test/CodeGen/2005-12-04-AttributeUsed.c - llvm-project/clang - Git at Google

 // RUN: %clang_cc1 -no-opaque-pointers %s -triple x86_64-apple-darwin -emit-llvm -o - | FileCheck %s

 // CHECK: @llvm.used = appending global [2 x i8*] [i8* bitcast (void ()* @foo to i8*), i8* bitcast (i32* @X to i8*)], section "llvm.metadata"
 int X __attribute__((used));
 int Y;

 __attribute__((used)) void foo(void) {}
	// RUN: %clang_cc1 -no-opaque-pointers %s -triple x86_64-apple-darwin -emit-llvm -o - \| FileCheck %s

	// CHECK: @llvm.used = appending global [2 x i8] [i8 bitcast (void ()* @foo to i8), i8 bitcast (i32* @X to i8*)], section "llvm.metadata"
	int X __attribute__((used));
	int Y;

	__attribute__((used)) void foo(void) {}