v8/tools/clusterfuzz/foozzie/v8_mock_archs.js
Michael Achenbach 6546fcf180 [foozzie] Always include all typed-array mocks
Due to https://crbug.com/1195263, large typed arrays can have an
observable difference on the same architecture, depending on
optimization behavior.

For differential fuzzing comparisons, we previously used a proxy
for typed arrays that capped the maximum size only when comparing
different architectures - there an observable difference is WAI.

We move the capping code and make it arch-independent for now until
the bug above gets fixed, since it caused too many duplicates, which
degrade fuzzing performance.

Bug: chromium:1195263
Change-Id: Ic81c383e547413378cbe037de3c38eb900a9e5dc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3866173
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82860}
2022-08-31 10:48:29 +00:00

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JavaScript

// Copyright 2017 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.
// This is intended for permanent JS behavior changes for mocking out
// non-deterministic behavior. For temporary suppressions, please refer to
// v8_suppressions.js.
// This mocks only architecture specific differences. Refer to v8_mocks.js
// for the general case.
// This file is loaded before each correctness test cases and won't get
// minimized.