gcc/testsuite/gcc.dg/tree-ssa/phi-opt-9.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-optimized" } */
   3
   4 int g(int,int);
   5 int h(int);
   6 int f(int t, int c)
   7 {
   8   int d = 0;
   9   int e = 0;
  10   if (t)
  11     {
  12       d = h(c);
  13       e = t;
  14     }
  15   else d = 0, e = 0;
  16   return g(e,d);
  17 }
  18
  19 /* The value e should have been replaced with t and there should be only one PHI. */
  20 /* { dg-final { scan-tree-dump "g .t_\[0-9\]*.D.," "optimized" } } */
  21 /* { dg-final { scan-tree-dump-times "PHI" 1 "optimized" } } */