| // Copyright 2019 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --allow-natives-syntax |
| |
| function bar(a) { |
| return Object.defineProperty(a, 'x', {get() { return 1; }}); |
| } |
| |
| function foo() { |
| return {}; |
| } |
| |
| %NeverOptimizeFunction(bar); |
| %PrepareFunctionForOptimization(foo); |
| const o = foo(); // Keep a reference so the GC doesn't kill the map. |
| bar(o); |
| const a = bar(foo()); |
| %OptimizeFunctionOnNextCall(foo); |
| const b = bar(foo()); |
| |
| assertTrue(%HaveSameMap(a, b)); |
