gcc/testsuite/gcc.dg/pr50310-1.c

/* PR target/50310 */
/* { dg-do run } */
/* { dg-options "-O3" } */
/* { dg-options "-O3 -mavx -mno-avx2" { target avx_runtime } } */

double s1[4], s2[4];
long long e[4];

int
main ()
{
  int i;
  asm volatile ("" : : : "memory");
  for (i = 0; i < 4; i++)
    e[i] = __builtin_isunordered (s1[i], s2[i]) && s1[i] != s2[i] ? -1 : 0;
  asm volatile ("" : : : "memory");
  return 0;
}