v8/test/mjsunit/regress/regress-v8-12632.js
jameslahm e66a1116fb [compiler] Fix RepresentationChangerError in Array.p.shift
In JSCallReducer::ReduceArrayPrototypeShift, add Unsigned32
TypeGuard for index Node used in fast path, avoid representing
kRepFloat64 (Range(1, inf)) to kRepWord64 when converting
input for kLoadElement.

Bug: v8:12632
Change-Id: I2e4b00840dc5462e4351e13a372c33b6272b9ea1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3528373
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79514}
2022-03-17 12:16:06 +00:00

18 lines
412 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 --interrupt-budget=1024 --noturbo-loop-variable
function opt() {
const array = [-1, 1];
array.shift();
}
%PrepareFunctionForOptimization(opt);
opt();
opt();
%OptimizeFunctionOnNextCall(opt);
opt();
opt();