1 /* { dg-do compile } */
2 /* { dg-options "-march=armv8.4-a -O2" } */
3
4 #include <stdatomic.h>
5
6 typedef __INT8_TYPE__ int8_t;
7 typedef __INT16_TYPE__ int16_t;
8 typedef __INT32_TYPE__ int32_t;
9 typedef __INT64_TYPE__ int64_t;
10
11 #define STORE_TESTS(size) \
12 void \
13 foo##size (int##size##_t *atomic_vals) \
14 { \
15 atomic_store_explicit (atomic_vals, 2, memory_order_relaxed); \
16 atomic_store_explicit (atomic_vals, 2, memory_order_release); \
17 atomic_store_explicit ((atomic_vals + 1), 2, memory_order_release); \
18 atomic_store ((atomic_vals + 2), 2); \
19 atomic_store_explicit ((atomic_vals + 3), 2, memory_order_relaxed); \
20 }
21
22 STORE_TESTS (8);
23 /* { dg-final { scan-assembler-times "strb\tw\[0-9\]+, \\\[x\[0-9\]+\\\]" 1 } } */
24 /* { dg-final { scan-assembler-times "stlrb\tw\[0-9\]+, \\\[x\[0-9\]+\\\]" 1 { target { ! ilp32 } } } } */
25 /* { dg-final { scan-assembler-times "stlrb\tw\[0-9\]+, \\\[x\[0-9\]+\\\]" 2 { target { ilp32 } } } } */
26 /* { dg-final { scan-assembler-times "stlurb\tw\[0-9\]+, \\\[x\[0-9\]+, 1\\\]" 1 } } */
27 /* { dg-final { scan-assembler-times "stlurb\tw\[0-9\]+, \\\[x\[0-9\]+, 2\\\]" 1 } } */
28 /* { dg-final { scan-assembler-times "strb\tw\[0-9\]+, \\\[x\[0-9\]+, 3\\\]" 1 } } */
29
30 STORE_TESTS (16);
31 /* { dg-final { scan-assembler-times "strh\tw\[0-9\]+, \\\[x\[0-9\]+\\\]" 1 } } */
32 /* { dg-final { scan-assembler-times "stlrh\tw\[0-9\]+, \\\[x\[0-9\]+\\\]" 1 } } */
33 /* { dg-final { scan-assembler-times "stlurh\tw\[0-9\]+, \\\[x\[0-9\]+, 2\\\]" 1 } } */
34 /* { dg-final { scan-assembler-times "stlurh\tw\[0-9\]+, \\\[x\[0-9\]+, 4\\\]" 1 } } */
35 /* { dg-final { scan-assembler-times "strh\tw\[0-9\]+, \\\[x\[0-9\]+, 6\\\]" 1 } } */
36
37 STORE_TESTS (32);
38 /* { dg-final { scan-assembler-times "str\tw\[0-9\]+, \\\[x\[0-9\]+\\\]" 1 } } */
39 /* { dg-final { scan-assembler-times "stlr\tw\[0-9\]+, \\\[x\[0-9\]+\\\]" 1 } } */
40 /* { dg-final { scan-assembler-times "stlur\tw\[0-9\]+, \\\[x\[0-9\]+, 4\\\]" 1 } } */
41 /* { dg-final { scan-assembler-times "stlur\tw\[0-9\]+, \\\[x\[0-9\]+, 8\\\]" 1 } } */
42 /* { dg-final { scan-assembler-times "str\tw\[0-9\]+, \\\[x\[0-9\]+, 12\\\]" 1 } } */
43
44 STORE_TESTS (64);
45 /* { dg-final { scan-assembler-times "str\tx\[0-9\]+, \\\[x\[0-9\]+\\\]" 1 } } */
46 /* { dg-final { scan-assembler-times "stlur\tx\[0-9\]+, \\\[x\[0-9\]+, 8\\\]" 1 } } */
47 /* { dg-final { scan-assembler-times "stlur\tx\[0-9\]+, \\\[x\[0-9\]+, 16\\\]" 1 } } */
48 /* { dg-final { scan-assembler-times "str\tx\[0-9\]+, \\\[x\[0-9\]+, 24\\\]" 1 } } */
49
50 void
foo_toolarge_offset(int64_t * atomic_vals)51 foo_toolarge_offset (int64_t *atomic_vals)
52 {
53 /* 9bit signed unscaled immediate =>
54 largest representable value +255.
55 smallest representable value -256. */
56 atomic_store_explicit (atomic_vals + 32, 2, memory_order_release);
57 atomic_store_explicit (atomic_vals - 33, 2, memory_order_release);
58 }
59
60 void
foo_negative(int8_t * atomic_vals)61 foo_negative (int8_t *atomic_vals)
62 {
63 atomic_store_explicit (atomic_vals - 2, 2, memory_order_release);
64 }
65 /* { dg-final { scan-assembler-times "stlurb\tw\[0-9\]+, \\\[x\[0-9\]+, -2\\\]" 1 { target { ! ilp32 } } } } */
66
67 #pragma GCC target ("arch=armv8.3-a")
68 void
foo_older_arch(int64_t * atomic_vals)69 foo_older_arch (int64_t *atomic_vals)
70 {
71 atomic_store_explicit (atomic_vals + 2, 2, memory_order_release);
72 }
73
74 /* Three times, one for each of the three above functions. */
75 /* { dg-final { scan-assembler-times "stlr\tx\[0-9\]+, \\\[x\[0-9\]+\\\]" 4 } } */
76