31a3cfbc10
BUG=v8:8801 Change-Id: I9d9d9824c6c9ad0176bbfd3723da1b578b17c256 Reviewed-on: https://chromium-review.googlesource.com/c/1495555 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#60001}
43 lines
831 B
JavaScript
43 lines
831 B
JavaScript
// Copyright 2015 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 f = (function() {
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"use asm";
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function f(x, y) {
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return x << y;
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}
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return f;
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})();
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var counter = 0;
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var deopt = { toString : function() {
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%DeoptimizeFunction(f);
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counter++;
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return "2";
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} };
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var o = { toString : function() {
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counter++;
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return "1";
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} };
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%PrepareFunctionForOptimization(f);
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counter = 0;
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assertEquals(4, f(deopt, o));
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assertEquals(2, counter);
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%OptimizeFunctionOnNextCall(f);
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counter = 0;
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assertEquals(4, f(o, deopt));
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assertEquals(2, counter);
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%PrepareFunctionForOptimization(f);
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%OptimizeFunctionOnNextCall(f);
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counter = 0;
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assertEquals(8, f(deopt, deopt));
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assertEquals(2, counter);
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