gcc/testsuite/gcc.c-torture/compile/volatile-1.c

   1 /* The problem here was that the statements that
   2    loaded from exception.reason where not being
   3    marked as having volatile behaviour which
   4    caused load PRE on the tree level to go
   5    into an infinite loop. */
   6
   7 struct gdb_exception
   8 {
   9   int reason;
  10 };
  11 int catch_exceptions_with_msg (int *gdberrmsg)
  12 {
  13   volatile struct gdb_exception exception;
  14   exceptions_state_mc_init (&(exception));
  15   if (exception.reason != 0)
  16     foo ();
  17   return exception.reason;
  18 }