gcc/testsuite/gcc.target/i386/avx-vzeroupper-19.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -mavx -mtune=generic -dp" } */
   3
   4 void feat_s3_cep_dcep (int cepsize_used, float **mfc, float **feat)
   5 {
   6   float *f;
   7   float *w, *_w;
   8   int i;
   9   __builtin_memcpy (feat[0], mfc[0], cepsize_used * sizeof(float));
  10   f = feat[0] + cepsize_used;
  11   w = mfc[2];
  12   _w = mfc[-2];
  13   for (i = 0; i < cepsize_used; i++)
  14     f[i] = w[i] - _w[i];
  15 }
  16
  17 /* { dg-final { scan-assembler-times "avx_vzeroupper" 2 } } */