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Zhi An Ng 4f38417d72 Revert "[wasm-simd][ia32] Optimize some signed integer widening sequences"
This reverts commit 0ef2eea74c.

Reason for revert: broke noavx https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20debug/34035/overview

Original change's description:
> [wasm-simd][ia32] Optimize some signed integer widening sequences
>
> Optimize ia32 code sequences. This is the same sequences as x64, which
> have been optimized based on supported extensions.
>
> Bug: v8:11464
> Change-Id: I10396a928a431cdd2de9b22bb8a395bc0adb4694
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704897
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72926}

Bug: v8:11464
Change-Id: Ibeaf35b5f6aa75d10e24f1fb57843dbc0791d37a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713208
Auto-Submit: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72929}
2021-02-22 21:14:37 +00:00
.github [github] Close PRs created on the V8 GitHub mirror automatically 2021-01-12 08:39:59 +00:00
build_overrides [build] Remove obsolete gn flag 2021-01-11 15:50:59 +00:00
custom_deps Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
docs Add OWNERS for docs/ 2019-05-15 12:06:15 +00:00
gni Add RISC-V backend 2021-02-09 17:06:36 +00:00
include [cppgc]: Fix build on msvc 2021-02-22 15:42:34 +00:00
infra [MB] Add a Mac-on_arm compile only trybot 2021-02-22 15:36:34 +00:00
samples cppgc: Avoid initializing cppgc platform through V8 2021-02-09 08:26:11 +00:00
src Revert "[wasm-simd][ia32] Optimize some signed integer widening sequences" 2021-02-22 21:14:37 +00:00
test [build] Move v8-platform.h into v8_config_headers 2021-02-22 14:34:50 +00:00
testing build: Remove no-op calls to set_sources_assignment_filter 2020-10-08 14:44:01 +00:00
third_party [csa][cleanup] Simplify StoreFixedArrayElement 2021-02-19 14:01:50 +00:00
tools [build] Improve build dependencies for gn check 2021-02-22 13:13:30 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.clang-tidy [tool] Remove unfixed clang-tidy warnings to ease use. 2018-10-26 07:40:32 +00:00
.editorconfig Add .editorconfig 2017-07-28 13:39:24 +00:00
.flake8 Add .flake8 to allow for python style checking. 2019-07-19 21:44:03 +00:00
.git-blame-ignore-revs [infra] Update .git-blame-ignore-revs 2020-03-03 12:59:13 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore [build] Remove legacy binutils 2021-01-08 12:33:31 +00:00
.gn [build] Dynamically decide if to use system xcode 2019-07-29 08:20:24 +00:00
.vpython [tools] Implement confidence-based number of runs 2019-05-09 09:42:28 +00:00
.ycm_extra_conf.py Fix ycm config for headers without source 2019-12-09 11:59:21 +00:00
AUTHORS [aarm64] Fix GetSharedLibraryAddresses 2021-02-22 09:10:20 +00:00
BUILD.gn [sparkplug] Extract assembler to baseline-assembler* 2021-02-22 18:11:29 +00:00
CODE_OF_CONDUCT.md
codereview.settings Make Gerrit the default code review for V8 2017-06-30 17:37:37 +00:00
COMMON_OWNERS Remove tebbi from OWNERS and TODOs 2021-01-21 13:23:00 +00:00
DEPS Update V8 DEPS. 2021-02-22 03:39:29 +00:00
DIR_METADATA Add DIR_METADATA files to v8. 2020-10-20 22:12:28 +00:00
ENG_REVIEW_OWNERS Add eng review owners as escalation path 2019-05-15 19:12:10 +00:00
INFRA_OWNERS Add team members as owners 2020-08-18 08:29:04 +00:00
INTL_OWNERS add ftang as owner 2020-04-24 19:19:36 +00:00
LICENSE [wasm] Draft version of C/C++ Wasm API 2019-04-17 16:00:26 +00:00
LICENSE.fdlibm Add LICENSE.fdlibm for all the fdlibm imported sources. 2016-06-09 07:17:03 +00:00
LICENSE.strongtalk
LICENSE.v8
MIPS_OWNERS [mips] Request to be an owner of MIPS files 2020-11-23 09:43:49 +00:00
OWNERS Add RISC-V backend 2021-02-09 17:06:36 +00:00
PPC_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
PRESUBMIT.py cppgc: Add testing API structure 2021-02-03 16:00:37 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
RISCV_OWNERS Add RISC-V backend 2021-02-09 17:06:36 +00:00
S390_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
WATCHLISTS Add a watchlist for ieee754.(cc|h) changes. 2021-01-11 18:10:19 +00:00

V8 JavaScript Engine

V8 is Google's open source JavaScript engine.

V8 implements ECMAScript as specified in ECMA-262.

V8 is written in C++ and is used in Google Chrome, the open source browser from Google.

V8 can run standalone, or can be embedded into any C++ application.

V8 Project page: https://v8.dev/docs

Getting the Code

Checkout depot tools, and run

    fetch v8

This will checkout V8 into the directory v8 and fetch all of its dependencies. To stay up to date, run

    git pull origin
    gclient sync

For fetching all branches, add the following into your remote configuration in .git/config:

    fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
    fetch = +refs/tags/*:refs/tags/*

Contributing

Please follow the instructions mentioned at v8.dev/docs/contribute.