File: atomic-noinline.c

package info (click to toggle)
gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 680,956 kB
  • sloc: ansic: 3,237,715; cpp: 896,882; ada: 772,854; f90: 144,254; asm: 68,788; makefile: 67,456; sh: 29,743; exp: 28,045; objc: 15,273; fortran: 11,885; python: 7,369; pascal: 5,375; awk: 3,725; perl: 2,872; yacc: 316; xml: 311; ml: 285; lex: 198; haskell: 122
file content (61 lines) | stat: -rw-r--r-- 1,454 bytes parent folder | download | duplicates (6)
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
/* Test generic __atomic routines for proper function calling.
   memory model.  */
/* { dg-options "-w -fno-inline-atomics" } */
/* { dg-do run } */
/* { dg-additional-sources "atomic-noinline-aux.c" } */

/* Test that -fno-inline-atomics works as expected.  
   atomic-generic-aux provide the expected routines which simply set the
   value of the first parameter to */

#include <stdlib.h>
#include <stdbool.h>

extern void abort (void);

short as,bs,cs,ds;
char ac,bc,cc;

int
main (void)
{

  ac = __atomic_exchange_n (&bc, cc, __ATOMIC_RELAXED);
  if (bc != 1)
    abort ();

  as = __atomic_load_n (&bs, __ATOMIC_SEQ_CST);
  if (bs != 1)
    abort ();

  __atomic_store_n (&ac, bc, __ATOMIC_RELAXED);
  if (ac != 1)
    abort ();

  __atomic_compare_exchange_n (&as, &bs, cs, 0, __ATOMIC_SEQ_CST, __ATOMIC_ACQUIRE);
  if (as != 1)
    abort ();

  ac = __atomic_fetch_add (&cc, 15, __ATOMIC_SEQ_CST);
  if (cc != 1)
    abort ();

  /* This should be translated to __atomic_fetch_add for the library */
  as = __atomic_add_fetch (&cs, 10, __ATOMIC_RELAXED);
  if (cs != 1)
    abort ();

  /* PR 51040 was caused by arithmetic code not patching up nand_fetch properly
     when used an an external function.  Look for proper return value here.  */
  ac = 0x3C;
  bc = __atomic_nand_fetch (&ac, 0x0f, __ATOMIC_RELAXED);
  if (bc != ac)
    abort ();

  if (!__atomic_is_lock_free (2, &ds))
    abort ();
  if (ds != 1)
    abort ();

  return 0;
}