ICF: Use bit or instead of if branch.

	* ipa-icf.c (sem_item_optimizer::merge_classes): Use bit or
	instead of if branch.

From-SVN: r221147

gcc/ChangeLog

 2015-03-03  Martin Liska  <mliska@suse.cz>
 
+	* ipa-icf.c (sem_item_optimizer::merge_classes): Use bit or
+	instead of if branch.
+
+2015-03-03  Martin Liska  <mliska@suse.cz>
+
 	PR ipa/65282
 	* ipa-icf.c (sem_variable::equals): Fix wrong condition.
 

gcc/ipa-icf.c

@@ -2976,8 +2976,7 @@ sem_item_optimizer::merge_classes (unsigned int prev_class_count)
 		alias->dump_to_file (dump_file);
 	      }
 
-	    if (source->merge (alias))
-	      merged_p = true;
+	    merged_p |= source->merge (alias);
 	  }
       }