v8/test/mjsunit/array-shift4.js
Camillo Bruni e3e8ea5d65 [flags] Rename --opt to --turbofan
To be consistent with the all the other tiers and avoid confusion, we
rename --opt to ---turbofan, and --always-opt to --always-turbofan.

Change-Id: Ie23dc8282b3fb4cf2fbf73b6c3d5264de5d09718
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3610431
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80336}
2022-05-03 12:10:30 +00:00

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628 B
JavaScript

// Copyright 2014 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 --turbofan
// Inlining shift with holey smi arrays shouldn't deopt just because it
// encounters the hole on the copy step.
function doShift(a) {
var x = a.shift();
return x;
}
function makeArray() {
var a = [1, 2,, 3];
a[0] = 2;
return a;
}
%PrepareFunctionForOptimization(doShift);
doShift(makeArray());
doShift(makeArray());
%OptimizeFunctionOnNextCall(doShift);
doShift(makeArray());
assertOptimized(doShift);