gcc/testsuite/c-c++-common/pr68582.c

   1 /* PR middle-end/68582 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wunused-function" } */
   4
   5 /* We failed to give the warning for functions with TREE_THIS_VOLATILE set.  */
   6
   7 static void
   8 fn1 (void) /* { dg-warning "defined but not used" } */
   9 {
  10   __builtin_abort ();
  11 }
  12
  13 __attribute__ ((noreturn))
  14 static void
  15 fn2 (void) /* { dg-warning "defined but not used" } */
  16 {
  17   __builtin_abort ();
  18 }
  19
  20 __attribute__ ((volatile))
  21 static void
  22 fn3 (void) /* { dg-warning "defined but not used" } */
  23 {
  24   __builtin_abort ();
  25 }