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

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-forwprop1" } */
   3
   4 /* We should be able to fold the comparison at least with the
   5    first forwprop pass, if not a ccp pass before.  */
   6
   7 extern void link_error (void);
   8 void foo()
   9 {
  10   int i;
  11   char *p = (char *)&i;
  12   long *q = (long *)p;
  13   if (q == 0)
  14     link_error ();
  15 }
  16
  17 /* { dg-final { scan-tree-dump-not "link_error" "forwprop1" } } */