gcc/testsuite/gcc.target/aarch64/atomic-comp-swap-release-acquire.c

/* { dg-do compile } */
/* { dg-options "-O2" } */

#define STRONG 0
#define WEAK 1
int v = 0;

int
atomic_compare_exchange_STRONG_RELEASE_ACQUIRE (int a, int b)
{
  return __atomic_compare_exchange (&v, &a, &b,
				    STRONG, __ATOMIC_RELEASE,
				    __ATOMIC_ACQUIRE);
}

int
atomic_compare_exchange_WEAK_RELEASE_ACQUIRE (int a, int b)
{
  return __atomic_compare_exchange (&v, &a, &b,
				    WEAK, __ATOMIC_RELEASE,
				    __ATOMIC_ACQUIRE);
}

int
atomic_compare_exchange_n_STRONG_RELEASE_ACQUIRE (int a, int b)
{
  return __atomic_compare_exchange_n (&v, &a, b,
				      STRONG, __ATOMIC_RELEASE,
				      __ATOMIC_ACQUIRE);
}

int
atomic_compare_exchange_n_WEAK_RELEASE_ACQUIRE (int a, int b)
{
  return __atomic_compare_exchange_n (&v, &a, b,
				      WEAK, __ATOMIC_RELEASE,
				      __ATOMIC_ACQUIRE);
}

/* { dg-final { scan-assembler-times "ldaxr\tw\[0-9\]+, \\\[x\[0-9\]+\\\]" 4 } } */
/* { dg-final { scan-assembler-times "stlxr\tw\[0-9\]+, w\[0-9\]+, \\\[x\[0-9\]+\\\]" 4 } } */