gcc/testsuite/gcc.dg/vect/vect-28.c

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