gcc/testsuite/gcc.target/i386/writeeflags-1.c


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/* { dg-do run } */
/* { dg-options "-O0" } */

#include <x86intrin.h>

#ifdef __x86_64__
#define EFLAGS_TYPE unsigned long long int
#else
#define EFLAGS_TYPE unsigned int
#endif

int
main ()
{
  EFLAGS_TYPE flags = 0xD7; /* 111010111b  */

  __writeeflags (flags);

  flags = __readeflags ();

  if ((flags & 0xFF) != 0xD7)
    abort ();

#ifdef DEBUG
    printf ("PASSED\n");
#endif

  return 0;
}