Do not ICE on an invalid input for MV.

2017-03-14  Martin Liska  <mliska@suse.cz>

	* multiple_target.c (expand_target_clones): Bail out for
	an invalid attribute.

From-SVN: r246124

gcc/ChangeLog

+2017-03-14  Martin Liska  <mliska@suse.cz>
+
+	* multiple_target.c (expand_target_clones): Bail out for
+	an invalid attribute.
+
 2017-03-14  Richard Biener  <rguenther@suse.de>
 
 	* alias.c (struct alias_set_entry): Pack properly.

gcc/multiple_target.c

@@ -303,10 +303,7 @@ expand_target_clones (struct cgraph_node *node, bool definition)
       if (!targetm.target_option.valid_attribute_p (new_node->decl, NULL,
 						    TREE_VALUE (attributes),
 						    0))
-	{
-	  input_location = saved_loc;
-	  continue;
-	}
+	return false;
 
       input_location = saved_loc;
       decl2_v = new_node->function_version ();