gcc/testsuite/gcc.dg/tree-ssa/20031216-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-optimized" } */
   3
   4 extern void link_error (void);
   5
   6 void
   7 foo (int b)
   8 {
   9   int a;
  10   a = b + 2;
  11   a--;
  12   a--;
  13   if (a != b)
  14     link_error ();
  15 }
  16
  17 /* The comparison should be eliminated, there should be no reference
  18    to link_error.  */
  19 /* { dg-final { scan-tree-dump-times "link_error" 0 "optimized"} } */