gcc/testsuite/gcc.target/i386/vect-perm-odd-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
   9 typedef struct
  10 {
  11   unsigned char real;
  12   unsigned char imag;
  13 } complex8_t;
  14
  15 void
  16 __attribute__ ((noinline)) foo (unsigned char *a,
  17                                 complex8_t *x, unsigned len)
  18 {
  19   unsigned i;
  20   for (i = 0; i < len; i++)
  21     a[i] = x[i].imag + x[i].real;
  22 }
  23
  24 void
  25 avx512bw_test ()
  26 {
  27   unsigned short i;
  28   unsigned char j = 0;
  29   complex8_t x [N];
  30   unsigned char a [N];
  31
  32   for (i = 0; i < N; i++, j++)
  33     {
  34       x [i].real = j;
  35       x [i].imag = j;
  36     }
  37
  38   foo (a, x, N);
  39
  40   j = 0;
  41   for (i = 0; i < N; i++, j++)
  42     if ( a[i] != (unsigned char)(j+j) )
  43       abort ();
  44 }
  45
  46 /* { dg-final { scan-assembler-times "vpmovwb\[ \\t\]+\[^\n\]*%zmm" 4 } } */