1 files changed, 7 insertions, 0 deletions
diff --git a/gc.c b/gc.c
index 05d75e16e2..9b453cb6ed 100644
--- a/gc.c
+++ b/gc.c
@@ -2374,6 +2374,13 @@ rb_imemo_new_debug(enum imemo_type type, VALUE v1, VALUE v2, VALUE v3, VALUE v0,
 #endif
 
 VALUE
+rb_class_allocate_instance(VALUE klass)
+{
+    VALUE flags = T_OBJECT | ROBJECT_EMBED;
+    return newobj_of(klass, flags, Qundef, Qundef, Qundef, RGENGC_WB_PROTECTED_OBJECT);
+}
+
+VALUE
 rb_data_object_wrap(VALUE klass, void *datap, RUBY_DATA_FUNC dmark, RUBY_DATA_FUNC dfree)
 {
     RUBY_ASSERT_ALWAYS(dfree != (RUBY_DATA_FUNC)1);