1/*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16// The following test case once exposed a bug: deopt does not restore vregs correctly in a loop when the number of 
17// declare args is greater than the number of actual args.
18
19// @ts-nocheck
20declare function print(arg:any):string;
21
22class C {
23    x:number = 1;
24    y:number;
25    z:number;
26
27    set(x: C, y?:number, z?: number, w?: number) {
28        this.x = x.x;  // occur deopt
29        print(x);
30    }
31}
32
33let c1 = new C();
34C.prototype.bar = 1;
35let c2 = new C();
36c2.set(c1);
37