2669224274
R=yangguo@chromium.org Review URL: https://codereview.chromium.org/1773593002 Cr-Commit-Position: refs/heads/master@{#34572}
67 lines
1.3 KiB
JavaScript
67 lines
1.3 KiB
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --block-concurrent-recompilation
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// Flags: --expose-gc
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function Ctor() {
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this.a = 1;
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}
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function get_closure() {
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return function add_field(obj) {
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obj.c = 3;
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obj.a = obj.a + obj.c;
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return obj.a;
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}
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}
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function get_closure2() {
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return function cc(obj) {
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obj.c = 3;
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obj.a = obj.a + obj.c;
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}
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}
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function dummy() {
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(function () {
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var o = {c: 10};
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var f1 = get_closure2();
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f1(o);
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f1(o);
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%OptimizeFunctionOnNextCall(f1);
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f1(o);
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})();
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}
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var o = new Ctor();
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function opt() {
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(function () {
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var f1 = get_closure();
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f1(new Ctor());
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f1(new Ctor());
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%OptimizeFunctionOnNextCall(f1);
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f1(o);
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})();
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}
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// Optimize add_field and install its code in optimized code cache.
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opt();
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opt();
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opt();
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// Optimize dummy function to remove the add_field from head of optimized
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// function list in the context.
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dummy();
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dummy();
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// Kill add_field in new space GC.
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for(var i = 0; i < 3; i++) gc(true);
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// Trigger deopt.
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o.c = 2.2;
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// Fetch optimized code of add_field from cache and crash.
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var f2 = get_closure();
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f2(new Ctor());
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