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
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/* PR middle-end/99612 - Missing warning on incorrect memory order without
-Wsystem-headers
Verify that constants are propagated through calls to inline functions
even at -O0.
Also verify that the informational notes after each warning mention
the valid memore models for each function.
{ dg-do compile }
{ dg-options "-O0 -ftrack-macro-expansion=0" } */
#if !__cplusplus
# define bool _Bool
#endif
extern int ei;
static __attribute__ ((always_inline)) inline
int retval (int val)
{
return val;
}
void test_load (int *pi)
{
int relaxed = retval (__ATOMIC_RELAXED);
*pi++ = __atomic_load_n (&ei, relaxed);
int consume = retval (__ATOMIC_CONSUME);
*pi++ = __atomic_load_n (&ei, consume);
int acquire = retval (__ATOMIC_ACQUIRE);
*pi++ = __atomic_load_n (&ei, acquire);
int release = retval (__ATOMIC_RELEASE);
*pi++ = __atomic_load_n (&ei, release); // { dg-warning "invalid memory model 'memory_order_release'" }
// { dg-message "valid models are 'memory_order_relaxed', 'memory_order_seq_cst', 'memory_order_acquire', 'memory_order_consume'" "note" { target *-*-* } .-1 }
int acq_rel = retval (__ATOMIC_ACQ_REL);
*pi++ = __atomic_load_n (&ei, acq_rel); // { dg-warning "invalid memory model 'memory_order_acq_rel'" }
int seq_cst = retval (__ATOMIC_SEQ_CST);
*pi++ = __atomic_load_n (&ei, seq_cst);
/* Verify a nonconstant range. */
int r0_1 = *pi++;
if (r0_1 < 0 || 1 < r0_1)
r0_1 = 0;
*pi++ = __atomic_load_n (&ei, r0_1);
/* Verify an unbounded range. */
int unknown = *pi++;
*pi++ = __atomic_load_n (&ei, unknown);
}
void test_store (int *pi, int x)
{
int relaxed = retval (__ATOMIC_RELAXED);
__atomic_store_n (pi++, x, relaxed);
int consume = retval (__ATOMIC_CONSUME);
__atomic_store_n (pi++, x, consume); // { dg-warning "invalid memory model 'memory_order_consume'" }
// { dg-message "valid models are 'memory_order_relaxed', 'memory_order_seq_cst', 'memory_order_release'" "note" { target *-*-* } .-1 }
int acquire = retval (__ATOMIC_ACQUIRE);
__atomic_store_n (pi++, x, acquire); // { dg-warning "invalid memory model 'memory_order_acquire'" }
int release = retval (__ATOMIC_RELEASE);
__atomic_store_n (pi++, x, release);
int acq_rel = retval (__ATOMIC_ACQ_REL);
__atomic_store_n (pi++, x, acq_rel); // { dg-warning "invalid memory model 'memory_order_acq_rel'" }
int seq_cst = retval (__ATOMIC_SEQ_CST);
__atomic_store_n (pi++, x, seq_cst);
int unknown = *pi++;
__atomic_store_n (pi++, x, unknown);
}
/* All memory models are valid. */
void test_exchange (int *pi, int x)
{
int relaxed = retval (__ATOMIC_RELAXED);
__atomic_exchange_n (pi++, x, relaxed);
int consume = retval (__ATOMIC_CONSUME);
__atomic_exchange_n (pi++, x, consume);
int acquire = retval (__ATOMIC_ACQUIRE);
__atomic_exchange_n (pi++, x, acquire);
int release = retval (__ATOMIC_RELEASE);
__atomic_exchange_n (pi++, x, release);
int acq_rel = retval (__ATOMIC_ACQ_REL);
__atomic_exchange_n (pi++, x, acq_rel);
int seq_cst = retval (__ATOMIC_SEQ_CST);
__atomic_exchange_n (pi++, x, seq_cst);
int unknown = *pi++;
__atomic_exchange_n (pi++, x, unknown);
}
void test_compare_exchange (int *pi, int *pj, bool weak)
{
#define cmpxchg(x, expect, desire, sucs_ord, fail_ord) \
__atomic_compare_exchange_n (x, expect, desire, weak, sucs_ord, fail_ord)
int relaxed = retval (__ATOMIC_RELAXED);
cmpxchg (&ei, pi++, *pj++, relaxed, relaxed);
int consume = retval (__ATOMIC_CONSUME);
cmpxchg (&ei, pi++, *pj++, relaxed, consume); // { dg-warning "failure memory model 'memory_order_consume' cannot be stronger than success memory model 'memory_order_relaxed'" }
int acquire = retval (__ATOMIC_ACQUIRE);
cmpxchg (&ei, pi++, *pj++, relaxed, acquire); // { dg-warning "failure memory model 'memory_order_acquire' cannot be stronger than success memory model 'memory_order_relaxed'" }
int release = retval (__ATOMIC_RELEASE);
cmpxchg (&ei, pi++, *pj++, relaxed, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
int acq_rel = retval (__ATOMIC_ACQ_REL);
cmpxchg (&ei, pi++, *pj++, relaxed, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
int seq_cst = retval (__ATOMIC_SEQ_CST);
cmpxchg (&ei, pi++, *pj++, relaxed, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_relaxed'" }
cmpxchg (&ei, pi++, *pj++, consume, relaxed);
cmpxchg (&ei, pi++, *pj++, consume, consume);
cmpxchg (&ei, pi++, *pj++, consume, acquire); // { dg-warning "failure memory model 'memory_order_acquire' cannot be stronger than success memory model 'memory_order_consume'" }
cmpxchg (&ei, pi++, *pj++, consume, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
cmpxchg (&ei, pi++, *pj++, consume, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
cmpxchg (&ei, pi++, *pj++, consume, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_consume'" }
cmpxchg (&ei, pi++, *pj++, acquire, relaxed);
cmpxchg (&ei, pi++, *pj++, acquire, consume);
cmpxchg (&ei, pi++, *pj++, acquire, acquire);
cmpxchg (&ei, pi++, *pj++, acquire, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
cmpxchg (&ei, pi++, *pj++, acquire, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
cmpxchg (&ei, pi++, *pj++, acquire, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_acquire'" }
cmpxchg (&ei, pi++, *pj++, release, relaxed);
cmpxchg (&ei, pi++, *pj++, release, consume);
cmpxchg (&ei, pi++, *pj++, release, acquire);
cmpxchg (&ei, pi++, *pj++, release, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
cmpxchg (&ei, pi++, *pj++, release, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
cmpxchg (&ei, pi++, *pj++, release, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_release'" }
cmpxchg (&ei, pi++, *pj++, acq_rel, relaxed);
cmpxchg (&ei, pi++, *pj++, acq_rel, consume);
cmpxchg (&ei, pi++, *pj++, acq_rel, acquire);
cmpxchg (&ei, pi++, *pj++, acq_rel, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
cmpxchg (&ei, pi++, *pj++, acq_rel, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
cmpxchg (&ei, pi++, *pj++, acq_rel, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_acq_rel'" }
cmpxchg (&ei, pi++, *pj++, seq_cst, relaxed);
cmpxchg (&ei, pi++, *pj++, seq_cst, consume);
cmpxchg (&ei, pi++, *pj++, seq_cst, acquire);
cmpxchg (&ei, pi++, *pj++, seq_cst, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
cmpxchg (&ei, pi++, *pj++, seq_cst, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
cmpxchg (&ei, pi++, *pj++, seq_cst, seq_cst);
int unknown = *pi++;
cmpxchg (&ei, pi++, *pj++, unknown, seq_cst);
cmpxchg (&ei, pi++, *pj++, relaxed, unknown);
}
/* All memory models are valid. */
void test_add_fetch (unsigned *pi, unsigned x)
{
int relaxed = retval (__ATOMIC_RELAXED);
__atomic_add_fetch (pi++, x, relaxed);
int consume = retval (__ATOMIC_CONSUME);
__atomic_add_fetch (pi++, x, consume);
int acquire = retval (__ATOMIC_ACQUIRE);
__atomic_add_fetch (pi++, x, acquire);
int release = retval (__ATOMIC_RELEASE);
__atomic_add_fetch (pi++, x, release);
int acq_rel = retval (__ATOMIC_ACQ_REL);
__atomic_add_fetch (pi++, x, acq_rel);
int seq_cst = retval (__ATOMIC_SEQ_CST);
__atomic_add_fetch (pi++, x, seq_cst);
int invalid;
if (x & 1)
{
invalid = retval (123);
__atomic_add_fetch (pi++, x, invalid); // { dg-warning "invalid memory model 123 for '\(unsigned int \)?__atomic_add_fetch" }
}
else
{
invalid = retval (456);
__atomic_add_fetch (pi++, x, invalid); // { dg-warning "invalid memory model 456 for '\(unsigned int \)?__atomic_add_fetch" }
}
}
void test_sub_fetch (unsigned *pi, unsigned x)
{
int relaxed = retval (__ATOMIC_RELAXED);
__atomic_sub_fetch (pi++, x, relaxed);
int consume = retval (__ATOMIC_CONSUME);
__atomic_sub_fetch (pi++, x, consume);
int acquire = retval (__ATOMIC_ACQUIRE);
__atomic_sub_fetch (pi++, x, acquire);
int release = retval (__ATOMIC_RELEASE);
__atomic_sub_fetch (pi++, x, release);
int acq_rel = retval (__ATOMIC_ACQ_REL);
__atomic_sub_fetch (pi++, x, acq_rel);
int seq_cst = retval (__ATOMIC_SEQ_CST);
__atomic_sub_fetch (pi++, x, seq_cst);
int invalid;
if (x & 1)
{
invalid = retval (123);
__atomic_sub_fetch (pi++, x, invalid); // { dg-warning "invalid memory model 123 for '\(unsigned int \)?__atomic_sub_fetch" }
}
else
{
invalid = retval (456);
__atomic_sub_fetch (pi++, x, invalid); // { dg-warning "invalid memory model 456 for '\(unsigned int \)?__atomic_sub_fetch" }
}
}
|
