1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -o - %s | FileCheck %s 2 3 // A test to ensure that we generate fused calls at -O0. 4 5 @class Test0; 6 Test0 *test0(void) { 7 extern Test0 *test0_helper; 8 return test0_helper; 9 10 // CHECK: [[LD:%.*]] = load [[TEST0:%.*]]*, [[TEST0:%.*]]** @test0_helper 11 // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST0]]* [[LD]] to i8* 12 // CHECK-NEXT: [[T1:%.*]] = tail call i8* @objc_retainAutoreleaseReturnValue(i8* [[T0]]) 13 // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to [[TEST0]]* 14 // CHECK-NEXT: ret [[TEST0]]* [[T2]] 15 } 16 17 id test1(void) { 18 extern id test1_helper; 19 return test1_helper; 20 21 // CHECK: [[LD:%.*]] = load i8*, i8** @test1_helper 22 // CHECK-NEXT: [[T0:%.*]] = tail call i8* @objc_retainAutoreleaseReturnValue(i8* [[LD]]) 23 // CHECK-NEXT: ret i8* [[T0]] 24 } 25 26 void test2(void) { 27 // CHECK: [[X:%.*]] = alloca i8* 28 // CHECK-NEXT: store i8* null, i8** [[X]] 29 // CHECK-NEXT: call void @objc_destroyWeak(i8** [[X]]) 30 // CHECK-NEXT: ret void 31 __weak id x; 32 } 33 34 id test3(void) { 35 extern id test3_helper(void); 36 // CHECK: [[T0:%.*]] = call i8* @test3_helper() 37 // CHECK-NEXT: ret i8* [[T0]] 38 return test3_helper(); 39 } 40 41 @interface Test4 { id x; } @end 42 @interface Test4_sub : Test4 { id y; } @end 43 Test4 *test4(void) { 44 extern Test4_sub *test4_helper(void); 45 // CHECK: [[T0:%.*]] = call [[TEST4S:%.*]]* @test4_helper() 46 // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST4S]]* [[T0]] to [[TEST4:%.*]]* 47 // CHECK-NEXT: ret [[TEST4]]* [[T1]] 48 return test4_helper(); 49 } 50 51 // rdar://problem/9418404 52 @class Test5; 53 void test5(void) { 54 Test5 *x, *y; 55 if ((x = y)) 56 y = 0; 57 58 // CHECK-LABEL: define void @test5() 59 // CHECK: [[X:%.*]] = alloca [[TEST5:%.*]]*, 60 // CHECK-NEXT: [[Y:%.*]] = alloca [[TEST5:%.*]]*, 61 // CHECK-NEXT: store [[TEST5]]* null, [[TEST5]]** [[X]], 62 // CHECK-NEXT: store [[TEST5]]* null, [[TEST5]]** [[Y]], 63 // CHECK-NEXT: [[T0:%.*]] = load [[TEST5]]*, [[TEST5]]** [[Y]], 64 // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST5]]** [[X]] to i8** 65 // CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST5]]* [[T0]] to i8* 66 // CHECK-NEXT: call void @objc_storeStrong(i8** [[T1]], i8* [[T2]]) 67 // CHECK-NEXT: [[T3:%.*]] = icmp ne [[TEST5]]* [[T0]], null 68 // CHECK-NEXT: br i1 [[T3]], 69 } 70
