| // Copyright 2016 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: --mark-shared-functions-for-tier-up --allow-natives-syntax --expose-gc |
| |
| function foo() { |
| function bar() { |
| } |
| return bar; |
| } |
| |
| // Mark bar's shared function info for tier-up |
| // (but don't optimize). |
| var bar = foo(); |
| %OptimizeFunctionOnNextCall(bar); |
| |
| // Avoid flushing foo (and thereby making bar's shared function info |
| // dead) by marking it to be optimized. |
| %OptimizeFunctionOnNextCall(foo); |
| |
| // Throw away the JSFunction we have for bar and GC until its code has |
| // been flushed. |
| bar = null; |
| for (var i = 0; i < 6; i++) { |
| gc(); |
| } |
| |
| // Now create a new JSFunction from bar's shared function info and call it, |
| // we should not optimize without recompiling the baseline code. |
| foo()(); |
