gcc/testsuite/gcc.dg/Wunreachable-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -Wunreachable-code" } */
   3
   4 extern void foo (void);
   5 extern void baz (void);
   6
   7 void bar (int i)
   8 {
   9   if (i < 2)
  10     {
  11       baz ();
  12       return;
  13     }
  14   else
  15     {
  16       if (i >= 4 && i <= 5)
  17         foo ();
  18       return;
  19     }
  20
  21   baz ();       /* { dg-warning "will never be executed" "" } */
  22   baz ();
  23   baz ();
  24 }