diff --git a/cl/_testlibc/once/out.ll b/cl/_testlibc/once/out.ll
index 05ffcbc4..1c8a0e79 100644
--- a/cl/_testlibc/once/out.ll
+++ b/cl/_testlibc/once/out.ll
@@ -1,55 +1 @@
-; ModuleID = 'main'
-source_filename = "main"
-
-%"github.com/goplus/llgo/c/pthread/sync.Once" = type { i64, [8 x i8] }
-
-@"main.init$guard" = global i1 false, align 1
-@main.once = global %"github.com/goplus/llgo/c/pthread/sync.Once" zeroinitializer, align 8
-@"github.com/goplus/llgo/c/pthread/sync.OnceInit" = external global %"github.com/goplus/llgo/c/pthread/sync.Once", align 8
-@__llgo_argc = global i32 0, align 4
-@__llgo_argv = global ptr null, align 8
-@0 = private unnamed_addr constant [9 x i8] c"Do once\0A\00", align 1
-
-define void @main.f() {
-_llgo_0:
-  %0 = call i32 @pthread_once(ptr @main.once, ptr @"main.f$1")
-  ret void
-}
-
-define void @main.init() {
-_llgo_0:
-  %0 = load i1, ptr @"main.init$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
-  %1 = load %"github.com/goplus/llgo/c/pthread/sync.Once", ptr @"github.com/goplus/llgo/c/pthread/sync.OnceInit", align 4
-  store %"github.com/goplus/llgo/c/pthread/sync.Once" %1, ptr @main.once, align 4
-  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()
-  call void @main.f()
-  call void @main.f()
-  ret i32 0
-}
-
-declare i32 @pthread_once(ptr, ptr)
-
-define void @"main.f$1"() {
-_llgo_0:
-  %0 = call i32 (ptr, ...) @printf(ptr @0)
-  ret void
-}
-
-declare void @"github.com/goplus/llgo/internal/runtime.init"()
-
-declare i32 @printf(ptr, ...)
+;
\ No newline at end of file