gcc/testsuite/gcc.dg/tree-ssa/loop-34.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-lim-details" } */
   3
   4 int r[6];
   5
   6 void f (int n)
   7 {
   8   while (-- n)
   9     {
  10       r [0] += r [5];
  11       r [1] += r [0];
  12       r [2] += r [1];
  13       r [3] += r [2];
  14       r [4] += r [3];
  15       r [5] += r [4];
  16     }
  17 }
  18
  19
  20 /* { dg-final { scan-tree-dump-times "Executing store motion of r" 6 "lim" } } */
  21 /* { dg-final { cleanup-tree-dump "lim" } } */