move out c/cpp/py

cl/_testrt/allocstr/in.go

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

cl/_testrt/allocstr/out.ll

@@ -0,0 +1,40 @@
+; ModuleID = 'github.com/goplus/llgo/cl/_testrt/allocstr'
+source_filename = "github.com/goplus/llgo/cl/_testrt/allocstr"
+
+%"github.com/goplus/llgo/runtime/internal/runtime.String" = type { ptr, i64 }
+
+@"github.com/goplus/llgo/cl/_testrt/allocstr.init$guard" = global i1 false, align 1
+@0 = private unnamed_addr constant [12 x i8] c"Hello world\0A", align 1
+
+define %"github.com/goplus/llgo/runtime/internal/runtime.String" @"github.com/goplus/llgo/cl/_testrt/allocstr.hello"() {
+_llgo_0:
+  ret %"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @0, i64 12 }
+}
+
+define void @"github.com/goplus/llgo/cl/_testrt/allocstr.init"() {
+_llgo_0:
+  %0 = load i1, ptr @"github.com/goplus/llgo/cl/_testrt/allocstr.init$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/_testrt/allocstr.init$guard", align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @"github.com/goplus/llgo/cl/_testrt/allocstr.main"() {
+_llgo_0:
+  %0 = call %"github.com/goplus/llgo/runtime/internal/runtime.String" @"github.com/goplus/llgo/cl/_testrt/allocstr.hello"()
+  %1 = extractvalue %"github.com/goplus/llgo/runtime/internal/runtime.String" %0, 1
+  %2 = add i64 %1, 1
+  %3 = alloca i8, i64 %2, align 1
+  %4 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.CStrCopy"(ptr %3, %"github.com/goplus/llgo/runtime/internal/runtime.String" %0)
+  %5 = call i32 (ptr, ...) @printf(ptr %4)
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/runtime/internal/runtime.CStrCopy"(ptr, %"github.com/goplus/llgo/runtime/internal/runtime.String")
+
+declare i32 @printf(ptr, ...)