gcc/testsuite/gcc.target/i386/vect-perm-even-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -ftree-vectorize -ffast-math -mavx512bw -save-temps" } */
   3 /* { dg-require-effective-target avx512bw } */
   4
   5 #include "avx512bw-check.h"
   6
   7 #define N 400
   8 unsigned char yy[10000];
   9 unsigned char xx[10000];
  10
  11 void
  12 __attribute__ ((noinline)) foo (unsigned short s)
  13 {
  14    unsigned short i;
  15    for (i = 0; i < s; i++)
  16      yy[i] = xx [i*2 + 1];
  17 }
  18
  19 void
  20 avx512bw_test ()
  21 {
  22   unsigned short i;
  23   unsigned char j = 0;
  24   for (i = 0; i < 2 * N + 1; i++, j++)
  25     xx [i] = j;
  26
  27   foo (N);
  28
  29   for (i = 0; i < N; i++)
  30     if ( (unsigned char)(2*i+1) != yy [i] )
  31       abort ();
  32 }
  33
  34 /* { dg-final { scan-assembler-times "vpmovwb\[ \\t\]+\[^\n\]*%zmm" 2 } } */