move out c/cpp/py

cl/_testrt/callback/in.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"github.com/goplus/lib/c"
+)
+
+func callback(msg *c.Char, f func(*c.Char)) {
+	f(msg)
+}
+
+func print(msg *c.Char) {
+	c.Printf(msg)
+}
+
+func main() {
+	callback(c.Str("Hello\n"), print)
+	callback(c.Str("callback\n"), print)
+}

cl/_testrt/callback/out.ll

@@ -0,0 +1,48 @@
+; ModuleID = 'github.com/goplus/llgo/cl/_testrt/callback'
+source_filename = "github.com/goplus/llgo/cl/_testrt/callback"
+
+@"github.com/goplus/llgo/cl/_testrt/callback.init$guard" = global i1 false, align 1
+@0 = private unnamed_addr constant [7 x i8] c"Hello\0A\00", align 1
+@1 = private unnamed_addr constant [10 x i8] c"callback\0A\00", align 1
+
+define void @"github.com/goplus/llgo/cl/_testrt/callback.callback"(ptr %0, { ptr, ptr } %1) {
+_llgo_0:
+  %2 = extractvalue { ptr, ptr } %1, 1
+  %3 = extractvalue { ptr, ptr } %1, 0
+  call void %3(ptr %2, ptr %0)
+  ret void
+}
+
+define void @"github.com/goplus/llgo/cl/_testrt/callback.init"() {
+_llgo_0:
+  %0 = load i1, ptr @"github.com/goplus/llgo/cl/_testrt/callback.init$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/callback.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/callback.main"() {
+_llgo_0:
+  call void @"github.com/goplus/llgo/cl/_testrt/callback.callback"(ptr @0, { ptr, ptr } { ptr @"__llgo_stub.github.com/goplus/llgo/cl/_testrt/callback.print", ptr null })
+  call void @"github.com/goplus/llgo/cl/_testrt/callback.callback"(ptr @1, { ptr, ptr } { ptr @"__llgo_stub.github.com/goplus/llgo/cl/_testrt/callback.print", ptr null })
+  ret void
+}
+
+define void @"github.com/goplus/llgo/cl/_testrt/callback.print"(ptr %0) {
+_llgo_0:
+  %1 = call i32 (ptr, ...) @printf(ptr %0)
+  ret void
+}
+
+define linkonce void @"__llgo_stub.github.com/goplus/llgo/cl/_testrt/callback.print"(ptr %0, ptr %1) {
+_llgo_0:
+  tail call void @"github.com/goplus/llgo/cl/_testrt/callback.print"(ptr %1)
+  ret void
+}
+
+declare i32 @printf(ptr, ...)