1*67e74705SXin Li// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o - %s | FileCheck %s 2*67e74705SXin Li 3*67e74705SXin Livoid test0(void) { 4*67e74705SXin Li extern id test0_helper(void); 5*67e74705SXin Li __attribute__((objc_precise_lifetime)) id x = test0_helper(); 6*67e74705SXin Li test0_helper(); 7*67e74705SXin Li // CHECK-LABEL: define void @test0() 8*67e74705SXin Li // CHECK: [[T0:%.*]] = call i8* @test0_helper() 9*67e74705SXin Li // CHECK-NEXT: store i8* [[T0]], i8** [[X:%.*]], align 8 10*67e74705SXin Li // CHECK-NEXT: call i8* @test0_helper() 11*67e74705SXin Li // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]], align 8 12*67e74705SXin Li // CHECK-NEXT: call void asm sideeffect "", "r"(i8* [[T0]]) [[NUW:#[0-9]+]] 13*67e74705SXin Li // CHECK-NEXT: ret void 14*67e74705SXin Li} 15*67e74705SXin Li 16*67e74705SXin Li// CHECK: attributes [[NUW]] = { nounwind } 17