gcc/testsuite/gcc.dg/vect/pr80815-1.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include "tree-vect.h"
   4 int arr[2048];
   5
   6 __attribute__ ((noinline)) int
   7 foo (int *a, int *b)
   8 {
   9   int i;
  10   int *a1 = a;
  11   int *a0 = a1 - 512;
  12   for (i = 0; i < 500; i++)
  13     {
  14       *b = *a0 + *a1;
  15       b++;
  16       a0--;
  17       a1--;
  18     }
  19   return 0;
  20 }
  21
  22 int main (void)
  23 {
  24   int *a = &arr[1027];
  25   int *b = &arr[1024];
  26
  27   int i;
  28   for (i = 0; i < 2048; i++)
  29     arr[i] = i;
  30
  31   foo (a, b);
  32
  33   if (arr[1026] != 2053 || arr[1027] != 2054)
  34     abort ();
  35
  36   return 0;
  37 }
  38