a0206daa78
This flag has had no effect since mid 2017 when its use-site was accidentally removed (in https://codereview.chromium.org/2902533003). Change-Id: I81436b064c2664deff781ad6d75ad47937e3fdc0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1934333 Auto-Submit: Georg Neis <neis@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Commit-Queue: Michael Stanton <mvstanton@chromium.org> Cr-Commit-Position: refs/heads/master@{#65172}
63 lines
2.4 KiB
JavaScript
63 lines
2.4 KiB
JavaScript
// Copyright 2012 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --allow-natives-syntax
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var forceDeopt = {x: 0};
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var objectWithGetterProperty = function(value) {
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var obj = {};
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Object.defineProperty(obj, 'getterProperty', {
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get: function foo() {
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forceDeopt.x;
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return value;
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}
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});
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return obj;
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}('bad');
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function test() {
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var iAmContextAllocated = "good";
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objectWithGetterProperty.getterProperty;
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return iAmContextAllocated;
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// Make sure that the local variable is context allocated.
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function unused() {
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iAmContextAllocated;
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}
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};
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%PrepareFunctionForOptimization(test);
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assertEquals("good", test());
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assertEquals("good", test());
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%OptimizeFunctionOnNextCall(test);
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assertEquals("good", test());
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// At this point, foo should have been inlined into test. Let's deopt...
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delete forceDeopt.x;
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assertEquals("good", test());
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