build: separate compiler and libs

compiler/cl/_testrt/callback/out.ll

@@ -0,0 +1,56 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global i1 false, align 1
+@__llgo_argc = global i32 0, align 4
+@__llgo_argv = global ptr null, align 8
+@0 = private unnamed_addr constant [7 x i8] c"Hello\0A\00", align 1
+@1 = private unnamed_addr constant [10 x i8] c"callback\0A\00", align 1
+
+define void @main.callback(ptr %0, { ptr, ptr } %1) {
+_llgo_0:
+  %2 = extractvalue { ptr, ptr } %1, 1
+  %3 = extractvalue { ptr, ptr } %1, 0
+  call void %3(ptr %2, ptr %0)
+  ret void
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  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.callback(ptr @0, { ptr, ptr } { ptr @__llgo_stub.main.print, ptr null })
+  call void @main.callback(ptr @1, { ptr, ptr } { ptr @__llgo_stub.main.print, ptr null })
+  ret i32 0
+}
+
+define void @main.print(ptr %0) {
+_llgo_0:
+  %1 = call i32 (ptr, ...) @printf(ptr %0)
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+define linkonce void @__llgo_stub.main.print(ptr %0, ptr %1) {
+_llgo_0:
+  tail call void @main.print(ptr %1)
+  ret void
+}
+
+declare i32 @printf(ptr, ...)