gcc/testsuite/gcc.dg/pr29581-4.c

   1 /* PR tree-optimization/29581 */
   2 /* Origin: gcc.dg/vect/vect-88.c */
   3 /* { dg-do run } */
   4 /* { dg-options "-O2 -ftree-loop-linear" } */
   5
   6 extern void abort (void);
   7
   8 #define N 16
   9
  10 int main1 (int n, int *a)
  11 {
  12   int i, j, k;
  13   int b[N];
  14
  15   for (i = 0; i < n; i++)
  16     {
  17       for (j = 0; j < n; j++)
  18         {
  19           k = i + n;
  20           a[j] = k;
  21         }
  22       b[i] = k;
  23     }
  24
  25
  26   for (j = 0; j < n; j++)
  27     if (a[j] != i + n - 1)
  28       abort();
  29
  30   for (j = 0; j < n; j++)
  31     if (b[j] != j + n)
  32       abort();
  33
  34   return 0;
  35 }
  36
  37 int main (void)
  38 {
  39   int a[N+1] __attribute__ ((__aligned__(16)));
  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 }