gcc/testsuite/gcc.target/i386/avx-vzeroupper-2.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx } */
   3 /* { dg-options "-O2 -mavx -mtune=generic" } */
   4
   5 #include "avx-check.h"
   6
   7 static int s[4] = {234566, 8723467, 6576856, 19832468};
   8 static int d[4] = {1,1,1,1};
   9
  10 static void
  11 avx_test (void)
  12 {
  13   __m128i src;
  14
  15   src = _mm_loadu_si128 ((__m128i*) s);
  16   _mm256_zeroupper ();
  17   _mm_storeu_si128 ((__m128i*) d, src);
  18
  19   if (__builtin_memcmp (d, s, sizeof (d)))
  20     abort ();
  21 }