gcc/testsuite/gcc.target/i386/mmx-6.c

   1 /* PR middle-end/17767 */
   2 /* Contributed by Volker Reichelt <reichelt@igpm.rwth-aachen.de> */
   3 /* { dg-do compile } */
   4 /* { dg-options "-O -mmmx" } */
   5 typedef int __m64 __attribute__ ((vector_size (8)));
   6 typedef short __v4hi __attribute__ ((vector_size (8)));
   7
   8 __m64 foo ()
   9 {
  10   int i;
  11   __m64 m;
  12
  13   for (i = 0; i < 2; i++)
  14     m = (__m64) __builtin_ia32_pcmpeqw ((__v4hi) m, (__v4hi) m);
  15
  16   return m;
  17 }