1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=armv7-apple-ios -std=c11 | FileCheck %s
// There isn't really anything special about iOS; it just happens to
// only deploy on processors with native atomics support, so it's a good
// way to test those code-paths.
// This work was done in pursuit of <rdar://13338582>.
// CHECK-LABEL: define arm_aapcscc void @testFloat(float*
void testFloat(_Atomic(float) *fp) {
// CHECK: [[FP:%.*]] = alloca float*
// CHECK-NEXT: [[X:%.*]] = alloca float
// CHECK-NEXT: [[F:%.*]] = alloca float
// CHECK-NEXT: store float* {{%.*}}, float** [[FP]]
// CHECK-NEXT: [[T0:%.*]] = load float** [[FP]]
// CHECK-NEXT: store float 1.000000e+00, float* [[T0]], align 4
__c11_atomic_init(fp, 1.0f);
// CHECK-NEXT: store float 2.000000e+00, float* [[X]], align 4
_Atomic(float) x = 2.0f;
// CHECK-NEXT: [[T0:%.*]] = load float** [[FP]]
// CHECK-NEXT: [[T1:%.*]] = bitcast float* [[T0]] to i32*
// CHECK-NEXT: [[T2:%.*]] = load atomic i32* [[T1]] seq_cst, align 4
// CHECK-NEXT: [[T3:%.*]] = bitcast i32 [[T2]] to float
// CHECK-NEXT: store float [[T3]], float* [[F]]
float f = *fp;
// CHECK-NEXT: [[T0:%.*]] = load float* [[F]], align 4
// CHECK-NEXT: [[T1:%.*]] = load float** [[FP]], align 4
// CHECK-NEXT: [[T2:%.*]] = bitcast float [[T0]] to i32
// CHECK-NEXT: [[T3:%.*]] = bitcast float* [[T1]] to i32*
// CHECK-NEXT: store atomic i32 [[T2]], i32* [[T3]] seq_cst, align 4
*fp = f;
// CHECK-NEXT: ret void
}
// CHECK: define arm_aapcscc void @testComplexFloat([[CF:{ float, float }]]*
void testComplexFloat(_Atomic(_Complex float) *fp) {
// CHECK: [[FP:%.*]] = alloca [[CF]]*, align 4
// CHECK-NEXT: [[X:%.*]] = alloca [[CF]], align 8
// CHECK-NEXT: [[F:%.*]] = alloca [[CF]], align 4
// CHECK-NEXT: [[TMP0:%.*]] = alloca [[CF]], align 8
// CHECK-NEXT: [[TMP1:%.*]] = alloca [[CF]], align 8
// CHECK-NEXT: store [[CF]]*
// CHECK-NEXT: [[P:%.*]] = load [[CF]]** [[FP]]
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[P]], i32 0, i32 0
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[CF]]* [[P]], i32 0, i32 1
// CHECK-NEXT: store float 1.000000e+00, float* [[T0]]
// CHECK-NEXT: store float 0.000000e+00, float* [[T1]]
__c11_atomic_init(fp, 1.0f);
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[X]], i32 0, i32 0
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[CF]]* [[X]], i32 0, i32 1
// CHECK-NEXT: store float 2.000000e+00, float* [[T0]]
// CHECK-NEXT: store float 0.000000e+00, float* [[T1]]
_Atomic(_Complex float) x = 2.0f;
// CHECK-NEXT: [[T0:%.*]] = load [[CF]]** [[FP]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[CF]]* [[T0]] to i64*
// CHECK-NEXT: [[T2:%.*]] = load atomic i64* [[T1]] seq_cst, align 8
// CHECK-NEXT: [[T3:%.*]] = bitcast [[CF]]* [[TMP0]] to i64*
// CHECK-NEXT: store i64 [[T2]], i64* [[T3]], align 8
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[TMP0]], i32 0, i32 0
// CHECK-NEXT: [[R:%.*]] = load float* [[T0]]
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[TMP0]], i32 0, i32 1
// CHECK-NEXT: [[I:%.*]] = load float* [[T0]]
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[F]], i32 0, i32 0
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[CF]]* [[F]], i32 0, i32 1
// CHECK-NEXT: store float [[R]], float* [[T0]]
// CHECK-NEXT: store float [[I]], float* [[T1]]
_Complex float f = *fp;
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[F]], i32 0, i32 0
// CHECK-NEXT: [[R:%.*]] = load float* [[T0]]
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[F]], i32 0, i32 1
// CHECK-NEXT: [[I:%.*]] = load float* [[T0]]
// CHECK-NEXT: [[DEST:%.*]] = load [[CF]]** [[FP]], align 4
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[TMP1]], i32 0, i32 0
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[CF]]* [[TMP1]], i32 0, i32 1
// CHECK-NEXT: store float [[R]], float* [[T0]]
// CHECK-NEXT: store float [[I]], float* [[T1]]
// CHECK-NEXT: [[T0:%.*]] = bitcast [[CF]]* [[TMP1]] to i64*
// CHECK-NEXT: [[T1:%.*]] = load i64* [[T0]], align 8
// CHECK-NEXT: [[T2:%.*]] = bitcast [[CF]]* [[DEST]] to i64*
// CHECK-NEXT: store atomic i64 [[T1]], i64* [[T2]] seq_cst, align 8
*fp = f;
// CHECK-NEXT: ret void
}
typedef struct { short x, y, z, w; } S;
// CHECK: define arm_aapcscc void @testStruct([[S:.*]]*
void testStruct(_Atomic(S) *fp) {
// CHECK: [[FP:%.*]] = alloca [[S]]*, align 4
// CHECK-NEXT: [[X:%.*]] = alloca [[S]], align 8
// CHECK-NEXT: [[F:%.*]] = alloca [[S:%.*]], align 2
// CHECK-NEXT: [[TMP0:%.*]] = alloca [[S]], align 8
// CHECK-NEXT: store [[S]]*
// CHECK-NEXT: [[P:%.*]] = load [[S]]** [[FP]]
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[P]], i32 0, i32 0
// CHECK-NEXT: store i16 1, i16* [[T0]], align 2
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[P]], i32 0, i32 1
// CHECK-NEXT: store i16 2, i16* [[T0]], align 2
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[P]], i32 0, i32 2
// CHECK-NEXT: store i16 3, i16* [[T0]], align 2
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[P]], i32 0, i32 3
// CHECK-NEXT: store i16 4, i16* [[T0]], align 2
__c11_atomic_init(fp, (S){1,2,3,4});
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[X]], i32 0, i32 0
// CHECK-NEXT: store i16 1, i16* [[T0]], align 2
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[X]], i32 0, i32 1
// CHECK-NEXT: store i16 2, i16* [[T0]], align 2
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[X]], i32 0, i32 2
// CHECK-NEXT: store i16 3, i16* [[T0]], align 2
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[X]], i32 0, i32 3
// CHECK-NEXT: store i16 4, i16* [[T0]], align 2
_Atomic(S) x = (S){1,2,3,4};
// CHECK-NEXT: [[T0:%.*]] = load [[S]]** [[FP]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[S]]* [[T0]] to i64*
// CHECK-NEXT: [[T2:%.*]] = load atomic i64* [[T1]] seq_cst, align 8
// CHECK-NEXT: [[T3:%.*]] = bitcast [[S]]* [[F]] to i64*
// CHECK-NEXT: store i64 [[T2]], i64* [[T3]], align 2
S f = *fp;
// CHECK-NEXT: [[T0:%.*]] = load [[S]]** [[FP]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[S]]* [[TMP0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = bitcast [[S]]* [[F]] to i8*
// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[T1]], i8* [[T2]], i32 8, i32 2, i1 false)
// CHECK-NEXT: [[T3:%.*]] = bitcast [[S]]* [[TMP0]] to i64*
// CHECK-NEXT: [[T4:%.*]] = load i64* [[T3]], align 8
// CHECK-NEXT: [[T5:%.*]] = bitcast [[S]]* [[T0]] to i64*
// CHECK-NEXT: store atomic i64 [[T4]], i64* [[T5]] seq_cst, align 8
*fp = f;
// CHECK-NEXT: ret void
}
typedef struct { short x, y, z; } PS;
// CHECK: define arm_aapcscc void @testPromotedStruct([[APS:.*]]*
void testPromotedStruct(_Atomic(PS) *fp) {
// CHECK: [[FP:%.*]] = alloca [[APS]]*, align 4
// CHECK-NEXT: [[X:%.*]] = alloca [[APS]], align 8
// CHECK-NEXT: [[F:%.*]] = alloca [[PS:%.*]], align 2
// CHECK-NEXT: [[TMP0:%.*]] = alloca [[APS]], align 8
// CHECK-NEXT: [[TMP1:%.*]] = alloca [[APS]], align 8
// CHECK-NEXT: store [[APS]]*
// CHECK-NEXT: [[P:%.*]] = load [[APS]]** [[FP]]
// CHECK-NEXT: [[T0:%.*]] = bitcast [[APS]]* [[P]] to i8*
// CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 8, i32 8, i1 false)
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[APS]]* [[P]], i32 0, i32 0
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 0
// CHECK-NEXT: store i16 1, i16* [[T1]], align 2
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 1
// CHECK-NEXT: store i16 2, i16* [[T1]], align 2
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 2
// CHECK-NEXT: store i16 3, i16* [[T1]], align 2
__c11_atomic_init(fp, (PS){1,2,3});
// CHECK-NEXT: [[T0:%.*]] = bitcast [[APS]]* [[X]] to i8*
// CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* [[T0]], i8 0, i32 8, i32 8, i1 false)
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[APS]]* [[X]], i32 0, i32 0
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 0
// CHECK-NEXT: store i16 1, i16* [[T1]], align 2
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 1
// CHECK-NEXT: store i16 2, i16* [[T1]], align 2
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 2
// CHECK-NEXT: store i16 3, i16* [[T1]], align 2
_Atomic(PS) x = (PS){1,2,3};
// CHECK-NEXT: [[T0:%.*]] = load [[APS]]** [[FP]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[APS]]* [[T0]] to i64*
// CHECK-NEXT: [[T2:%.*]] = load atomic i64* [[T1]] seq_cst, align 8
// CHECK-NEXT: [[T3:%.*]] = bitcast [[APS]]* [[TMP0]] to i64*
// CHECK-NEXT: store i64 [[T2]], i64* [[T3]], align 2
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[APS]]* [[TMP0]], i32 0, i32 0
// CHECK-NEXT: [[T1:%.*]] = bitcast [[PS]]* [[F]] to i8*
// CHECK-NEXT: [[T2:%.*]] = bitcast [[PS]]* [[T0]] to i8*
// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[T1]], i8* [[T2]], i32 6, i32 2, i1 false)
PS f = *fp;
// CHECK-NEXT: [[T0:%.*]] = load [[APS]]** [[FP]]
// CHECK-NEXT: [[T1:%.*]] = bitcast { %struct.PS, [2 x i8] }* [[TMP1]] to i8*
// CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* [[T1]], i8 0, i32 8, i32 8, i1 false)
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[APS]]* [[TMP1]], i32 0, i32 0
// CHECK-NEXT: [[T2:%.*]] = bitcast [[PS]]* [[T1]] to i8*
// CHECK-NEXT: [[T3:%.*]] = bitcast [[PS]]* [[F]] to i8*
// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[T2]], i8* [[T3]], i32 6, i32 2, i1 false)
// CHECK-NEXT: [[T4:%.*]] = bitcast [[APS]]* [[TMP1]] to i64*
// CHECK-NEXT: [[T5:%.*]] = load i64* [[T4]], align 8
// CHECK-NEXT: [[T6:%.*]] = bitcast [[APS]]* [[T0]] to i64*
// CHECK-NEXT: store atomic i64 [[T5]], i64* [[T6]] seq_cst, align 8
*fp = f;
// CHECK-NEXT: ret void
}
void testPromotedStructOps(_Atomic(PS) *p) {
PS a = __c11_atomic_load(p, 5);
__c11_atomic_store(p, a, 5);
PS b = __c11_atomic_exchange(p, a, 5);
_Bool v = __c11_atomic_compare_exchange_strong(p, &b, a, 5, 5);
v = __c11_atomic_compare_exchange_weak(p, &b, a, 5, 5);
}
|
