From a01d22b8c16d9bd44767cced8d45398493af0a7c Mon Sep 17 00:00:00 2001
From: John Hawthorn <john@hawthorn.email>
Date: Wed, 11 Dec 2019 15:47:49 -0800
Subject: [PATCH] Check type with BUILTIN_TYPE in method cache clear

We know that this is a heap-allocated object (a CLASS, MODULE, or
ICLASS) so we don't need to check if it is an immediate value. This
should be very slightly faster.
---
 vm_method.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vm_method.c b/vm_method.c
index 90ed0ba5f7..2f1817a9ea 100644
--- a/vm_method.c
+++ b/vm_method.c
@@ -70,7 +70,7 @@ rb_class_clear_method_cache(VALUE klass, VALUE arg)
     mjit_remove_class_serial(RCLASS_SERIAL(klass));
     RCLASS_SERIAL(klass) = rb_next_class_serial();
 
-    if (RB_TYPE_P(klass, T_ICLASS)) {
+    if (BUILTIN_TYPE(klass) == T_ICLASS) {
 	struct rb_id_table *table = RCLASS_CALLABLE_M_TBL(klass);
 	if (table) {
 	    rb_id_table_clear(table);