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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>
27 lines
734 B
JavaScript
27 lines
734 B
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 --turbo-escape
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function f(str) {
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var s = "We turn {" + str + "} into a ConsString now";
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return s.length;
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};
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%PrepareFunctionForOptimization(f);
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assertEquals(33, f('a'));
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assertEquals(33, f("b"));
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%OptimizeFunctionOnNextCall(f);
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assertEquals(33, f("c"));
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function g(str) {
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var s = "We also try to materalize {" + str + "} when deopting";
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%DeoptimizeNow();
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return s.length;
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};
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%PrepareFunctionForOptimization(g);
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assertEquals(43, g('a'));
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assertEquals(43, g("b"));
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%OptimizeFunctionOnNextCall(g);
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assertEquals(43, g("c"));
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