gcc/testsuite/gcc.dg/vect/vect-36.c

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