gcc/testsuite/gcc.dg/vect/vect-mask-loadstore-1.c

   1 /* { dg-additional-options "-Ofast -fno-common" } */
   2 /* { dg-additional-options "-Ofast -fno-common -mavx" { target avx_runtime } } */
   3
   4 #include "tree-vect.h"
   5
   6 __attribute__((noinline, noclone)) void
   7 foo (float *__restrict x, float *__restrict y, float *__restrict z)
   8 {
   9   float *__restrict p = __builtin_assume_aligned (x, 32);
  10   float *__restrict q = __builtin_assume_aligned (y, 32);
  11   float *__restrict r = __builtin_assume_aligned (z, 32);
  12   int i;
  13   for (i = 0; i < 1024; i++)
  14     {
  15       if (p[i] < 0.0f)
  16         q[i] = p[i] + 2.0f;
  17       else
  18         p[i] = r[i] + 3.0f;
  19     }
  20 }
  21
  22 float a[1024] __attribute__((aligned (32)));
  23 float b[1024] __attribute__((aligned (32)));
  24 float c[1024] __attribute__((aligned (32)));
  25
  26 int
  27 main ()
  28 {
  29   int i;
  30   check_vect ();
  31   for (i = 0; i < 1024; i++)
  32     {
  33       a[i] = (i & 1) ? -i : i;
  34       b[i] = 7 * i;
  35       c[i] = a[i] - 3.0f;
  36       asm ("");
  37     }
  38   foo (a, b, c);
  39   for (i = 0; i < 1024; i++)
  40     if (a[i] != ((i & 1) ? -i : i)
  41         || b[i] != ((i & 1) ? a[i] + 2.0f : 7 * i)
  42         || c[i] != a[i] - 3.0f)
  43       abort ();
  44   return 0;
  45 }
  46
  47 /* { dg-final { scan-tree-dump-times "note: vectorized 1 loops" 1 "vect" { target avx_runtime } } } */