gcc/testsuite/gcc.dg/tree-ssa/pr22051-1.c

   1 /* { dg-do compile }  */
   2 /* { dg-options "-O2 -fdump-tree-optimized" }  */
   3
   4
   5 void *arf ();
   6 int
   7 foo()
   8 {
   9   void *p = arf ();
  10
  11   if ((void (*)(void))p != 0)
  12     return 1;
  13   else
  14     return 2;
  15 }
  16
  17 /* The cast to a function pointer type must remain after all optimizations
  18    are complete so that function pointer canonicalization works on those
  19    targets which require it.  */
  20 /* { dg-final { scan-tree-dump-times "= \\(void \\(\\*<.*>\\) \\(void\\)\\) p_" 1 "optimized" } } */
  21
  22