YJIT: Implement specialized respond_to? (#6363)

* Add rb_callable_method_entry_or_negative

* YJIT: Implement specialized respond_to?

This implements a specialized respond_to? in YJIT.

* Update yjit/src/codegen.rs

Co-authored-by: Maxime Chevalier-Boisvert <maximechevalierb@gmail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/yjit.c b/yjit.c
index facddcca0a..afa329e024 100644
--- a/yjit.c
+++ b/yjit.c
@@ -486,7 +486,11 @@ rb_METHOD_ENTRY_VISI(const rb_callable_method_entry_t *me)
 rb_method_type_t
 rb_get_cme_def_type(const rb_callable_method_entry_t *cme)
 {
-    return cme->def->type;
+    if (UNDEFINED_METHOD_ENTRY_P(cme)) {
+        return VM_METHOD_TYPE_UNDEF;
+    } else {
+        return cme->def->type;
+    }
 }
 
 ID