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

   1 /* { dg-do run } */
   2 /* { dg-additional-options "-Ofast -fno-common" } */
   3 /* { dg-additional-options "-Ofast -fno-common -mavx" { target avx_runtime } } */
   4
   5 #include <stdlib.h>
   6 #include "tree-vect.h"
   7
   8 __attribute__((noinline, noclone)) void
   9 foo (double *x, double *y)
  10 {
  11   double *p = __builtin_assume_aligned (x, 16);
  12   double *q = __builtin_assume_aligned (y, 16);
  13   double z, h;
  14   int i;
  15   for (i = 0; i < 1024; i++)
  16     {
  17       if (p[i] < 0.0)
  18         z = q[i], h = q[i] * 7.0 + 3.0;
  19       else
  20         z = p[i] + 6.0, h = p[1024 + i];
  21       p[i] = z + 2.0 * h;
  22     }
  23 }
  24
  25 double a[2048] __attribute__((aligned (16)));
  26 double b[1024] __attribute__((aligned (16)));
  27
  28 int
  29 main ()
  30 {
  31   int i;
  32   check_vect ();
  33   for (i = 0; i < 1024; i++)
  34     {
  35       a[i] = (i & 1) ? -i : 2 * i;
  36       a[i + 1024] = i;
  37       b[i] = 7 * i;
  38       asm ("");
  39     }
  40   foo (a, b);
  41   for (i = 0; i < 1024; i++)
  42     if (a[i] != ((i & 1)
  43                  ? 7 * i + 2.0 * (7 * i * 7.0 + 3.0)
  44                  : 2 * i + 6.0 + 2.0 * i)
  45         || b[i] != 7 * i
  46         || a[i + 1024] != i)
  47       abort ();
  48   return 0;
  49 }
  50
  51 /* { dg-final { scan-tree-dump-times "note: vectorized 1 loops" 1 "vect" { target avx_runtime } } } */
  52 /* { dg-final { cleanup-tree-dump "vect" } } */