gcc/testsuite/gcc.dg/tree-ssa/phi-opt-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-optimized" } */
   3
   4 int f(int a, int b)
   5 {
   6   if (a == 0)
   7    return 0;
   8   if (a != b)
   9    return a;
  10  return a;
  11 }
  12
  13 /* There should be no ifs as the PHI arguments, we did not
  14    optimize this before because PHI-OPT did not look at
  15    PHIs which have more than two arguments.  */
  16 /* { dg-final { scan-tree-dump-times "if" 0 "optimized"} } */
  17 /* { dg-final { cleanup-tree-dump "optimized" } } */