1// RUN: %clang_cc1 -emit-llvm -fblocks -fobjc-arc -debug-info-kind=standalone -dwarf-version=4 -disable-llvm-passes -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
2
3// Legend: EXP = Return expression, RET = ret instruction
4
5// CHECK: define {{.*}}testNoSideEffect
6// CHECK: call void @llvm.objc.storeStrong{{.*}}
7// CHECK: call void @llvm.objc.storeStrong{{.*}} !dbg ![[RET1:[0-9]+]]
8// CHECK: ret {{.*}} !dbg ![[RET1]]
9
10// CHECK: define {{.*}}testNoCleanup
11// CHECK: ret {{.*}} !dbg ![[RET2:[0-9]+]]
12
13// CHECK: define {{.*}}testSideEffect
14// CHECK: @objc_msgSend{{.*}} !dbg ![[MSG3:[0-9]+]]
15// CHECK: ret {{.*}} !dbg ![[RET3:[0-9]+]]
16
17// CHECK: define {{.*}}testMultiline
18// CHECK: @objc_msgSend{{.*}} !dbg ![[MSG4:[0-9]+]]
19// CHECK: load{{.*}} !dbg ![[EXP4:[0-9]+]]
20// CHECK: ret {{.*}} !dbg ![[RET4:[0-9]+]]
21
22// CHECK: define {{.*}}testVoid
23// CHECK: call void @llvm.objc.storeStrong{{.*}}
24// CHECK: call void @llvm.objc.storeStrong{{.*}} !dbg ![[RET5:[0-9]+]]
25// CHECK: ret {{.*}} !dbg ![[RET5]]
26
27// CHECK: define {{.*}}testVoidNoReturn
28// CHECK: @objc_msgSend{{.*}} !dbg ![[MSG6:[0-9]+]]
29// CHECK: ret {{.*}} !dbg ![[RET6:[0-9]+]]
30
31// CHECK: define {{.*}}testNoCleanupSideEffect
32// CHECK: @objc_msgSend{{.*}} !dbg ![[MSG7:[0-9]+]]
33// CHECK: ret {{.*}} !dbg ![[RET7:[0-9]+]]
34
35// CHECK: define {{.*}}testCleanupVoid
36// CHECK: icmp ne {{.*}}!dbg ![[SKIP1:[0-9]+]]
37// CHECK: store i32 0, i32* {{.*}}, !dbg ![[RET8:[0-9]+]]
38// CHECK: @llvm.objc.storeStrong{{.*}}, !dbg ![[RET8]]
39// CHECK: ret {{.*}} !dbg ![[RET8]]
40
41typedef signed char BOOL;
42
43@interface NSObject
44+ (id)alloc;
45- (id)init;
46- (id)retain;
47@end
48
49@class NSString;
50
51@interface AppDelegate : NSObject
52
53@end
54
55@implementation AppDelegate : NSObject
56
57// CHECK: ![[TESTNOSIDEEFFECT:.*]] = distinct !DISubprogram(name: "-[AppDelegate testNoSideEffect:]"
58// CHECK-SAME:                                              line: [[@LINE+2]]
59// CHECK-SAME:                                              DISPFlagLocalToUnit | DISPFlagDefinition
60- (int)testNoSideEffect:(NSString *)foo {
61  int x = 1;
62  return 1; // Return expression
63  // CHECK: ![[RET1]] = !DILocation(line: [[@LINE+1]], scope: ![[TESTNOSIDEEFFECT]])
64}           // Cleanup + Ret
65
66- (int)testNoCleanup {
67  // CHECK: ![[RET2]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
68  return 1;
69}
70
71- (int)testSideEffect:(NSString *)foo {
72  // CHECK: ![[MSG3]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
73  return [self testNoSideEffect :foo];
74  // CHECK: ![[RET3]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
75}
76
77- (int)testMultiline:(NSString *)foo {
78  // CHECK: ![[MSG4]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
79  int r = [self testSideEffect :foo];
80  // CHECK: ![[EXP4]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
81  return r;
82  // CHECK: ![[RET4]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
83}
84
85- (void)testVoid:(NSString *)foo {
86  return;
87  // CHECK: ![[RET5]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
88}
89
90- (void)testVoidNoReturn:(NSString *)foo {
91  // CHECK: ![[MSG6]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
92  [self testVoid :foo];
93  // CHECK: ![[RET6]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
94}
95
96- (int)testNoCleanupSideEffect {
97  // CHECK: ![[MSG7]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
98  [self testVoid :@"foo"];
99  // CHECK: ![[RET7]] = !DILocation(line: [[@LINE+1]], scope: !{{.*}})
100  return 1;
101}
102
103- (void)testCleanupVoid:(BOOL)skip withDelegate: (AppDelegate *) delegate {
104  static BOOL skip_all;
105  // CHECK: ![[SKIP1]] = !DILocation(line: [[@LINE+1]], scope:
106  if (!skip_all) {
107    if (!skip) {
108      return;
109    }
110    NSString *s = @"bar";
111    if (!skip) {
112      [delegate testVoid :s];
113    }
114  }
115  // CHECK: ![[RET8]] = !DILocation(line: [[@LINE+1]], scope:
116}
117
118
119@end
120
121
122int main(int argc, const char** argv) {
123  AppDelegate *o = [[AppDelegate alloc] init];
124  return [o testMultiline :@"foo"];
125}
126