Fix PR 66301 - check for dump_file in eliminate_dom_walker::before_dom_children

2015-06-26  Martin Jambor  <mjambor@suse.cz>

	PR debug/66301
	* tree-ssa-pre.c (before_dom_children): Check that dump_file is not
	NULL instead of calling dump_enabled_p.

From-SVN: r225019

gcc/ChangeLog

+2015-06-26  Martin Jambor  <mjambor@suse.cz>
+
+	PR debug/66301
+	* tree-ssa-pre.c (before_dom_children): Check that dump_file is not
+	NULL instead of calling dump_enabled_p.
+
 2015-06-26  James Greenhalgh  <james.greenhalgh@arm.com>
 
 	* config/aarch64/aarch64.opt: (override): New.

gcc/tree-ssa-pre.c

@@ -4366,7 +4366,7 @@ eliminate_dom_walker::before_dom_children (basic_block b)
 						       (OBJ_TYPE_REF_TOKEN (fn)),
 						     context,
 						     &final);
-	      if (dump_enabled_p ())
+	      if (dump_file)
 		dump_possible_polymorphic_call_targets (dump_file, 
 							obj_type_ref_class (fn),
 							tree_to_uhwi