gcc/testsuite/gcc.dg/vect/vect-27.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 int ia[N];
  11 int ib[N+1];
  12
  13 __attribute__ ((noinline))
  14 int main1 ()
  15 {
  16   int i;
  17
  18   for (i=0; i <= N; i++)
  19     {
  20       ib[i] = i;
  21     }
  22
  23   for (i = 1; i <= N; i++)
  24     {
  25       ia[i-1] = ib[i];
  26     }
  27
  28   /* check results:  */
  29   for (i = 1; i <= N; i++)
  30     {
  31       if (ia[i-1] != ib[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 /* The initialization induction loop (with aligned access) is also vectorized.  */
  46 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { xfail vect_no_align } } } */
  47 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_no_align } } } */
  48 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail vect_no_align } } } */
  49 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */
  50 /* { dg-final { cleanup-tree-dump "vect" } } */