gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-pre-stats" } */
   3 int main(void)
   4 {
   5         int x, c, y;
   6         x = 3;
   7         if (c)
   8                 x = 2;
   9         y = x + 1;
  10         return y;
  11 }
  12 /* We should eliminate the x+1 computation from this routine, replacing
  13    it with a phi of 3, 4 */
  14 /* { dg-final { scan-tree-dump-times "Eliminated: 1" 1 "pre"} } */
  15 /* { dg-final { cleanup-tree-dump "pre" } } */