989a90400d
Bug: v8:10582, v8:9684 Change-Id: Ib29e9b56d4c722cb572e86def7eeb3f588dc9c2d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2316079 Reviewed-by: Georg Neis <neis@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#69128}
44 lines
975 B
JavaScript
44 lines
975 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 --noalways-opt
|
|
|
|
function foo() {
|
|
function g(o) {
|
|
return o.f;
|
|
}
|
|
return g;
|
|
}
|
|
|
|
let g1 = foo();
|
|
let g2 = foo();
|
|
%PrepareFunctionForOptimization(g1);
|
|
|
|
g1({ f : 1});
|
|
g1({ f : 2});
|
|
g2({ f : 2});
|
|
g2({ f : 2});
|
|
|
|
%OptimizeFunctionOnNextCall(g1);
|
|
g1({ f : 1});
|
|
|
|
%PrepareFunctionForOptimization(g2);
|
|
%OptimizeFunctionOnNextCall(g2);
|
|
g2({ f : 2});
|
|
g1({});
|
|
if (%DynamicMapChecksEnabled()) {
|
|
// One more call to ensure a deopt even if dynamic map checks is enabled.
|
|
g1({});
|
|
}
|
|
|
|
assertUnoptimized(g1);
|
|
|
|
// Deoptimization of g1 should also deoptimize g2 because they should share
|
|
// the optimized code object. (Unfortunately, this test bakes in various
|
|
// other assumptions about dealing with optimized code, and thus might break
|
|
// in future.)
|
|
assertUnoptimized(g2);
|
|
|
|
g2({});
|