| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -o - %s | FileCheck %s |
| |
| // A test to ensure that we generate fused calls at -O0. |
| |
| @class Test0; |
| Test0 *test0(void) { |
| extern Test0 *test0_helper; |
| return test0_helper; |
| |
| // CHECK: [[LD:%.*]] = load [[TEST0:%.*]]*, [[TEST0:%.*]]** @test0_helper |
| // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST0]]* [[LD]] to i8* |
| // CHECK-NEXT: [[T1:%.*]] = tail call i8* @llvm.objc.retainAutoreleaseReturnValue(i8* [[T0]]) |
| // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to [[TEST0]]* |
| // CHECK-NEXT: ret [[TEST0]]* [[T2]] |
| } |
| |
| id test1(void) { |
| extern id test1_helper; |
| return test1_helper; |
| |
| // CHECK: [[LD:%.*]] = load i8*, i8** @test1_helper |
| // CHECK-NEXT: [[T0:%.*]] = tail call i8* @llvm.objc.retainAutoreleaseReturnValue(i8* [[LD]]) |
| // CHECK-NEXT: ret i8* [[T0]] |
| } |
| |
| void test2(void) { |
| // CHECK: [[X:%.*]] = alloca i8* |
| // CHECK-NEXT: store i8* null, i8** [[X]] |
| // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[X]]) |
| // CHECK-NEXT: ret void |
| __weak id x; |
| } |
| |
| id test3(void) { |
| extern id test3_helper(void); |
| // CHECK: [[T0:%.*]] = call i8* @test3_helper() |
| // CHECK-NEXT: ret i8* [[T0]] |
| return test3_helper(); |
| } |
| |
| @interface Test4 { id x; } @end |
| @interface Test4_sub : Test4 { id y; } @end |
| Test4 *test4(void) { |
| extern Test4_sub *test4_helper(void); |
| // CHECK: [[T0:%.*]] = call [[TEST4S:%.*]]* @test4_helper() |
| // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST4S]]* [[T0]] to [[TEST4:%.*]]* |
| // CHECK-NEXT: ret [[TEST4]]* [[T1]] |
| return test4_helper(); |
| } |
| |
| // rdar://problem/9418404 |
| @class Test5; |
| void test5(void) { |
| Test5 *x, *y; |
| if ((x = y)) |
| y = 0; |
| |
| // CHECK-LABEL: define void @test5() |
| // CHECK: [[X:%.*]] = alloca [[TEST5:%.*]]*, |
| // CHECK-NEXT: [[Y:%.*]] = alloca [[TEST5:%.*]]*, |
| // CHECK-NEXT: store [[TEST5]]* null, [[TEST5]]** [[X]], |
| // CHECK-NEXT: store [[TEST5]]* null, [[TEST5]]** [[Y]], |
| // CHECK-NEXT: [[T0:%.*]] = load [[TEST5]]*, [[TEST5]]** [[Y]], |
| // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST5]]** [[X]] to i8** |
| // CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST5]]* [[T0]] to i8* |
| // CHECK-NEXT: call void @llvm.objc.storeStrong(i8** [[T1]], i8* [[T2]]) |
| // CHECK-NEXT: [[T3:%.*]] = icmp ne [[TEST5]]* [[T0]], null |
| // CHECK-NEXT: br i1 [[T3]], |
| } |