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>
22 lines
620 B
JavaScript
22 lines
620 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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// Call RegExp constructor with a cons string.
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var cons_string = %ConstructConsString("", "aaaaaaaaaaaaaa");
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new RegExp(cons_string);
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// Same thing but using TF lowering.
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function make_cons_string(s) {
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return s + 'aaaaaaaaaaaaaa';
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};
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%PrepareFunctionForOptimization(make_cons_string);
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make_cons_string('');
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%OptimizeFunctionOnNextCall(make_cons_string);
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var cons_str = make_cons_string("");
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new RegExp(cons_str);
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