| // Copyright 2020 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 --turboprop-dynamic-map-checks --opt --no-always-opt |
| |
| function bar(obj) { |
| // Add two dummy loads to make sure obj.b is in the same slot index as obj.a |
| // in foo. |
| obj.y; |
| obj.x; |
| return obj.b |
| } |
| |
| function foo(obj) { |
| bar(obj); |
| return obj.a; |
| } |
| |
| var obj = { a: 10, b: 20}; |
| %PrepareFunctionForOptimization(foo); |
| %EnsureFeedbackVectorForFunction(bar); |
| foo(obj); |
| %OptimizeFunctionOnNextCall(foo); |
| assertEquals(10, foo(obj)); |
