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comparison clang/test/CodeGenObjC/arc-rv-attr.m @ 221:79ff65ed7e25

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LLVM12 Original
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 15 Jun 2021 19:15:29 +0900
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children c4bab56944e8
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220:42394fc6a535 221:79ff65ed7e25
1 // RUN: %clang_cc1 -triple arm64-apple-ios9 -fobjc-runtime=ios-9.0 -fobjc-arc -O -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK
2
3 @class A;
4
5 A *makeA(void);
6
7 void test_assign() {
8 __unsafe_unretained id x;
9 x = makeA();
10 }
11 // CHECK-LABEL: define{{.*}} void @test_assign()
12 // CHECK: [[X:%.*]] = alloca i8*
13 // CHECK: [[T0:%.*]] = call [[A:.*]]* @makeA() [ "clang.arc.attachedcall"(i64 1) ]
14 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
15 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
16 // CHECK-NEXT: store i8* [[T1]], i8** [[X]]
17 // CHECK-NEXT: bitcast
18 // CHECK-NEXT: lifetime.end
19 // CHECK-NEXT: ret void
20
21 void test_assign_assign() {
22 __unsafe_unretained id x, y;
23 x = y = makeA();
24 }
25 // CHECK-LABEL: define{{.*}} void @test_assign_assign()
26 // CHECK: [[X:%.*]] = alloca i8*
27 // CHECK: [[Y:%.*]] = alloca i8*
28 // CHECK: [[T0:%.*]] = call [[A]]* @makeA() [ "clang.arc.attachedcall"(i64 1) ]
29 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
30 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
31 // CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
32 // CHECK-NEXT: store i8* [[T1]], i8** [[X]]
33 // CHECK-NEXT: bitcast
34 // CHECK-NEXT: lifetime.end
35 // CHECK-NEXT: bitcast
36 // CHECK-NEXT: lifetime.end
37 // CHECK-NEXT: ret void
38
39 void test_strong_assign_assign() {
40 __strong id x;
41 __unsafe_unretained id y;
42 x = y = makeA();
43 }
44 // CHECK-LABEL: define{{.*}} void @test_strong_assign_assign()
45 // CHECK: [[X:%.*]] = alloca i8*
46 // CHECK: [[Y:%.*]] = alloca i8*
47 // CHECK: [[T0:%.*]] = call [[A]]* @makeA() [ "clang.arc.attachedcall"(i64 0) ]
48 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
49 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
50 // CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
51 // CHECK-NEXT: [[OLD:%.*]] = load i8*, i8** [[X]]
52 // CHECK-NEXT: store i8* [[T1]], i8** [[X]]
53 // CHECK-NEXT: call void @llvm.objc.release(i8* [[OLD]]
54 // CHECK-NEXT: bitcast
55 // CHECK-NEXT: lifetime.end
56 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
57 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
58 // CHECK-NEXT: bitcast
59 // CHECK-NEXT: lifetime.end
60 // CHECK-NEXT: ret void
61
62 void test_assign_strong_assign() {
63 __unsafe_unretained id x;
64 __strong id y;
65 x = y = makeA();
66 }
67 // CHECK-LABEL: define{{.*}} void @test_assign_strong_assign()
68 // CHECK: [[X:%.*]] = alloca i8*
69 // CHECK: [[Y:%.*]] = alloca i8*
70 // CHECK: [[T0:%.*]] = call [[A]]* @makeA() [ "clang.arc.attachedcall"(i64 0) ]
71 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
72 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
73 // CHECK-NEXT: [[OLD:%.*]] = load i8*, i8** [[Y]]
74 // CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
75 // CHECK-NEXT: call void @llvm.objc.release(i8* [[OLD]]
76 // CHECK-NEXT: store i8* [[T1]], i8** [[X]]
77 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
78 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
79 // CHECK-NEXT: bitcast
80 // CHECK-NEXT: lifetime.end
81 // CHECK-NEXT: bitcast
82 // CHECK-NEXT: lifetime.end
83 // CHECK-NEXT: ret void
84
85 void test_init() {
86 __unsafe_unretained id x = makeA();
87 }
88 // CHECK-LABEL: define{{.*}} void @test_init()
89 // CHECK: [[X:%.*]] = alloca i8*
90 // CHECK: [[T0:%.*]] = call [[A]]* @makeA() [ "clang.arc.attachedcall"(i64 1) ]
91 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
92 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
93 // CHECK-NEXT: store i8* [[T1]], i8** [[X]]
94 // CHECK-NEXT: bitcast
95 // CHECK-NEXT: lifetime.end
96 // CHECK-NEXT: ret void
97
98 void test_init_assignment() {
99 __unsafe_unretained id x;
100 __unsafe_unretained id y = x = makeA();
101 }
102 // CHECK-LABEL: define{{.*}} void @test_init_assignment()
103 // CHECK: [[X:%.*]] = alloca i8*
104 // CHECK: [[Y:%.*]] = alloca i8*
105 // CHECK: [[T0:%.*]] = call [[A]]* @makeA() [ "clang.arc.attachedcall"(i64 1) ]
106 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
107 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
108 // CHECK-NEXT: store i8* [[T1]], i8** [[X]]
109 // CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
110 // CHECK-NEXT: bitcast
111 // CHECK-NEXT: lifetime.end
112 // CHECK-NEXT: bitcast
113 // CHECK-NEXT: lifetime.end
114 // CHECK-NEXT: ret void
115
116 void test_strong_init_assignment() {
117 __unsafe_unretained id x;
118 __strong id y = x = makeA();
119 }
120 // CHECK-LABEL: define{{.*}} void @test_strong_init_assignment()
121 // CHECK: [[X:%.*]] = alloca i8*
122 // CHECK: [[Y:%.*]] = alloca i8*
123 // CHECK: [[T0:%.*]] = call [[A]]* @makeA() [ "clang.arc.attachedcall"(i64 0) ]
124 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
125 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
126 // CHECK-NEXT: store i8* [[T1]], i8** [[X]]
127 // CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
128 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
129 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
130 // CHECK-NEXT: bitcast
131 // CHECK-NEXT: lifetime.end
132 // CHECK-NEXT: bitcast
133 // CHECK-NEXT: lifetime.end
134 // CHECK-NEXT: ret void
135
136 void test_init_strong_assignment() {
137 __strong id x;
138 __unsafe_unretained id y = x = makeA();
139 }
140 // CHECK-LABEL: define{{.*}} void @test_init_strong_assignment()
141 // CHECK: [[X:%.*]] = alloca i8*
142 // CHECK: [[Y:%.*]] = alloca i8*
143 // CHECK: [[T0:%.*]] = call [[A]]* @makeA() [ "clang.arc.attachedcall"(i64 0) ]
144 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
145 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
146 // CHECK-NEXT: [[OLD:%.*]] = load i8*, i8** [[X]]
147 // CHECK-NEXT: store i8* [[T1]], i8** [[X]]
148 // CHECK-NEXT: call void @llvm.objc.release(i8* [[OLD]])
149 // CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
150 // CHECK-NEXT: bitcast
151 // CHECK-NEXT: lifetime.end
152 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
153 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
154 // CHECK-NEXT: bitcast
155 // CHECK-NEXT: lifetime.end
156 // CHECK-NEXT: ret void
157
158 void test_ignored() {
159 makeA();
160 }
161 // CHECK-LABEL: define{{.*}} void @test_ignored()
162 // CHECK: [[T0:%.*]] = call [[A]]* @makeA() [ "clang.arc.attachedcall"(i64 1) ]
163 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
164 // CHECK-NEXT: ret void
165
166 void test_cast_to_void() {
167 (void) makeA();
168 }
169 // CHECK-LABEL: define{{.*}} void @test_cast_to_void()
170 // CHECK: [[T0:%.*]] = call [[A]]* @makeA() [ "clang.arc.attachedcall"(i64 1) ]
171 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]])
172 // CHECK-NEXT: ret void
173
174 // This is always at the end of the module.
175
176 // CHECK-OPTIMIZED: !llvm.module.flags = !{!0,
177 // CHECK-OPTIMIZED: !0 = !{i32 1, !"clang.arc.retainAutoreleasedReturnValueMarker", !"mov{{.*}}marker for objc_retainAutoreleaseReturnValue"}