node/deps/v8/test/mjsunit/const-tracking-let-invalidate-storelookupslot-maglev.js
Michaël Zasso cfbf9e0d14 deps: update V8 to 12.4.254.14
PR-URL: https://github.com/nodejs/node/pull/52465
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
2024-04-22 21:25:15 +00:00

34 lines
736 B
JavaScript

// Copyright 2024 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: --const-tracking-let --allow-natives-syntax
// Flags: --turbofan --no-always-turbofan --maglev --no-stress-maglev
// Flags: --sparkplug --no-always-sparkplug
let a = 0;
function read() {
return a;
}
%PrepareFunctionForOptimization(read);
read();
%OptimizeFunctionOnNextCall(read);
read();
assertOptimized(read);
// This will use the StoreLookupSlot bytecode.
function write(newA) {
eval();
a = newA;
}
%PrepareFunctionForOptimization(write);
write(0);
%OptimizeMaglevOnNextCall(write);
write(1);
assertUnoptimized(read);
assertEquals(1, read());