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e16e611089
Pick up the latest set of patch level updates from the V8 5.0 branch. https://github.com/v8/v8/compare/5.0.71.35...5.0.71.47 PR-URL: https://github.com/nodejs/node/pull/6572 Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: JungMinu - Minwoo Jung <jmwsoft@gmail.com>
83 lines
1.8 KiB
JavaScript
83 lines
1.8 KiB
JavaScript
// Copyright 2016 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
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var global = {}
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var fish = [
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{'name': 'foo'},
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{'name': 'bar'},
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];
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for (var i = 0; i < fish.length; i++) {
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global[fish[i].name] = 1;
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}
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function load() {
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var sum = 0;
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for (var i = 0; i < fish.length; i++) {
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var name = fish[i].name;
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sum += global[name];
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}
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return sum;
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}
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load();
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load();
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%OptimizeFunctionOnNextCall(load);
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load();
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assertOptimized(load);
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function store() {
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for (var i = 0; i < fish.length; i++) {
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var name = fish[i].name;
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global[name] = 1;
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}
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}
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store();
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store();
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%OptimizeFunctionOnNextCall(store);
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store();
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assertOptimized(store);
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// Regression test for KeyedStoreIC bug: would use PROPERTY mode erroneously.
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function store_element(obj, key) {
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obj[key] = 0;
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}
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var o1 = new Array(3);
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var o2 = new Array(3);
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o2.o2 = "o2";
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var o3 = new Array(3);
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o3.o3 = "o3";
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var o4 = new Array(3);
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o4.o4 = "o4";
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var o5 = new Array(3);
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o5.o5 = "o5";
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// Make the KeyedStoreIC megamorphic.
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store_element(o1, 0); // Premonomorphic
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store_element(o1, 0); // Monomorphic
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store_element(o2, 0); // 2-way polymorphic.
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store_element(o3, 0); // 3-way polymorphic.
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store_element(o4, 0); // 4-way polymorphic.
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store_element(o5, 0); // Megamorphic.
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function inferrable_store(key) {
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store_element(o5, key);
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}
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inferrable_store(0);
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inferrable_store(0);
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%OptimizeFunctionOnNextCall(inferrable_store);
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inferrable_store(0);
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assertOptimized(inferrable_store);
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// If |inferrable_store| emitted a generic keyed store, it won't deopt upon
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// seeing a property name key. It should have inferred a receiver map and
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// emitted an elements store, however.
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inferrable_store("deopt");
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assertUnoptimized(inferrable_store);
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