nodejs/deps/v8/test/mjsunit/maglev/lazy-deopt-with-onstack-activation.js
Michaël Zasso 918fe04351
deps: update V8 to 13.6.233.8
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>
2025-05-02 15:06:53 +02:00

35 lines
679 B
JavaScript

// Copyright 2022 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --maglev --no-always-turbofan
var x = 1;
var do_change = {};
do_change = false;
function g() {
if (do_change) {
x = 2;
return 40;
}
return 30;
}
function f() {
return g() + x;
}
%PrepareFunctionForOptimization(f);
assertEquals(31, f());
%OptimizeMaglevOnNextCall(f);
assertEquals(31, f());
assertTrue(isMaglevved(f));
// Trigger a lazy deopt on the next g() call.
do_change = true;
assertEquals(42, f());
assertFalse(isMaglevved(f));
assertUnoptimized(f);