gcc/testsuite/gcc.dg/vect/vect-86.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-add-options bind_pic_locally } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 16
   8
   9 int a[N];
  10
  11 __attribute__ ((noinline))
  12 int main1 (int n)
  13 {
  14   int i, j, k;
  15   int b[N];
  16
  17   for (i = 0; i < n; i++)
  18     {
  19       for (j = 0; j < n; j++)
  20         {
  21           k = i + n;
  22           a[j] = k;
  23         }
  24       b[i] = k;
  25     }
  26
  27
  28   for (j = 0; j < n; j++)
  29     if (a[j] != i + n - 1)
  30       abort();
  31
  32   for (i = 0; i < n; i++)
  33     if (b[i] != i + n)
  34       abort();
  35
  36   return 0;
  37 }
  38
  39 int main (void)
  40 {
  41   check_vect ();
  42
  43   main1 (N);
  44   main1 (0);
  45   main1 (1);
  46   main1 (2);
  47   main1 (N-1);
  48
  49   return 0;
  50 }
  51
  52 /* Fails for targets that don't vectorize PLUS (e.g alpha).  */
  53 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  54 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  55 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */