gcc/testsuite/gcc.dg/vect/vect-2-big-array.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-add-options bind_pic_locally } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 128
   8
   9 char cb[N];
  10 char ca[N];
  11
  12 __attribute__ ((noinline))
  13 int main1 ()
  14 {
  15   int i;
  16
  17   for (i = 0; i < N; i++)
  18     {
  19       cb[i] = i*3;
  20       asm volatile ("" ::: "memory");
  21     }
  22
  23   for (i = 0; i < N; i++)
  24     {
  25       ca[i] = cb[i];
  26     }
  27
  28   /* check results:  */
  29   for (i = 0; i < N; i++)
  30     {
  31       if (ca[i] != cb[i])
  32         abort ();
  33     }
  34
  35   return 0;
  36 }
  37
  38 int main (void)
  39 {
  40   check_vect ();
  41
  42   return main1 ();
  43 }
  44
  45 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  46 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */