From 89b111edcafb0d9d002ae9847dc81d5379673c64 Mon Sep 17 00:00:00 2001
From: Li Jie <cpunion@gmail.com>
Date: Wed, 13 Nov 2024 16:38:22 +0800
Subject: [PATCH] cgo: examples

---
 .../in.go => _demo/cgobasic/cgobasic.go       |   0
 _demo/cgocfiles/cgocfiles.go                  |  21 +
 _demo/cgocfiles/in.c                          |  12 +
 _demo/cgocfiles/in.h                          |  33 ++
 _demo/cgopython/cgopython.go                  |  18 +
 cl/_testgo/cgobase/out.ll                     | 479 ------------------
 6 files changed, 84 insertions(+), 479 deletions(-)
 rename cl/_testgo/cgobase/in.go => _demo/cgobasic/cgobasic.go (100%)
 create mode 100644 _demo/cgocfiles/cgocfiles.go
 create mode 100644 _demo/cgocfiles/in.c
 create mode 100644 _demo/cgocfiles/in.h
 create mode 100644 _demo/cgopython/cgopython.go
 delete mode 100644 cl/_testgo/cgobase/out.ll

diff --git a/cl/_testgo/cgobase/in.go b/_demo/cgobasic/cgobasic.go
similarity index 100%
rename from cl/_testgo/cgobase/in.go
rename to _demo/cgobasic/cgobasic.go
diff --git a/_demo/cgocfiles/cgocfiles.go b/_demo/cgocfiles/cgocfiles.go
new file mode 100644
index 00000000..91d21f57
--- /dev/null
+++ b/_demo/cgocfiles/cgocfiles.go
@@ -0,0 +1,21 @@
+package main
+
+/*
+#include "in.h"
+*/
+import "C"
+import "fmt"
+
+// TODO(lijie): workaround for c files compiling
+const (
+	LLGoFiles   = "in.c"
+	LLGoPackage = "link"
+)
+
+func main() {
+	r := C.test_structs(&C.s4{a: 1}, &C.s8{a: 1, b: 2}, &C.s12{a: 1, b: 2, c: 3}, &C.s16{a: 1, b: 2, c: 3, d: 4}, &C.s20{a: 1, b: 2, c: 3, d: 4, e: 5})
+	fmt.Println(r)
+	if r != 35 {
+		panic("test_structs failed")
+	}
+}
diff --git a/_demo/cgocfiles/in.c b/_demo/cgocfiles/in.c
new file mode 100644
index 00000000..9cb621df
--- /dev/null
+++ b/_demo/cgocfiles/in.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include "in.h"
+
+int test_structs(s4* s4, s8* s8, s12* s12, s16* s16, s20* s20) {
+  printf("s4.a: %d\n", s4->a);
+  printf("s8.a: %d, s8.b: %d\n", s8->a, s8->b);
+  printf("s12.a: %d, s12.b: %d, s12.c: %d\n", s12->a, s12->b, s12->c);
+  printf("s16.a: %d, s16.b: %d, s16.c: %d, s16.d: %d\n", s16->a, s16->b, s16->c, s16->d);
+  printf("s20.a: %d, s20.b: %d, s20.c: %d, s20.d: %d, s20.e: %d\n", s20->a, s20->b, s20->c, s20->d, s20->e);
+
+  return s4->a + s8->a + s8->b + s12->a + s12->b + s12->c + s16->a + s16->b + s16->c + s16->d + s20->a + s20->b + s20->c + s20->d + s20->e;
+}
diff --git a/_demo/cgocfiles/in.h b/_demo/cgocfiles/in.h
new file mode 100644
index 00000000..87daf421
--- /dev/null
+++ b/_demo/cgocfiles/in.h
@@ -0,0 +1,33 @@
+#pragma once
+
+typedef struct {
+	int a;
+} s4;
+
+typedef struct {
+  int a;
+  int b;
+} s8;
+
+typedef struct {
+  int a;
+  int b;
+  int c;
+} s12;
+
+typedef struct {
+  int a;
+  int b;
+  int c;
+  int d;
+} s16;
+
+typedef struct {
+  int a;
+  int b;
+  int c;
+  int d;
+  int e;
+} s20;
+
+extern int test_structs(s4* s4, s8* s8, s12* s12, s16* s16, s20* s20);
diff --git a/_demo/cgopython/cgopython.go b/_demo/cgopython/cgopython.go
new file mode 100644
index 00000000..2b506b07
--- /dev/null
+++ b/_demo/cgopython/cgopython.go
@@ -0,0 +1,18 @@
+package main
+
+/*
+#cgo pkg-config: python3-embed
+#include <Python.h>
+*/
+import "C"
+
+// TODO(lijie): workaround for cgo pkg-config not working
+const (
+	LLGoPackage = "link: $LLGO_LIB_PYTHON; $(pkg-config --libs python3-embed)"
+)
+
+func main() {
+	C.Py_Initialize()
+	defer C.Py_Finalize()
+	C.PyRun_SimpleString(C.CString("print('Hello, Python!')"))
+}
diff --git a/cl/_testgo/cgobase/out.ll b/cl/_testgo/cgobase/out.ll
deleted file mode 100644
index 2acb5b16..00000000
--- a/cl/_testgo/cgobase/out.ll
+++ /dev/null
@@ -1,479 +0,0 @@
-; ModuleID = 'main'
-source_filename = "main"
-
-%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
-%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
-%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
-%"github.com/goplus/llgo/internal/runtime.iface" = type { ptr, ptr }
-
-@"main.init$guard" = global i1 false, align 1
-@_cgo_fc2717469476_Cfunc_cos = external global i8, align 1
-@_cgo_fc2717469476_Cfunc_free = external global i8, align 1
-@_cgo_fc2717469476_Cfunc_log = external global i8, align 1
-@_cgo_fc2717469476_Cfunc_puts = external global i8, align 1
-@_cgo_fc2717469476_Cfunc_sin = external global i8, align 1
-@_cgo_fc2717469476_Cfunc_sqrt = external global i8, align 1
-@_cgo_fc2717469476_Cfunc__Cmalloc = external global i8, align 1
-@__llgo_argc = global i32 0, align 4
-@__llgo_argv = global ptr null, align 8
-@0 = private unnamed_addr constant [13 x i8] c"Hello, World!", align 1
-@1 = private unnamed_addr constant [29 x i8] c"Converted back to Go string: ", align 1
-@2 = private unnamed_addr constant [23 x i8] c"Length-limited string: ", align 1
-@3 = private unnamed_addr constant [33 x i8] c"Converted back to Go byte slice: ", align 1
-@_llgo_float64 = linkonce global ptr null, align 8
-@4 = private unnamed_addr constant [14 x i8] c"sqrt(%v) = %v\0A", align 1
-@5 = private unnamed_addr constant [13 x i8] c"sin(%v) = %v\0A", align 1
-@6 = private unnamed_addr constant [13 x i8] c"cos(%v) = %v\0A", align 1
-@7 = private unnamed_addr constant [13 x i8] c"log(%v) = %v\0A", align 1
-@_llgo_byte = linkonce global ptr null, align 8
-@"[]_llgo_byte" = linkonce global ptr null, align 8
-@_llgo_Pointer = linkonce global ptr null, align 8
-
-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 @syscall.init()
-  call void @fmt.init()
-  call void @"main.init$after"()
-  br label %_llgo_2
-
-_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
-  ret void
-}
-
-define i32 @main(i32 %0, ptr %1) {
-_llgo_0:
-  store i32 %0, ptr @__llgo_argc, align 4
-  store ptr %1, ptr @__llgo_argv, align 8
-  call void @"github.com/goplus/llgo/internal/runtime.init"()
-  call void @main.init()
-  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
-  %3 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 0
-  store ptr @0, ptr %4, align 8
-  %5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %3, i32 0, i32 1
-  store i64 13, ptr %5, align 4
-  %6 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %3, align 8
-  %7 = call ptr @"github.com/goplus/llgo/internal/runtime.CString"(%"github.com/goplus/llgo/internal/runtime.String" %6)
-  store ptr %7, ptr %2, align 8
-  %8 = load ptr, ptr %2, align 8
-  %9 = call i32 @puts(ptr %8)
-  %10 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 24)
-  %11 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 4)
-  %12 = getelementptr inbounds i8, ptr %11, i64 0
-  store i8 65, ptr %12, align 1
-  %13 = getelementptr inbounds i8, ptr %11, i64 1
-  store i8 66, ptr %13, align 1
-  %14 = getelementptr inbounds i8, ptr %11, i64 2
-  store i8 67, ptr %14, align 1
-  %15 = getelementptr inbounds i8, ptr %11, i64 3
-  store i8 68, ptr %15, align 1
-  %16 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
-  %17 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %16, i32 0, i32 0
-  store ptr %11, ptr %17, align 8
-  %18 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %16, i32 0, i32 1
-  store i64 4, ptr %18, align 4
-  %19 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %16, i32 0, i32 2
-  store i64 4, ptr %19, align 4
-  %20 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %16, align 8
-  store %"github.com/goplus/llgo/internal/runtime.Slice" %20, ptr %10, align 8
-  %21 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
-  %22 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
-  %23 = getelementptr inbounds { ptr }, ptr %22, i32 0, i32 0
-  store ptr %10, ptr %23, align 8
-  %24 = alloca { ptr, ptr }, align 8
-  %25 = getelementptr inbounds { ptr, ptr }, ptr %24, i32 0, i32 0
-  store ptr @"main.main$1", ptr %25, align 8
-  %26 = getelementptr inbounds { ptr, ptr }, ptr %24, i32 0, i32 1
-  store ptr %22, ptr %26, align 8
-  %27 = load { ptr, ptr }, ptr %24, align 8
-  %28 = extractvalue { ptr, ptr } %27, 1
-  %29 = extractvalue { ptr, ptr } %27, 0
-  %30 = call ptr %29(ptr %28)
-  store ptr %30, ptr %21, align 8
-  %31 = load ptr, ptr %2, align 8
-  %32 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.GoString"(ptr %31)
-  %33 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %34 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %33, i32 0, i32 0
-  store ptr @1, ptr %34, align 8
-  %35 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %33, i32 0, i32 1
-  store i64 29, ptr %35, align 4
-  %36 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %33, align 8
-  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %36)
-  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
-  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %32)
-  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
-  %37 = load ptr, ptr %2, align 8
-  %38 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.GoStringN"(ptr %37, i32 5)
-  %39 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %40 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %39, i32 0, i32 0
-  store ptr @2, ptr %40, align 8
-  %41 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %39, i32 0, i32 1
-  store i64 23, ptr %41, align 4
-  %42 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %39, align 8
-  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %42)
-  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
-  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %38)
-  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
-  %43 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
-  %44 = getelementptr inbounds { ptr }, ptr %43, i32 0, i32 0
-  store ptr %21, ptr %44, align 8
-  %45 = alloca { ptr, ptr }, align 8
-  %46 = getelementptr inbounds { ptr, ptr }, ptr %45, i32 0, i32 0
-  store ptr @"main.main$2", ptr %46, align 8
-  %47 = getelementptr inbounds { ptr, ptr }, ptr %45, i32 0, i32 1
-  store ptr %43, ptr %47, align 8
-  %48 = load { ptr, ptr }, ptr %45, align 8
-  %49 = extractvalue { ptr, ptr } %48, 1
-  %50 = extractvalue { ptr, ptr } %48, 0
-  %51 = call %"github.com/goplus/llgo/internal/runtime.Slice" %50(ptr %49)
-  %52 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %53 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %52, i32 0, i32 0
-  store ptr @3, ptr %53, align 8
-  %54 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %52, i32 0, i32 1
-  store i64 33, ptr %54, align 4
-  %55 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %52, align 8
-  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %55)
-  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
-  call void @"github.com/goplus/llgo/internal/runtime.PrintSlice"(%"github.com/goplus/llgo/internal/runtime.Slice" %51)
-  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
-  %56 = call double @sqrt(double 2.000000e+00)
-  %57 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
-  %58 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %57, i64 0
-  %59 = load ptr, ptr @_llgo_float64, align 8
-  %60 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %61 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %60, i32 0, i32 0
-  store ptr %59, ptr %61, align 8
-  %62 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %60, i32 0, i32 1
-  store ptr inttoptr (i64 4611686018427387904 to ptr), ptr %62, align 8
-  %63 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %60, align 8
-  store %"github.com/goplus/llgo/internal/runtime.eface" %63, ptr %58, align 8
-  %64 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %57, i64 1
-  %65 = load ptr, ptr @_llgo_float64, align 8
-  %66 = bitcast double %56 to i64
-  %67 = inttoptr i64 %66 to ptr
-  %68 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %69 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %68, i32 0, i32 0
-  store ptr %65, ptr %69, align 8
-  %70 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %68, i32 0, i32 1
-  store ptr %67, ptr %70, align 8
-  %71 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %68, align 8
-  store %"github.com/goplus/llgo/internal/runtime.eface" %71, ptr %64, align 8
-  %72 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
-  %73 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %72, i32 0, i32 0
-  store ptr %57, ptr %73, align 8
-  %74 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %72, i32 0, i32 1
-  store i64 2, ptr %74, align 4
-  %75 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %72, i32 0, i32 2
-  store i64 2, ptr %75, align 4
-  %76 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %72, align 8
-  %77 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %78 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %77, i32 0, i32 0
-  store ptr @4, ptr %78, align 8
-  %79 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %77, i32 0, i32 1
-  store i64 14, ptr %79, align 4
-  %80 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %77, align 8
-  %81 = call { i64, %"github.com/goplus/llgo/internal/runtime.iface" } @fmt.Printf(%"github.com/goplus/llgo/internal/runtime.String" %80, %"github.com/goplus/llgo/internal/runtime.Slice" %76)
-  %82 = call double @sin(double 2.000000e+00)
-  %83 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
-  %84 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %83, i64 0
-  %85 = load ptr, ptr @_llgo_float64, align 8
-  %86 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %87 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %86, i32 0, i32 0
-  store ptr %85, ptr %87, align 8
-  %88 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %86, i32 0, i32 1
-  store ptr inttoptr (i64 4611686018427387904 to ptr), ptr %88, align 8
-  %89 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %86, align 8
-  store %"github.com/goplus/llgo/internal/runtime.eface" %89, ptr %84, align 8
-  %90 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %83, i64 1
-  %91 = load ptr, ptr @_llgo_float64, align 8
-  %92 = bitcast double %82 to i64
-  %93 = inttoptr i64 %92 to ptr
-  %94 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %95 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %94, i32 0, i32 0
-  store ptr %91, ptr %95, align 8
-  %96 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %94, i32 0, i32 1
-  store ptr %93, ptr %96, align 8
-  %97 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %94, align 8
-  store %"github.com/goplus/llgo/internal/runtime.eface" %97, ptr %90, align 8
-  %98 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
-  %99 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %98, i32 0, i32 0
-  store ptr %83, ptr %99, align 8
-  %100 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %98, i32 0, i32 1
-  store i64 2, ptr %100, align 4
-  %101 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %98, i32 0, i32 2
-  store i64 2, ptr %101, align 4
-  %102 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %98, align 8
-  %103 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %104 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %103, i32 0, i32 0
-  store ptr @5, ptr %104, align 8
-  %105 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %103, i32 0, i32 1
-  store i64 13, ptr %105, align 4
-  %106 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %103, align 8
-  %107 = call { i64, %"github.com/goplus/llgo/internal/runtime.iface" } @fmt.Printf(%"github.com/goplus/llgo/internal/runtime.String" %106, %"github.com/goplus/llgo/internal/runtime.Slice" %102)
-  %108 = call double @cos(double 2.000000e+00)
-  %109 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
-  %110 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %109, i64 0
-  %111 = load ptr, ptr @_llgo_float64, align 8
-  %112 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %113 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %112, i32 0, i32 0
-  store ptr %111, ptr %113, align 8
-  %114 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %112, i32 0, i32 1
-  store ptr inttoptr (i64 4611686018427387904 to ptr), ptr %114, align 8
-  %115 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %112, align 8
-  store %"github.com/goplus/llgo/internal/runtime.eface" %115, ptr %110, align 8
-  %116 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %109, i64 1
-  %117 = load ptr, ptr @_llgo_float64, align 8
-  %118 = bitcast double %108 to i64
-  %119 = inttoptr i64 %118 to ptr
-  %120 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %121 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %120, i32 0, i32 0
-  store ptr %117, ptr %121, align 8
-  %122 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %120, i32 0, i32 1
-  store ptr %119, ptr %122, align 8
-  %123 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %120, align 8
-  store %"github.com/goplus/llgo/internal/runtime.eface" %123, ptr %116, align 8
-  %124 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
-  %125 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %124, i32 0, i32 0
-  store ptr %109, ptr %125, align 8
-  %126 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %124, i32 0, i32 1
-  store i64 2, ptr %126, align 4
-  %127 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %124, i32 0, i32 2
-  store i64 2, ptr %127, align 4
-  %128 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %124, align 8
-  %129 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %130 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %129, i32 0, i32 0
-  store ptr @6, ptr %130, align 8
-  %131 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %129, i32 0, i32 1
-  store i64 13, ptr %131, align 4
-  %132 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %129, align 8
-  %133 = call { i64, %"github.com/goplus/llgo/internal/runtime.iface" } @fmt.Printf(%"github.com/goplus/llgo/internal/runtime.String" %132, %"github.com/goplus/llgo/internal/runtime.Slice" %128)
-  %134 = call double @log(double 2.000000e+00)
-  %135 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 32)
-  %136 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %135, i64 0
-  %137 = load ptr, ptr @_llgo_float64, align 8
-  %138 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %139 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %138, i32 0, i32 0
-  store ptr %137, ptr %139, align 8
-  %140 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %138, i32 0, i32 1
-  store ptr inttoptr (i64 4611686018427387904 to ptr), ptr %140, align 8
-  %141 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %138, align 8
-  store %"github.com/goplus/llgo/internal/runtime.eface" %141, ptr %136, align 8
-  %142 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %135, i64 1
-  %143 = load ptr, ptr @_llgo_float64, align 8
-  %144 = bitcast double %134 to i64
-  %145 = inttoptr i64 %144 to ptr
-  %146 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %147 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %146, i32 0, i32 0
-  store ptr %143, ptr %147, align 8
-  %148 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %146, i32 0, i32 1
-  store ptr %145, ptr %148, align 8
-  %149 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %146, align 8
-  store %"github.com/goplus/llgo/internal/runtime.eface" %149, ptr %142, align 8
-  %150 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
-  %151 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %150, i32 0, i32 0
-  store ptr %135, ptr %151, align 8
-  %152 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %150, i32 0, i32 1
-  store i64 2, ptr %152, align 4
-  %153 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %150, i32 0, i32 2
-  store i64 2, ptr %153, align 4
-  %154 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %150, align 8
-  %155 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
-  %156 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %155, i32 0, i32 0
-  store ptr @7, ptr %156, align 8
-  %157 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %155, i32 0, i32 1
-  store i64 13, ptr %157, align 4
-  %158 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %155, align 8
-  %159 = call { i64, %"github.com/goplus/llgo/internal/runtime.iface" } @fmt.Printf(%"github.com/goplus/llgo/internal/runtime.String" %158, %"github.com/goplus/llgo/internal/runtime.Slice" %154)
-  %160 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
-  %161 = getelementptr inbounds { ptr }, ptr %160, i32 0, i32 0
-  store ptr %2, ptr %161, align 8
-  %162 = alloca { ptr, ptr }, align 8
-  %163 = getelementptr inbounds { ptr, ptr }, ptr %162, i32 0, i32 0
-  store ptr @"main.main$3", ptr %163, align 8
-  %164 = getelementptr inbounds { ptr, ptr }, ptr %162, i32 0, i32 1
-  store ptr %160, ptr %164, align 8
-  %165 = load { ptr, ptr }, ptr %162, align 8
-  %166 = extractvalue { ptr, ptr } %165, 1
-  %167 = extractvalue { ptr, ptr } %165, 0
-  call void %167(ptr %166)
-  %168 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
-  %169 = getelementptr inbounds { ptr }, ptr %168, i32 0, i32 0
-  store ptr %21, ptr %169, align 8
-  %170 = alloca { ptr, ptr }, align 8
-  %171 = getelementptr inbounds { ptr, ptr }, ptr %170, i32 0, i32 0
-  store ptr @"main.main$4", ptr %171, align 8
-  %172 = getelementptr inbounds { ptr, ptr }, ptr %170, i32 0, i32 1
-  store ptr %168, ptr %172, align 8
-  %173 = load { ptr, ptr }, ptr %170, align 8
-  %174 = extractvalue { ptr, ptr } %173, 1
-  %175 = extractvalue { ptr, ptr } %173, 0
-  call void %175(ptr %174)
-  ret i32 0
-}
-
-define ptr @"main.main$1"(ptr %0) {
-_llgo_0:
-  %1 = load { ptr }, ptr %0, align 8
-  %2 = extractvalue { ptr } %1, 0
-  %3 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %2, align 8
-  %4 = load ptr, ptr @_llgo_byte, align 8
-  %5 = load ptr, ptr @"[]_llgo_byte", align 8
-  %6 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 24)
-  store %"github.com/goplus/llgo/internal/runtime.Slice" %3, ptr %6, align 8
-  %7 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %7, i32 0, i32 0
-  store ptr %5, ptr %8, align 8
-  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %7, i32 0, i32 1
-  store ptr %6, ptr %9, align 8
-  %10 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %7, align 8
-  %11 = call ptr @"github.com/goplus/llgo/internal/runtime.CBytes"(%"github.com/goplus/llgo/internal/runtime.Slice" %3)
-  ret ptr %11
-}
-
-define %"github.com/goplus/llgo/internal/runtime.Slice" @"main.main$2"(ptr %0) {
-_llgo_0:
-  %1 = load { ptr }, ptr %0, align 8
-  %2 = extractvalue { ptr } %1, 0
-  %3 = load ptr, ptr %2, align 8
-  %4 = load ptr, ptr @_llgo_Pointer, align 8
-  %5 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, i32 0, i32 0
-  store ptr %4, ptr %6, align 8
-  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, i32 0, i32 1
-  store ptr %3, ptr %7, align 8
-  %8 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, align 8
-  %9 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.GoBytes"(ptr %3, i32 4)
-  ret %"github.com/goplus/llgo/internal/runtime.Slice" %9
-}
-
-define void @"main.main$3"(ptr %0) {
-_llgo_0:
-  %1 = load { ptr }, ptr %0, align 8
-  %2 = extractvalue { ptr } %1, 0
-  %3 = load ptr, ptr %2, align 8
-  %4 = load ptr, ptr @_llgo_Pointer, align 8
-  %5 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, i32 0, i32 0
-  store ptr %4, ptr %6, align 8
-  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, i32 0, i32 1
-  store ptr %3, ptr %7, align 8
-  %8 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, align 8
-  %9 = call [0 x i8] @free(ptr %3)
-  ret void
-}
-
-define void @"main.main$4"(ptr %0) {
-_llgo_0:
-  %1 = load { ptr }, ptr %0, align 8
-  %2 = extractvalue { ptr } %1, 0
-  %3 = load ptr, ptr %2, align 8
-  %4 = load ptr, ptr @_llgo_Pointer, align 8
-  %5 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
-  %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, i32 0, i32 0
-  store ptr %4, ptr %6, align 8
-  %7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, i32 0, i32 1
-  store ptr %3, ptr %7, align 8
-  %8 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %5, align 8
-  %9 = call [0 x i8] @free(ptr %3)
-  ret void
-}
-
-declare void @runtime.throw(%"github.com/goplus/llgo/internal/runtime.String")
-
-declare void @syscall.init()
-
-declare void @fmt.init()
-
-declare void @"github.com/goplus/llgo/internal/runtime.init"()
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.CString"(%"github.com/goplus/llgo/internal/runtime.String")
-
-declare i32 @puts(ptr)
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64)
-
-declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.GoString"(ptr)
-
-declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
-
-declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
-
-declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.GoStringN"(ptr, i64)
-
-declare void @"github.com/goplus/llgo/internal/runtime.PrintSlice"(%"github.com/goplus/llgo/internal/runtime.Slice")
-
-declare double @sqrt(double)
-
-define void @"main.init$after"() {
-_llgo_0:
-  %0 = load ptr, ptr @_llgo_float64, align 8
-  %1 = icmp eq ptr %0, null
-  br i1 %1, label %_llgo_1, label %_llgo_2
-
-_llgo_1:                                          ; preds = %_llgo_0
-  %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 46)
-  store ptr %2, ptr @_llgo_float64, align 8
-  br label %_llgo_2
-
-_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
-  %3 = load ptr, ptr @_llgo_byte, align 8
-  %4 = icmp eq ptr %3, null
-  br i1 %4, label %_llgo_3, label %_llgo_4
-
-_llgo_3:                                          ; preds = %_llgo_2
-  %5 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 40)
-  store ptr %5, ptr @_llgo_byte, align 8
-  br label %_llgo_4
-
-_llgo_4:                                          ; preds = %_llgo_3, %_llgo_2
-  %6 = load ptr, ptr @"[]_llgo_byte", align 8
-  %7 = icmp eq ptr %6, null
-  br i1 %7, label %_llgo_5, label %_llgo_6
-
-_llgo_5:                                          ; preds = %_llgo_4
-  %8 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 40)
-  %9 = call ptr @"github.com/goplus/llgo/internal/runtime.SliceOf"(ptr %8)
-  store ptr %9, ptr @"[]_llgo_byte", align 8
-  br label %_llgo_6
-
-_llgo_6:                                          ; preds = %_llgo_5, %_llgo_4
-  %10 = load ptr, ptr @_llgo_Pointer, align 8
-  %11 = icmp eq ptr %10, null
-  br i1 %11, label %_llgo_7, label %_llgo_8
-
-_llgo_7:                                          ; preds = %_llgo_6
-  %12 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 58)
-  call void @"github.com/goplus/llgo/internal/runtime.SetDirectIface"(ptr %12)
-  store ptr %12, ptr @_llgo_Pointer, align 8
-  br label %_llgo_8
-
-_llgo_8:                                          ; preds = %_llgo_7, %_llgo_6
-  ret void
-}
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
-
-declare { i64, %"github.com/goplus/llgo/internal/runtime.iface" } @fmt.Printf(%"github.com/goplus/llgo/internal/runtime.String", %"github.com/goplus/llgo/internal/runtime.Slice")
-
-declare double @sin(double)
-
-declare double @cos(double)
-
-declare double @log(double)
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.SliceOf"(ptr)
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.CBytes"(%"github.com/goplus/llgo/internal/runtime.Slice")
-
-declare void @"github.com/goplus/llgo/internal/runtime.SetDirectIface"(ptr)
-
-declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.GoBytes"(ptr, i64)
-
-declare [0 x i8] @free(ptr)