vect-72.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 128
   7
   8 /* unaligned load.  */
   9
  10 char ia[N];
  11 char ib[N+1];
  12
  13 __attribute__ ((noinline))
  14 int main1 ()
  15 {
  16   int i;
  17
  18   for (i=0; i < N+1; i++)
  19     {
  20       ib[i] = i;
  21       /* Avoid vectorization.  */
  22       if (i%3 == 0)
  23         ib[i] = 5;
  24     }
  25
  26   for (i = 1; i < N+1; i++)
  27     {
  28       ia[i-1] = ib[i];
  29     }
  30
  31   /* check results:  */
  32   for (i = 1; i <= N; i++)
  33     {
  34       if (ia[i-1] != ib[i])
  35         abort ();
  36     }
  37
  38   return 0;
  39 }
  40
  41 int main (void)
  42 {
  43   check_vect ();
  44
  45   return main1 ();
  46 }
  47
  48 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_align } } } */
  49 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail vect_no_align } } } */
  50 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */
  51 /* { dg-final { cleanup-tree-dump "vect" } } */