Fix logic on when to generate a new handler label

From-SVN: r19868

gcc/ChangeLog

+Tue May 19 11:51:00 EDT 1998  Andrew MacLeod  (amacleod@cygnus.com)
+
+	* except.c (expand_start_catch): Correct logic for when to
+	generate a new handler label, and when to use the old one.
+
 Tue May 19 11:08:52 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* Makefile.in (print-rtl.o): Depend on bitmap.h.

gcc/except.c

@@ -1491,7 +1491,7 @@ expand_start_catch (rtime)
   int eh_region_entry = find_func_region (insn_region_num);
 
   /* If we've already issued this label, pick a new one */
-  if (catchstack.top->entry->label_used == 0)
+  if (catchstack.top->entry->label_used)
     handler_label = gen_exception_label ();
   else
     catchstack.top->entry->label_used = 1;