e31f0a7d25
PR-URL: https://github.com/nodejs/node/pull/28918 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
43 lines
826 B
JavaScript
43 lines
826 B
JavaScript
// Copyright 2017 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 array = [[{}], [1.1]];
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function transition() {
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for (var i = 0; i < array.length; i++) {
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var arr = array[i];
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arr[0] = {};
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}
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}
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var double_arr2 = [1.1, 2.2];
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var flag = 0;
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function swap() {
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try {
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} catch (e) {
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} // Prevent Crankshaft from inlining this.
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if (flag == 1) {
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array[1] = double_arr2;
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}
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}
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var expected = 6.176516726456e-312;
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function f() {
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swap();
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double_arr2[0] = 1;
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transition();
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double_arr2[1] = expected;
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};
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%PrepareFunctionForOptimization(f);
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for (var i = 0; i < 3; i++) {
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f();
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}
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%OptimizeFunctionOnNextCall(f);
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flag = 1;
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f();
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assertEquals(expected, double_arr2[1]);
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