gcc/testsuite/c-c++-common/Wimplicit-fallthrough-12.c

   1 /* PR c/7652 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wimplicit-fallthrough -O2" } */
   4
   5 /* Don't let optimizations preclude the warning.  */
   6
   7 extern void bar (int);
   8
   9 void
  10 f (int i)
  11 {
  12   switch (i)
  13     {
  14     case 1:
  15       if (i > 1)
  16         bar (1);
  17       else
  18         goto D;
  19       break;
  20     case 2:
  21       bar (2); /* { dg-warning "statement may fall through" } */
  22     D:
  23     default:
  24       bar (33);
  25     }
  26 }