ipa-icf-gimple.c (func_checker::compare_operand): Compare only empty constructors.

	* ipa-icf-gimple.c (func_checker::compare_operand): Compare only
	empty constructors.

From-SVN: r228860

gcc/ChangeLog

+2015-10-11  Jan Hubicka  <hubicka@ucw.cz>
+
+	* ipa-icf-gimple.c (func_checker::compare_operand): Compare only
+	empty constructors.
+
 2015-10-16  Michael Collison  <michael.collison@linaro.org>
 	    Andrew Pinski <andrew.pinski@caviumnetworks.com>
 

gcc/ipa-icf-gimple.c

@@ -415,20 +415,9 @@ func_checker::compare_operand (tree t1, tree t2)
   switch (TREE_CODE (t1))
     {
     case CONSTRUCTOR:
-      {
-	unsigned length1 = vec_safe_length (CONSTRUCTOR_ELTS (t1));
-	unsigned length2 = vec_safe_length (CONSTRUCTOR_ELTS (t2));
-
-	if (length1 != length2)
-	  return return_false ();
-
-	for (unsigned i = 0; i < length1; i++)
-	  if (!compare_operand (CONSTRUCTOR_ELT (t1, i)->value,
-				CONSTRUCTOR_ELT (t2, i)->value))
-	    return return_false();
-
-	return true;
-      }
+      gcc_assert (!vec_safe_length (CONSTRUCTOR_ELTS (t1))
+		  && !vec_safe_length (CONSTRUCTOR_ELTS (t2)));
+      return true;
     case ARRAY_REF:
     case ARRAY_RANGE_REF:
       /* First argument is the array, second is the index.  */