1// RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-darwin-apple -fobjc-arc -O2 -disable-llvm-passes | FileCheck %s --check-prefixes=CHECK,CHECK-O2
2// RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-darwin-apple -fobjc-arc -O0 | FileCheck %s --check-prefixes=CHECK,CHECK-O0
3// RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-darwin-apple -O2 -disable-llvm-passes | FileCheck %s --check-prefix=CHECK-MRR
4
5// Make sure we emit clang.arc.use before calling objc_release as part of the
6// cleanup. This way we make sure the object will not be released until the
7// end of the full expression.
8
9// rdar://problem/24528966
10
11@interface C
12- (id)m0;
13+ (id)m1;
14@end
15
16C *c;
17
18@class NSString;
19extern __attribute__((visibility("default"))) NSString *GenString();
20void os_log_pack_send(void *);
21
22// CHECK-LABEL: define{{.*}} void @test_builtin_os_log1(
23// CHECK: alloca i8*, align 8
24// CHECK: %[[A_ADDR:.*]] = alloca i8*, align 8
25// CHECK: %[[OS_LOG_ARG:.*]] = alloca %{{.*}}*, align 8
26// CHECK-O2: %[[V0:.*]] = call i8* @llvm.objc.retain(
27// CHECK-O2: store i8* %[[V0]], i8** %[[A_ADDR]], align 8,
28// CHECK-O0: call void @llvm.objc.storeStrong(i8** %[[A_ADDR]], i8* %{{.*}})
29// CHECK-O2: %[[V4:.*]] = call %{{.*}}* (...) @GenString() [ "clang.arc.attachedcall"(i8* (i8*)* @llvm.objc.retainAutoreleasedReturnValue) ]
30// CHECK-O0: %[[CALL:.*]] = call %{{.*}}* (...) @GenString()
31// CHECK-O0: %[[V2:.*]] = bitcast %{{.*}}* %[[CALL]] to i8*
32// CHECK-O0: %[[V3:.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[V2]])
33// CHECK-O0: %[[V4:.*]] = bitcast i8* %[[V3]] to %{{.*}}*
34// CHECK: %[[V5:.*]] = bitcast %{{.*}}* %[[V4]] to i8*
35// CHECK: %[[V6:.*]] = call i8* @llvm.objc.retain(i8* %[[V5]])
36// CHECK: %[[V7:.*]] = bitcast i8* %[[V6]] to %{{.*}}*
37// CHECK: store %{{.*}}* %[[V7]], %{{.*}}** %[[OS_LOG_ARG]],
38// CHECK: %[[V8:.*]] = ptrtoint %{{.*}}* %[[V7]] to i64
39// CHECK: %[[V9:.*]] = load i8*, i8** %[[A_ADDR]], align 8
40// CHECK: %[[V10:.*]] = ptrtoint i8* %[[V9]] to i64
41// CHECK: call void @__os_log_helper_1_2_2_8_64_8_64(i8* %{{.*}}, i64 %[[V8]], i64 %[[V10]])
42// CHECK: %[[V11:.*]] = bitcast %{{.*}}* %[[V4]] to i8*
43// CHECK: call void @llvm.objc.release(i8* %[[V11]])
44// CHECK: call void @os_log_pack_send(i8* %{{.*}})
45// CHECK-O2: call void (...) @llvm.objc.clang.arc.use(%{{.*}}* %[[V7]])
46// CHECK-O2: %[[V13:.*]] = load %{{.*}}*, %{{.*}}** %[[OS_LOG_ARG]], align 8
47// CHECK-O2: %[[V14:.*]] = bitcast %{{.*}}* %[[V13]] to i8*
48// CHECK-O2: call void @llvm.objc.release(i8* %[[V14]])
49// CHECK-O2: %[[V15:.*]] = load i8*, i8** %[[A_ADDR]], align 8
50// CHECK-O2: call void @llvm.objc.release(i8* %[[V15]])
51// CHECK-O0: %[[V12:.*]] = bitcast %{{.*}}** %[[OS_LOG_ARG]] to i8**
52// CHECK-O0: call void @llvm.objc.storeStrong(i8** %[[V12]], i8* null)
53// CHECK-O0: call void @llvm.objc.storeStrong(i8** %[[A_ADDR]], i8* null)
54
55// CHECK-MRR-LABEL: define{{.*}} void @test_builtin_os_log1(
56// CHECK-MRR-NOT: call {{.*}} @llvm.objc
57// CHECK-MRR: ret void
58
59void test_builtin_os_log1(void *buf, id a) {
60  __builtin_os_log_format(buf, "capabilities: %@ %@", GenString(), a);
61  os_log_pack_send(buf);
62}
63
64// CHECK: define{{.*}} void @test_builtin_os_log2(
65// CHECK-NOT: @llvm.objc.retain(
66
67void test_builtin_os_log2(void *buf, id __unsafe_unretained a) {
68  __builtin_os_log_format(buf, "capabilities: %@", a);
69  os_log_pack_send(buf);
70}
71
72// CHECK-LABEL: define{{.*}} void @test_builtin_os_log3(
73// CHECK: alloca i8*, align 8
74// CHECK: %[[OS_LOG_ARG:.*]] = alloca i8*, align 8
75// CHECK-O2: %[[V3:.*]] = call %{{.*}}* (...) @GenString() [ "clang.arc.attachedcall"(i8* (i8*)* @llvm.objc.retainAutoreleasedReturnValue) ]
76// CHECK-O0: %[[CALL:.*]] = call %{{.*}}* (...) @GenString()
77// CHECK-O0: %[[V1:.*]] = bitcast %{{.*}}* %[[CALL]] to i8*
78// CHECK-O0: %[[V2:.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[V1]])
79// CHECK-O0: %[[V3:.*]] = bitcast i8* %[[V2]] to %{{.*}}*
80// CHECK: %[[V4:.*]] = bitcast %{{.*}}* %[[V3]] to i8*
81// CHECK: %[[V5:.*]] = call i8* @llvm.objc.retain(i8* %[[V4]])
82// CHECK: store i8* %[[V5]], i8** %[[OS_LOG_ARG]], align 8
83// CHECK: %[[V6:.*]] = ptrtoint i8* %[[V5]] to i64
84// CHECK: call void @__os_log_helper_1_2_1_8_64(i8* %{{.*}}, i64 %[[V6]])
85// CHECK: %[[V7:.*]] = bitcast %{{.*}}* %[[V3]] to i8*
86// CHECK: call void @llvm.objc.release(i8* %[[V7]])
87// CHECK: call void @os_log_pack_send(i8* %{{.*}})
88// CHECK-O2: call void (...) @llvm.objc.clang.arc.use(i8* %[[V5]])
89// CHECK-O2: %[[V9:.*]] = load i8*, i8** %[[OS_LOG_ARG]], align 8
90// CHECK-O2: call void @llvm.objc.release(i8* %[[V9]])
91// CHECK-O0: call void @llvm.objc.storeStrong(i8** %[[OS_LOG_ARG]], i8* null)
92
93void test_builtin_os_log3(void *buf) {
94  __builtin_os_log_format(buf, "capabilities: %@", (id)GenString());
95  os_log_pack_send(buf);
96}
97
98// CHECK-LABEL: define{{.*}} void @test_builtin_os_log4(
99// CHECK: alloca i8*, align 8
100// CHECK: %[[OS_LOG_ARG:.*]] = alloca i8*, align 8
101// CHECK: %[[OS_LOG_ARG2:.*]] = alloca i8*, align 8
102// CHECK-O2: %[[V4:.*]] = call {{.*}} @objc_msgSend{{.*}} [ "clang.arc.attachedcall"(i8* (i8*)* @llvm.objc.retainAutoreleasedReturnValue) ]
103// CHECK-O0: %[[CALL:.*]] = call {{.*}} @objc_msgSend
104// CHECK-O0: %[[V4:.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[CALL]])
105// CHECK: %[[V5:.*]] = call i8* @llvm.objc.retain(i8* %[[V4]])
106// CHECK: store i8* %[[V5]], i8** %[[OS_LOG_ARG]], align 8
107// CHECK: %[[V6:.*]] = ptrtoint i8* %[[V5]] to i64
108// CHECK-O2: %[[V10:.*]] = call {{.*}} @objc_msgSend{{.*}} [ "clang.arc.attachedcall"(i8* (i8*)* @llvm.objc.retainAutoreleasedReturnValue) ]
109// CHECK-O0: %[[CALL1:.*]] = call {{.*}} @objc_msgSend
110// CHECK-O0: %[[V10:.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[CALL1]])
111// CHECK: %[[V11:.*]] = call i8* @llvm.objc.retain(i8* %[[V10]])
112// CHECK: store i8* %[[V11]], i8** %[[OS_LOG_ARG2]], align 8
113// CHECK: %[[V12:.*]] = ptrtoint i8* %[[V11]] to i64
114// CHECK: call void @__os_log_helper_1_2_2_8_64_8_64(i8* %{{.*}}, i64 %[[V6]], i64 %[[V12]])
115// CHECK: call void @llvm.objc.release(i8* %[[V10]])
116// CHECK: call void @llvm.objc.release(i8* %[[V4]])
117// CHECK: call void @os_log_pack_send(i8* %{{.*}})
118// CHECK-O2: call void (...) @llvm.objc.clang.arc.use(i8* %[[V11]])
119// CHECK-O2: %[[V14:.*]] = load i8*, i8** %[[OS_LOG_ARG2]], align 8
120// CHECK-O2: call void @llvm.objc.release(i8* %[[V14]])
121// CHECK-O2: call void (...) @llvm.objc.clang.arc.use(i8* %[[V5]])
122// CHECK-O2: %[[V15:.*]] = load i8*, i8** %[[OS_LOG_ARG]], align 8
123// CHECK-O2: call void @llvm.objc.release(i8* %[[V15]])
124
125void test_builtin_os_log4(void *buf) {
126  __builtin_os_log_format(buf, "capabilities: %@ %@", [c m0], [C m1]);
127  os_log_pack_send(buf);
128}
129
130// FIXME: Lifetime of GenString's return should be extended in this case too.
131// CHECK-LABEL: define{{.*}} void @test_builtin_os_log5(
132// CHECK: call void @os_log_pack_send(
133// CHECK-NOT: call void @llvm.objc.release(
134
135void test_builtin_os_log5(void *buf) {
136  __builtin_os_log_format(buf, "capabilities: %@", (0, GenString()));
137  os_log_pack_send(buf);
138}
139