re PR ipa/68311 (gcc/ipa-icf.c:3041: possible sequence point error ?)

Fix PR ipa/68311

	PR ipa/68311
	* ipa-icf.c (sem_item_optimizer::traverse_congruence_split):
	Replace ctor with auto_vec and initialization in a loop.

From-SVN: r230311

gcc/ChangeLog

+2015-11-13  Martin Liska  <mliska@suse.cz>
+
+	PR ipa/68311
+	* ipa-icf.c (sem_item_optimizer::traverse_congruence_split):
+	Replace ctor with auto_vec and initialization in a loop.
+
 2015-11-13  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/68306

gcc/ipa-icf.c

@@ -3046,7 +3046,9 @@ sem_item_optimizer::traverse_congruence_split (congruence_class * const &cls,
 
   if (popcount > 0 && popcount < cls->members.length ())
     {
-      congruence_class* newclasses[2] = { new congruence_class (class_id++), new congruence_class (class_id++) };
+      auto_vec <congruence_class *, 2> newclasses;
+      newclasses.quick_push (new congruence_class (class_id++));
+      newclasses.quick_push (new congruence_class (class_id++));
 
       for (unsigned int i = 0; i < cls->members.length (); i++)
 	{