gcc/testsuite/gcc.dg/builtin-unreachable-5.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-fab1" } */
   3
   4 int
   5 foo (int a)
   6 {
   7   if (a <= 0)
   8     {
   9     L1:
  10       __builtin_unreachable ();
  11     }
  12
  13   if (a > 2)
  14     goto L1;
  15
  16   return a > 0;
  17 }
  18
  19 /* { dg-final { scan-tree-dump-times "if \\(" 0 "fab1" } } */
  20 /* { dg-final { scan-tree-dump-times "goto" 0 "fab1" } } */
  21 /* { dg-final { scan-tree-dump-times "L1:" 0 "fab1" } } */
  22 /* { dg-final { scan-tree-dump-times "__builtin_unreachable" 0 "fab1" } } */
  23 /* { dg-final { cleanup-tree-dump "fab1" } } */