| // 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 ptr, ptr @test0_helper |
| // CHECK-NEXT: [[T1:%.*]] = tail call ptr @llvm.objc.retainAutoreleaseReturnValue(ptr [[LD]]) |
| // CHECK-NEXT: ret ptr [[T1]] |
| } |
| |
| id test1(void) { |
| extern id test1_helper; |
| return test1_helper; |
| |
| // CHECK: [[LD:%.*]] = load ptr, ptr @test1_helper |
| // CHECK-NEXT: [[T0:%.*]] = tail call ptr @llvm.objc.retainAutoreleaseReturnValue(ptr [[LD]]) |
| // CHECK-NEXT: ret ptr [[T0]] |
| } |
| |
| void test2(void) { |
| // CHECK: [[X:%.*]] = alloca ptr |
| // CHECK-NEXT: store ptr null, ptr [[X]] |
| // CHECK-NEXT: call void @llvm.objc.destroyWeak(ptr [[X]]) |
| // CHECK-NEXT: ret void |
| __weak id x; |
| } |
| |
| id test3(void) { |
| extern id test3_helper(void); |
| // CHECK: [[T0:%.*]] = call ptr @test3_helper() |
| // CHECK-NEXT: ret ptr [[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 ptr @test4_helper() |
| // CHECK-NEXT: ret ptr [[T0]] |
| 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 ptr, |
| // CHECK-NEXT: [[Y:%.*]] = alloca ptr, |
| // CHECK-NEXT: store ptr null, ptr [[X]], |
| // CHECK-NEXT: store ptr null, ptr [[Y]], |
| // CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[Y]], |
| // CHECK-NEXT: call void @llvm.objc.storeStrong(ptr [[X]], ptr [[T0]]) |
| // CHECK-NEXT: [[T3:%.*]] = icmp ne ptr [[T0]], null |
| // CHECK-NEXT: br i1 [[T3]], |
| } |