr %0, ptr %1) {
+_llgo_0:
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %2, i32 0, i32 0
+  %4 = load ptr, ptr @"github.com/goplus/llgo/internal/runtime.TyAny", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %2, i32 0, i32 1
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %2, i32 0, i32 2
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %2, i32 0, i32 4
+  %8 = getelementptr inbounds i64, ptr %7, i64 0
+  store ptr %4, ptr %3, align 8
+  store ptr %0, ptr %5, align 8
+  store i32 0, ptr %6, align 4
+  store i64 0, ptr %8, align 4
+  %9 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %10 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %9, i64 16)
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %10, i32 0, i32 0
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %10, i32 0, i32 1
+  store ptr %2, ptr %11, align 8
+  store ptr %1, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %10, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.iface" %13
+}
+
+define %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %0, i64 %1) {
+_llgo_0:
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %2, i32 0, i32 0
+  %4 = load ptr, ptr @"github.com/goplus/llgo/internal/runtime.TyAny", align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %2, i32 0, i32 1
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %2, i32 0, i32 2
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %2, i32 0, i32 4
+  %8 = getelementptr inbounds i64, ptr %7, i64 0
+  store ptr %4, ptr %3, align 8
+  store ptr %0, ptr %5, align 8
+  store i32 0, ptr %6, align 4
+  store i64 0, ptr %8, align 4
+  %9 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %10 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %9, i64 16)
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %10, i32 0, i32 0
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %10, i32 0, i32 1
+  %13 = inttoptr i64 %1 to ptr
+  store ptr %2, ptr %11, align 8
+  store ptr %13, ptr %12, align 8
+  %14 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %10, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.iface" %14
+}
+
+define %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %0) {
+_llgo_0:
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %0, ptr %1, align 8
+  %2 = load ptr, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 24), align 8
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %3, i32 0, i32 0
+  %5 = load ptr, ptr @"github.com/goplus/llgo/internal/runtime.TyAny", align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %3, i32 0, i32 1
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %3, i32 0, i32 2
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %3, i32 0, i32 4
+  %9 = getelementptr inbounds i64, ptr %8, i64 0
+  store ptr %5, ptr %4, align 8
+  store ptr %2, ptr %6, align 8
+  store i32 0, ptr %7, align 4
+  store i64 0, ptr %9, align 4
+  %10 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %11 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %10, i64 16)
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %11, i32 0, i32 0
+  %13 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %11, i32 0, i32 1
+  store ptr %3, ptr %12, align 8
+  store ptr %1, ptr %13, align 8
+  %14 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %11, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.iface" %14
+}
+
+define %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeInterface"(ptr %0, ptr %1, ptr %2) {
+_llgo_0:
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %3, i32 0, i32 0
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %3, i32 0, i32 1
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %3, i32 0, i32 2
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %3, i32 0, i32 4
+  %8 = getelementptr inbounds i64, ptr %7, i64 0
+  store ptr %0, ptr %4, align 8
+  store ptr %1, ptr %5, align 8
+  store i32 0, ptr %6, align 4
+  store i64 0, ptr %8, align 4
+  %9 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %10 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %9, i64 16)
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %10, i32 0, i32 0
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %10, i32 0, i32 1
+  store ptr %3, ptr %11, align 8
+  store ptr %2, ptr %12, align 8
+  %13 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %10, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.iface" %13
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.MakeSmallMap"() {
+_llgo_0:
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.makemap_small"()
+  ret ptr %0
+}
+
+define %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice"(ptr %0, i64 %1, i64 %2) {
+_llgo_0:
+  %3 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %4 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %3, i64 24)
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %4, i32 0, i32 0
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %4, i32 0, i32 1
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %4, i32 0, i32 2
+  store ptr %0, ptr %5, align 8
+  store i64 %1, ptr %6, align 4
+  store i64 %2, ptr %7, align 4
+  %8 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %4, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.Slice" %8
+}
+
+define %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %0, i64 %1, i64 %2, i64 %3, i64 %4, i64 %5) {
+_llgo_0:
+  %6 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %7 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %6, i64 24)
+  %8 = icmp slt i64 %3, 0
+  br i1 %8, label %_llgo_1, label %_llgo_5
+
+_llgo_1:                                          ; preds = %_llgo_5, %_llgo_4, %_llgo_3, %_llgo_0
+  %9 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @1, i64 25)
+  %10 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %9)
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %10)
+  unreachable
+
+_llgo_2:                                          ; preds = %_llgo_3
+  %11 = sub i64 %4, %3
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %7, i32 0, i32 1
+  store i64 %11, ptr %12, align 4
+  %13 = sub i64 %5, %3
+  %14 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %7, i32 0, i32 2
+  store i64 %13, ptr %14, align 4
+  %15 = sub i64 %5, %3
+  %16 = icmp sgt i64 %15, 0
+  br i1 %16, label %_llgo_6, label %_llgo_8
+
+_llgo_3:                                          ; preds = %_llgo_4
+  %17 = icmp sgt i64 %5, %2
+  br i1 %17, label %_llgo_1, label %_llgo_2
+
+_llgo_4:                                          ; preds = %_llgo_5
+  %18 = icmp slt i64 %5, %4
+  br i1 %18, label %_llgo_1, label %_llgo_3
+
+_llgo_5:                                          ; preds = %_llgo_0
+  %19 = icmp slt i64 %4, %3
+  br i1 %19, label %_llgo_1, label %_llgo_4
+
+_llgo_6:                                          ; preds = %_llgo_2
+  %20 = mul i64 %3, %1
+  %21 = getelementptr i8, ptr %0, i64 %20
+  %22 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %7, i32 0, i32 0
+  store ptr %21, ptr %22, align 8
+  br label %_llgo_7
+
+_llgo_7:                                          ; preds = %_llgo_8, %_llgo_6
+  %23 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %7, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.Slice" %23
+
+_llgo_8:                                          ; preds = %_llgo_2
+  %24 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %7, i32 0, i32 0
+  store ptr %0, ptr %24, align 8
+  br label %_llgo_7
+}
+
+define %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr %0, i64 %1) {
+_llgo_0:
+  %2 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %2, i64 16)
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 0
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 1
+  store ptr %0, ptr %4, align 8
+  store i64 %1, ptr %5, align 4
+  %6 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %3, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.String" %6
+}
+
+define %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewStringSlice"(%"github.com/goplus/llgo/internal/runtime.String" %0, i64 %1, i64 %2) {
+_llgo_0:
+  %3 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %4 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %3, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %0, ptr %4, align 8
+  %5 = icmp slt i64 %1, 0
+  br i1 %5, label %_llgo_1, label %_llgo_4
+
+_llgo_1:                                          ; preds = %_llgo_4, %_llgo_3, %_llgo_0
+  %6 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @2, i64 32)
+  %7 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String" %6)
+  call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %7)
+  unreachable
+
+_llgo_2:                                          ; preds = %_llgo_3
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  %9 = load i64, ptr %8, align 4
+  %10 = icmp slt i64 %1, %9
+  br i1 %10, label %_llgo_5, label %_llgo_6
+
+_llgo_3:                                          ; preds = %_llgo_4
+  %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  %12 = load i64, ptr %11, align 4
+  %13 = icmp sgt i64 %2, %12
+  br i1 %13, label %_llgo_1, label %_llgo_2
+
+_llgo_4:                                          ; preds = %_llgo_0
+  %14 = icmp slt i64 %2, %1
+  br i1 %14, label %_llgo_1, label %_llgo_3
+
+_llgo_5:                                          ; preds = %_llgo_2
+  %15 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %16 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %15, i64 16)
+  %17 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %16, i32 0, i32 0
+  %18 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
+  %19 = load ptr, ptr %18, align 8
+  %20 = getelementptr i8, ptr %19, i64 %1
+  %21 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %16, i32 0, i32 1
+  %22 = sub i64 %2, %1
+  store ptr %20, ptr %17, align 8
+  store i64 %22, ptr %21, align 4
+  %23 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %16, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.String" %23
+
+_llgo_6:                                          ; preds = %_llgo_2
+  %24 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %25 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %24, i64 16)
+  %26 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %25, i32 0, i32 0
+  %27 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %25, i32 0, i32 1
+  store ptr null, ptr %26, align 8
+  store i64 0, ptr %27, align 4
+  %28 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %25, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.String" %28
+}
+
+define %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NilSlice"() {
+_llgo_0:
+  %0 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %0, i64 24)
+  %2 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %1, i32 0, i32 0
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %1, i32 0, i32 1
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %1, i32 0, i32 2
+  store ptr null, ptr %2, align 8
+  store i64 0, ptr %3, align 4
+  store i64 0, ptr %4, align 4
+  %5 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %1, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.Slice" %5
+}
+
+define i64 @"github.com/goplus/llgo/internal/runtime.SliceCap"(%"github.com/goplus/llgo/internal/runtime.Slice" %0) {
+_llgo_0:
+  %1 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %1, i64 24)
+  store %"github.com/goplus/llgo/internal/runtime.Slice" %0, ptr %2, align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %2, i32 0, i32 2
+  %4 = load i64, ptr %3, align 4
+  ret i64 %4
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.SliceData"(%"github.com/goplus/llgo/internal/runtime.Slice" %0) {
+_llgo_0:
+  %1 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %1, i64 24)
+  store %"github.com/goplus/llgo/internal/runtime.Slice" %0, ptr %2, align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %2, i32 0, i32 0
+  %4 = load ptr, ptr %3, align 8
+  ret ptr %4
+}
+
+define i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %0) {
+_llgo_0:
+  %1 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %1, i64 24)
+  store %"github.com/goplus/llgo/internal/runtime.Slice" %0, ptr %2, align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %2, i32 0, i32 1
+  %4 = load i64, ptr %3, align 4
+  ret i64 %4
+}
+
+define %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.StringCat"(%"github.com/goplus/llgo/internal/runtime.String" %0, %"github.com/goplus/llgo/internal/runtime.String" %1) {
+_llgo_0:
+  %2 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %2, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %0, ptr %3, align 8
+  %4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %5 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %4, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %1, ptr %5, align 8
+  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 1
+  %7 = load i64, ptr %6, align 4
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %5, i32 0, i32 1
+  %9 = load i64, ptr %8, align 4
+  %10 = add i64 %7, %9
+  %11 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 %10)
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 0
+  %13 = load ptr, ptr %12, align 8
+  %14 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 1
+  %15 = load i64, ptr %14, align 4
+  %16 = call ptr @memcpy(ptr %11, ptr %13, i64 %15)
+  %17 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 1
+  %18 = load i64, ptr %17, align 4
+  %19 = getelementptr i8, ptr %11, i64 %18
+  %20 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %5, i32 0, i32 0
+  %21 = load ptr, ptr %20, align 8
+  %22 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %5, i32 0, i32 1
+  %23 = load i64, ptr %22, align 4
+  %24 = call ptr @memcpy(ptr %19, ptr %21, i64 %23)
+  %25 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %26 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %25, i64 16)
+  %27 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %26, i32 0, i32 0
+  %28 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %26, i32 0, i32 1
+  store ptr %11, ptr %27, align 8
+  store i64 %10, ptr %28, align 4
+  %29 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %26, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.String" %29
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.StringData"(%"github.com/goplus/llgo/internal/runtime.String" %0) {
+_llgo_0:
+  %1 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %1, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %0, ptr %2, align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 0
+  %4 = load ptr, ptr %3, align 8
+  ret ptr %4
+}
+
+define i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %0) {
+_llgo_0:
+  %1 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %1, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %0, ptr %2, align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 1
+  %4 = load i64, ptr %3, align 4
+  ret i64 %4
+}
+
+define void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.iface" %0) {
+_llgo_0:
+  %1 = alloca %"github.com/goplus/llgo/internal/runtime.iface", align 8
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %1, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.iface" %0, ptr %2, align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %2, i32 0, i32 0
+  %4 = load ptr, ptr %3, align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.itab", ptr %4, i32 0, i32 1
+  %6 = load ptr, ptr %5, align 8
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %6, i32 0, i32 6
+  %8 = load i8, ptr %7, align 1
+  %9 = sext i8 %8 to i64
+  %10 = icmp eq i64 %9, 24
+  br i1 %10, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_2, %_llgo_0
+  ret void
+
+_llgo_2:                                          ; preds = %_llgo_0
+  %11 = load ptr, ptr @__stderrp, align 8
+  %12 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %2, i32 0, i32 1
+  %13 = load ptr, ptr %12, align 8
+  %14 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %13, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.stringTracef"(ptr %11, ptr @3, %"github.com/goplus/llgo/internal/runtime.String" %14)
+  br label %_llgo_1
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %0, i64 %1) {
+_llgo_0:
+  %2 = call ptr @memset(ptr %0, i32 0, i64 %1)
+  ret ptr %2
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 %0) {
+_llgo_0:
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 56)
+  %2 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %1, i32 0, i32 0
+  %3 = getelementptr inbounds i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 %0
+  %4 = load i64, ptr %3, align 4
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %1, i32 0, i32 2
+  %6 = trunc i64 %0 to i32
+  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/abi.Type", ptr %1, i32 0, i32 6
+  %8 = trunc i64 %0 to i8
+  store i64 %4, ptr %2, align 4
+  store i32 %6, ptr %5, align 4
+  store i8 %8, ptr %7, align 1
+  ret ptr %1
+}
+
+declare i32 @rand()
+
+define void @"github.com/goplus/llgo/internal/runtime.init"() {
+_llgo_0:
+  %0 = load i1, ptr @"github.com/goplus/llgo/internal/runtime.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"github.com/goplus/llgo/internal/runtime.init$guard", align 1
+  call void @"github.com/goplus/llgo/internal/abi.init"()
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 88)
+  store ptr %1, ptr @"github.com/goplus/llgo/internal/runtime.TyAny", align 8
+  store i64 1, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 1), align 4
+  store i64 8, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 2), align 4
+  store i64 1, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 3), align 4
+  store i64 2, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 4), align 4
+  store i64 4, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 5), align 4
+  store i64 8, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 6), align 4
+  store i64 8, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 7), align 4
+  store i64 1, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 8), align 4
+  store i64 2, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 9), align 4
+  store i64 4, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 10), align 4
+  store i64 8, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 11), align 4
+  store i64 8, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 12), align 4
+  store i64 4, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 13), align 4
+  store i64 8, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 14), align 4
+  store i64 8, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 15), align 4
+  store i64 16, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 16), align 4
+  store i64 16, ptr getelementptr inbounds (i64, ptr @"github.com/goplus/llgo/internal/runtime.sizeBasicTypes", i64 24), align 4
+  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 1)
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 2)
+  %4 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 3)
+  %5 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 4)
+  %6 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 5)
+  %7 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 6)
+  %8 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 7)
+  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 8)
+  %10 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 9)
+  %11 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 10)
+  %12 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 11)
+  %13 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 12)
+  %14 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 13)
+  %15 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 14)
+  %16 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 15)
+  %17 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 16)
+  %18 = call ptr @"github.com/goplus/llgo/internal/runtime.basicType"(i64 24)
+  store ptr %2, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 1), align 8
+  store ptr %3, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 2), align 8
+  store ptr %4, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 3), align 8
+  store ptr %5, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 4), align 8
+  store ptr %6, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 5), align 8
+  store ptr %7, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 6), align 8
+  store ptr %8, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 7), align 8
+  store ptr %9, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 8), align 8
+  store ptr %10, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 9), align 8
+  store ptr %11, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 10), align 8
+  store ptr %12, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 11), align 8
+  store ptr %13, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 12), align 8
+  store ptr %14, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 13), align 8
+  store ptr %15, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 14), align 8
+  store ptr %16, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 15), align 8
+  store ptr %17, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 16), align 8
+  store ptr %18, ptr getelementptr inbounds (ptr, ptr @"github.com/goplus/llgo/internal/runtime.basicTypes", i64 24), align 8
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i1 @"github.com/goplus/llgo/internal/runtime.isEmpty"(i8 %0) {
+_llgo_0:
+  %1 = icmp ule i8 %0, 1
+  ret i1 %1
+}
+
+define ptr @"github.com/goplus/llgo/internal/runtime.makemap_small"() {
+_llgo_0:
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 48)
+  %1 = call i32 @rand()
+  %2 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.hmap", ptr %0, i32 0, i32 4
+  store i32 %1, ptr %2, align 4
+  ret ptr %0
+}
+
+define void @"github.com/goplus/llgo/internal/runtime.stringTracef"(ptr %0, ptr %1, %"github.com/goplus/llgo/internal/runtime.String" %2) {
+_llgo_0:
+  %3 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %4 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %3, i64 16)
+  store %"github.com/goplus/llgo/internal/runtime.String" %2, ptr %4, align 8
+  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
+  %6 = load i64, ptr %5, align 4
+  %7 = add i64 %6, 1
+  %8 = alloca i8, i64 %7, align 1
+  %9 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
+  %10 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %8, %"github.com/goplus/llgo/internal/runtime.String" %9)
+  %11 = call i32 (ptr, ptr, ...) @fprintf(ptr %0, ptr %1, ptr %10)
+  ret void
+}
+
+declare ptr @malloc(i64)
+
+declare ptr @memset(ptr, i32, i64)
+
+declare ptr @memcpy(ptr, ptr, i64)
+
+declare void @"github.com/goplus/llgo/internal/abi.init"()
+
+declare i32 @fprintf(ptr, ptr, ...)

internal/runtime/runtime2.go

@@ -0,0 +1,37 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import (
+	"unsafe"
+)
+
+type iface struct {
+	tab  *itab
+	data unsafe.Pointer
+}
+
+/*
+type eface struct {
+	_type *_type
+	data  unsafe.Pointer
+}
+
+func efaceOf(ep *any) *eface {
+	return (*eface)(unsafe.Pointer(ep))
+}
+*/
+
+// layout of Itab known to compilers
+// allocated in non-garbage-collected memory
+// Needs to be in sync with
+// ../cmd/compile/internal/reflectdata/reflect.go:/^func.WriteTabs.
+type itab struct {
+	inter *interfacetype
+	_type *_type
+	hash  uint32 // copy of _type.hash. Used for type switches.
+	_     [4]byte
+	fun   [1]uintptr // variable sized. fun[0]==0 means _type does not implement inter.
+}

internal/runtime/stubs.go

@@ -0,0 +1,38 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import _ "unsafe"
+
+//go:linkname fastrand C.rand
+func fastrand() uint32
+
+/* TODO(xsw):
+func fastrand() uint32 {
+	mp := getg().m
+	// Implement wyrand: https://github.com/wangyi-fudan/wyhash
+	// Only the platform that math.Mul64 can be lowered
+	// by the compiler should be in this list.
+	if goarch.IsAmd64|goarch.IsArm64|goarch.IsPpc64|
+		goarch.IsPpc64le|goarch.IsMips64|goarch.IsMips64le|
+		goarch.IsS390x|goarch.IsRiscv64|goarch.IsLoong64 == 1 {
+		mp.fastrand += 0xa0761d6478bd642f
+		hi, lo := math.Mul64(mp.fastrand, mp.fastrand^0xe7037ed1a0b428db)
+		return uint32(hi ^ lo)
+	}
+
+	// Implement xorshift64+: 2 32-bit xorshift sequences added together.
+	// Shift triplet [17,7,16] was calculated as indicated in Marsaglia's
+	// Xorshift paper: https://www.jstatsoft.org/article/view/v008i14/xorshift.pdf
+	// This generator passes the SmallCrush suite, part of TestU01 framework:
+	// http://simul.iro.umontreal.ca/testu01/tu01.html
+	t := (*[2]uint32)(unsafe.Pointer(&mp.fastrand))
+	s1, s0 := t[0], t[1]
+	s1 ^= s1 << 17
+	s1 = s1 ^ s0 ^ s1>>7 ^ s0>>16
+	t[0], t[1] = s0, s1
+	return s0 + s1
+}
+*/