1  /* { dg-do run } */
       2  /* { dg-options "-O2 -mavx" } */
       3  /* { dg-require-effective-target avx } */
       4  
       5  #include "avx-check.h"
       6  
       7  void
       8  __attribute__ ((noipa))
       9  mtest(char *dest)
      10  {
      11    __m256i ymm1 = _mm256_set1_epi8((char)0x1);
      12    _mm256_storeu_si256((__m256i *)(dest + 32), ymm1);
      13    _mm256_zeroupper();
      14    __m256i ymm2 = _mm256_set1_epi8((char)0x1);
      15    _mm256_storeu_si256((__m256i *)dest, ymm2);
      16  }
      17  
      18  void
      19  avx_test ()
      20  {
      21    char buf[64];
      22    for (int i = 0; i != 64; i++)
      23      buf[i] = 2;
      24    mtest (buf);
      25  
      26    for (int i = 0; i < 32; ++i)
      27      if (buf[i] != 1)
      28        __builtin_abort ();
      29  }