09a8440b45
PR-URL: https://github.com/nodejs/node/pull/51362 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
40 lines
873 B
JavaScript
40 lines
873 B
JavaScript
// Copyright 2023 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 escape(s) { }
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function f(i) {
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let str = "";
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escape(str);
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// This "if (i == 3)" should not be merged into the subsequent switch, because
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// there is a side-effect in between.
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if (i == 3) {
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// This will trigger a deopt
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str += "("
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}
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str += "function";
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switch (i) {
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case -10:
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escape(str);
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case 1:
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case 3:
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}
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// This `eval` creates some kind of closure of the function inside the
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// function, not sure how that works exactly, but it's needed to repro :D
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eval();
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return str;
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}
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%PrepareFunctionForOptimization(f);
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assertEquals(f(0), "function");
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%OptimizeFunctionOnNextCall(f);
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assertEquals(f(3), "(function");
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