xref: /llvm-project/clang/test/CodeGenObjC/arc-unopt.m (revision 0f1c1be1968076d6f96f8a7bcc4a15cf195ecd97)
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;
6Test0 *test0(void) {
7  extern Test0 *test0_helper;
8  return test0_helper;
9
10  // CHECK:      [[LD:%.*]] = load ptr, ptr @test0_helper
11  // 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_helper
20  // 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 ptr
26  // CHECK-NEXT: store ptr null, ptr [[X]]
27  // CHECK-NEXT: call void @llvm.objc.destroyWeak(ptr [[X]])
28  // CHECK-NEXT: ret void
29  __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; } @end
40@interface Test4_sub : Test4 { id y; } @end
41Test4 *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]], null
62// CHECK-NEXT: br i1 [[T3]],
63}
64