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/* { dg-do run } */
/* { dg-options "-O2 -mcx16" { target { { i?86-*-* x86_64-*-* } && lp64 } } } */
 
#ifdef __x86_64__
#include "cpuid.h"
#endif
 
double d = 1.5;
long double ld = 3;
extern void abort (void);
 
void
test (void)
{
#pragma omp atomic
  d *= 1.25;
#pragma omp atomic
  ld /= 0.75;
  if (d != 1.875 || ld != 4.0L)
    abort ();
}
 
int
main (void)
{
#ifdef __x86_64__
  unsigned int eax, ebx, ecx, edx;
 
  if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
    return 0;
 
  if (!(ecx & bit_CMPXCHG16B))
    return 0;
#endif
  test ();
  return 0;
}