gcc/testsuite/gcc.dg/tree-ssa/loop-22.c

   1 /* { dg-options "-O2 -fdump-tree-optimized" } */
   2
   3 int a[100];
   4
   5 void test (int n)
   6 {
   7   int i;
   8
   9   for (i = 0; i < n; i += 3)
  10     a[i] = i;
  11 }
  12
  13 /* We used to replace the exit test "i < n" by "i != ((n-1)/3) * 3 + 1".  Although
  14    correct, this transformation is obviously harmful.  */
  15
  16 /* { dg-final { scan-tree-dump-times "/" 0 "optimized" } } */