v8/test/mjsunit/deopt-unlinked.js
Jaroslav Sevcik a7e5504d83 [cleanup] Stop using the now-unused deopt_count from feedback vector.
Unfortunately, we still have to keep the field because GC mole and Torque
do not support platform specific padding well
(see http://crbug.com/v8/9287).

Bug: v8:9183
Change-Id: I2210be4b8174c97bc82145605f9b862aac3bdc37
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624791
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61802}
2019-05-23 16:34:54 +00:00

27 lines
632 B
JavaScript

// Copyright 2017 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
// The deopt count is stored in the feedback vector which gets cleared when
// bytecode is flushed, which --gc-interval can cause in stress modes.
// Flags: --noflush-bytecode --nostress-flush-bytecode
function foo() {}
foo();
foo();
%OptimizeFunctionOnNextCall(foo);
foo();
assertOptimized(foo);
// Unlink the function.
%DeoptimizeFunction(foo);
assertUnoptimized(foo);
foo();
assertUnoptimized(foo);