gcc/testsuite/gcc.dg/pr53887.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 enum
   5 { Failed, NoError, NoDiskette }
   6 a;
   7 int b, c;
   8 void
   9 fn1 ()
  10 {
  11     if (c)
  12         a << 1;
  13     switch (b)
  14     {
  15     default:
  16         a << 1;
  17     case 0:
  18         b = 0;
  19     case 1:
  20     case NoDiskette:
  21         ;
  22     }
  23 }
  24