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1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -o - %s | FileCheck %s2 3// A test to ensure that we generate fused calls at -O0.4 5@class Test0;6Test0 *test0(void) {7 extern Test0 *test0_helper;8 return test0_helper;9 10 // CHECK: [[LD:%.*]] = load ptr, ptr @test0_helper11 // CHECK-NEXT: [[T1:%.*]] = tail call ptr @llvm.objc.retainAutoreleaseReturnValue(ptr [[LD]])12 // CHECK-NEXT: ret ptr [[T1]]13}14 15id test1(void) {16 extern id test1_helper;17 return test1_helper;18 19 // CHECK: [[LD:%.*]] = load ptr, ptr @test1_helper20 // CHECK-NEXT: [[T0:%.*]] = tail call ptr @llvm.objc.retainAutoreleaseReturnValue(ptr [[LD]])21 // CHECK-NEXT: ret ptr [[T0]]22}23 24void test2(void) {25 // CHECK: [[X:%.*]] = alloca ptr26 // CHECK-NEXT: store ptr null, ptr [[X]]27 // CHECK-NEXT: call void @llvm.objc.destroyWeak(ptr [[X]])28 // CHECK-NEXT: ret void29 __weak id x;30}31 32id test3(void) {33 extern id test3_helper(void);34 // CHECK: [[T0:%.*]] = call ptr @test3_helper()35 // CHECK-NEXT: ret ptr [[T0]]36 return test3_helper();37}38 39@interface Test4 { id x; } @end40@interface Test4_sub : Test4 { id y; } @end41Test4 *test4(void) {42 extern Test4_sub *test4_helper(void);43 // CHECK: [[T0:%.*]] = call ptr @test4_helper()44 // CHECK-NEXT: ret ptr [[T0]]45 return test4_helper();46}47 48@class Test5;49void test5(void) {50 Test5 *x, *y;51 if ((x = y))52 y = 0;53 54// CHECK-LABEL: define{{.*}} void @test5()55// CHECK: [[X:%.*]] = alloca ptr,56// CHECK-NEXT: [[Y:%.*]] = alloca ptr,57// CHECK-NEXT: store ptr null, ptr [[X]],58// CHECK-NEXT: store ptr null, ptr [[Y]],59// CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[Y]],60// CHECK-NEXT: call void @llvm.objc.storeStrong(ptr [[X]], ptr [[T0]])61// CHECK-NEXT: [[T3:%.*]] = icmp ne ptr [[T0]], null62// CHECK-NEXT: br i1 [[T3]],63}64