gcc/testsuite/gcc.target/i386/pr52736.c

   1 /* PR target/52736 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O1 -msse2" } */
   4 /* { dg-require-effective-target sse2_runtime } */
   5
   6 #include <x86intrin.h>
   7
   8 typedef double D __attribute__((may_alias));
   9 __attribute__((aligned(16))) static const double r[4] = { 1., 5., 1., 3. };
  10
  11 __attribute__((noinline, noclone))
  12 void
  13 foo (int x)
  14 {
  15   asm volatile ("" : "+g" (x) : : "memory");
  16   if (x != 3)
  17     __builtin_abort ();
  18 }
  19
  20 int
  21 main ()
  22 {
  23   __m128d t = _mm_set1_pd (5.);
  24   ((D *)(&t))[0] = 1.;
  25   foo (_mm_movemask_pd (_mm_cmpeq_pd (t, _mm_load_pd (&r[0]))));
  26   ((D *)(&t))[1] = 3.;
  27   foo (_mm_movemask_pd (_mm_cmpeq_pd (t, _mm_load_pd (&r[2]))));
  28   return 0;
  29 }