gcc/testsuite/gcc.dg/vect/vect-97.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 typedef char achar __attribute__ ((__aligned__(16)));
   7
   8 #define N 16
   9
  10 int main1 ()
  11 {
  12   struct {
  13     achar *p;
  14     achar *q;
  15   } s;
  16   int i;
  17   achar x[N];
  18   achar cb[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  19
  20   s.p = x;
  21   for (i = 0; i < N; i++)
  22     {
  23       s.p[i] = cb[i];
  24     }
  25
  26   /* check results:  */
  27   for (i = 0; i < N; i++)
  28     {
  29       if (s.p[i] != cb[i])
  30         abort ();
  31     }
  32
  33   s.q = cb;
  34   for (i = 0; i < N; i++)
  35     {
  36       s.p[i] = s.q[i];
  37     }
  38
  39   /* check results:  */
  40   for (i = 0; i < N; i++)
  41     {
  42       if (s.p[i] != s.q[i])
  43         abort ();
  44     }
  45
  46   return 0;
  47 }
  48
  49 int main (void)
  50 {
  51   check_vect ();
  52
  53   return main1 ();
  54 }
  55
  56
  57 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" } } */
  58 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */