45b4522e40
This is in preparation to the removal of the FullCodeGenerator, we no longer need the ability to stress the underlying implementation. R=rmcilroy@chromium.org BUG=v8:6409 Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng Change-Id: Iad3177d6de4a68b57c12a770b6e85ed7a9710254 Reviewed-on: https://chromium-review.googlesource.com/584747 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#47276}
43 lines
1.2 KiB
JavaScript
43 lines
1.2 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 --opt --no-always-opt
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var v = 0;
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// Test that elements setters/getters on prototype chain set after the fact are
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// property detected and don't lead to overzealous optimization.
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var my_array_proto = {};
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my_array_proto.__proto__ = [].__proto__;
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function push_wrapper_2(array, value) {
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array.push(value);
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}
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array = [];
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array.__proto__ = my_array_proto;
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push_wrapper_2(array, 66);
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assertEquals(1, array.length);
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assertEquals(0, v);
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assertEquals(66, array[0]);
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push_wrapper_2(array, 77);
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assertEquals(2, array.length);
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assertEquals(0, v);
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assertEquals(77, array[1]);
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%OptimizeFunctionOnNextCall(push_wrapper_2);
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push_wrapper_2(array, 88);
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assertEquals(3, array.length);
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assertEquals(0, v);
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assertEquals(88, array[2]);
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assertOptimized(push_wrapper_2);
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// Defining accessor should deopt optimized push.
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Object.defineProperty(my_array_proto, "3", {
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get: function() { return "get " + v; },
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set: function(value) { v += value; }
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});
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assertUnoptimized(push_wrapper_2);
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push_wrapper_2(array, 99);
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assertEquals(4, array.length);
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assertEquals(99, v);
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assertEquals("get 99", array[3]);
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