lmao oops look up the class of the receiver

Author: tekknolagi

zjit/src/codegen.rs

@@ -445,11 +445,14 @@ fn gen_lookup_method(
     method_id: ID,
     state: &FrameState,
 ) -> Option<lir::Opnd> {
+    asm_comment!(asm, "get the class of the receiver with rb_obj_class");
+    let class = asm.ccall(rb_obj_class as *const u8, vec![recv]);
     // TODO(max): Figure out if we need to do anything here to save state to CFP
     let method_opnd = Opnd::UImm(method_id.0.into());
+    asm_comment!(asm, "call rb_callable_method_entry");
     let result = asm.ccall(
         rb_callable_method_entry as *const u8,
-        vec![recv, method_opnd],
+        vec![class, method_opnd],
     );
     asm.test(result, result);
     asm.jz(Target::SideExit(state.clone()));