gcc/testsuite/gcc.target/i386/vect-unpack-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 255
   8 unsigned int yy[10000];
   9
  10 void
  11 __attribute__ ((noinline)) foo (unsigned char s)
  12 {
  13    unsigned char i;
  14    for (i = 0; i < s; i++)
  15      yy[i] = (unsigned int) i;
  16 }
  17
  18 void
  19 avx512bw_test ()
  20 {
  21   unsigned char i;
  22   foo (N);
  23   for (i = 0; i < N; i++)
  24     if ( (unsigned int)i != yy [i] )
  25       abort ();
  26 }
  27
  28 /* { dg-final { scan-assembler-times "vpmovzxbw\[ \\t\]+\[^\n\]*%zmm" 2 } } */