old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-88.c

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