| // 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 --opt --no-always-opt |
| |
| function call(cb) { |
| return cb.call(this, 42); |
| } |
| |
| function bar() { |
| function foo(arg) { |
| %TurbofanStaticAssert(arg === 42); |
| return %IsBeingInterpreted(); |
| } |
| %PrepareFunctionForOptimization(foo); |
| |
| return call(foo); |
| } |
| |
| |
| %PrepareFunctionForOptimization(bar); |
| %PrepareFunctionForOptimization(call); |
| assertTrue(bar()); |
| assertTrue(bar()); |
| %OptimizeFunctionOnNextCall(bar); |
| assertFalse(bar()); |