918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
37 lines
887 B
JavaScript
37 lines
887 B
JavaScript
// Copyright 2024 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 --turbolev --turbofan
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// Flags: --no-always-turbofan
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function throw_if_true(b) {
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if (b) { throw "a" }
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return 17;
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}
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function f(b) {
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try {
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return throw_if_true(b);
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} catch (e) {
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return 42;
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}
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}
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%PrepareFunctionForOptimization(f);
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assertEquals(17, f(false));
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assertEquals(17, f(false));
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%OptimizeFunctionOnNextCall(f);
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assertEquals(17, f(false));
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assertOptimized(f);
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// Triggering an exception for the 1st time will cause a lazy deopt.
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assertEquals(42, f(true));
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assertUnoptimized(f);
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// When reoptimizing, subsequent exceptions should not deopt the function.
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%OptimizeFunctionOnNextCall(f);
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assertEquals(17, f(false));
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assertEquals(42, f(true));
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assertOptimized(f);
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