Revert "Use a monotonically increasing number for object_id"

This reverts commit bd2b314a05ae9192b3143e1e678a37c370d8a9ce.

1 files changed, 2 insertions, 6 deletions

diff --git a/hash.c b/hash.c
index a5de9fde07..0f5d418534 100644
--- a/hash.c
+++ b/hash.c
@@ -273,14 +273,10 @@ rb_objid_hash(st_index_t index)
 static st_index_t
 objid_hash(VALUE obj)
 {
-    VALUE object_id = rb_obj_id(obj);
-    if (!FIXNUM_P(object_id))
-        object_id = rb_big_hash(object_id);
-
 #if SIZEOF_LONG == SIZEOF_VOIDP
-    return (st_index_t)st_index_hash((st_index_t)NUM2LONG(object_id));
+    return (st_index_t)st_index_hash((st_index_t)NUM2LONG(rb_obj_id(obj)));
 #elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
-    return (st_index_t)st_index_hash((st_index_t)NUM2LL(object_id));
+    return (st_index_t)st_index_hash((st_index_t)NUM2LL(rb_obj_id(obj)));
 #endif
 }