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2dcc3665ab
PR-URL: https://github.com/nodejs/node/pull/28016 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
39 lines
987 B
JavaScript
39 lines
987 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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function f1(a, i) {
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return a[i] + 0.5;
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}
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var arr = [,0.0,2.5];
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%PrepareFunctionForOptimization(f1);
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assertEquals(0.5, f1(arr, 1));
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assertEquals(0.5, f1(arr, 1));
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%OptimizeFunctionOnNextCall(f1);
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assertEquals(0.5, f1(arr, 1));
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// Trick crankshaft into accepting feedback with the array prototype
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// map even though a call on that map was never made. optopush should
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// refuse to inline the push call based on the danger that it's modifying
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// the array prototype.
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var push = Array.prototype.push;
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var array_prototype = Array.prototype;
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function optopush(a) {
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push.call(a, 1);
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}
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function foo() {
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optopush(array_prototype);
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}
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%PrepareFunctionForOptimization(foo);
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optopush([]);
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optopush([]);
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optopush([]);
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%OptimizeFunctionOnNextCall(foo);
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foo();
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assertEquals(1.5, f1(arr, 0));
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