move out c/cpp/py

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 +1,28 @@
+; ModuleID = 'github.com/goplus/llgo/cl/_testrt/fprintf'
+source_filename = "github.com/goplus/llgo/cl/_testrt/fprintf"
+
+@"github.com/goplus/llgo/cl/_testrt/fprintf.init$guard" = global i1 false, align 1
+@__stderrp = external global ptr, align 8
+@0 = private unnamed_addr constant [10 x i8] c"Hello %d\0A\00", align 1
+
+define void @"github.com/goplus/llgo/cl/_testrt/fprintf.init"() {
+_llgo_0:
+  %0 = load i1, ptr @"github.com/goplus/llgo/cl/_testrt/fprintf.init$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/fprintf.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/fprintf.main"() {
+_llgo_0:
+  %0 = load ptr, ptr @__stderrp, align 8
+  call void (ptr, ptr, ...) @fprintf(ptr %0, ptr @0, i64 100)
+  ret void
+}
+
+declare void @fprintf(ptr, ptr, ...)