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89577b6f78
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Shu-yu Guo 89577b6f78 Revert "Reland "[heap] Remove sweeping state in incremental marking"" 
This reverts commit c25352f388.

Reason for revert: Causing raytrace timeouts on TSAN:

https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20concurrent%20marking/13089
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20concurrent%20marking/13090
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20concurrent%20marking/13091

Original change's description:
> Reland "[heap] Remove sweeping state in incremental marking"
> 
> This is a reland of 7f29c48ef6
> 
> After fixing TSAN failures in https://crrev.com/c/2192661 and https://crrev.com/c/2193712, this CL and be relanded without changes.
> 
> Original change's description:
> > [heap] Remove sweeping state in incremental marking
> >
> > Remove the SWEEPING state from incremental marking. Sweeping is now
> > always completed when starting incremental marking. Before this change
> > there needed to be a safepoint each for starting marking and completing
> > sweeping. Now both happens within a single safepoint.
> >
> > Bug: v8:10315
> > Change-Id: Iad2835554865f2de24376372affe9a98992d1fa0
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2190419
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#67678}
> 
> Bug: v8:10315
> Change-Id: Ic949d125e72c4d17fd427d08d4b6f9056721eee9
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2196182
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#67741}

TBR=ulan@chromium.org,dinfuehr@chromium.org

Change-Id: Ie529fd3bef13a28301f22876758d731e466d3939
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10315
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2197457
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67761}
2020-05-12 21:21:47 +00:00
build_overrides tracing: Enable using Perfetto client library from Chromium 2020-05-11 11:17:57 +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 tracing: Enable using Perfetto client library from Chromium 2020-05-11 11:17:57 +00:00
include heap,cppgc: Update StackState enum values 2020-05-12 12:07:27 +00:00
infra [infra] Add stress_snapshot variant to fyi bots 2020-05-06 07:34:09 +00:00
samples [api] Create v8::String::NewFromLiteral that returns Local<String> 2020-03-09 12:02:07 +00:00
src Revert "Reland "[heap] Remove sweeping state in incremental marking"" 2020-05-12 21:21:47 +00:00
test Revert "Reland "[heap] Remove sweeping state in incremental marking"" 2020-05-12 21:21:47 +00:00
testing Roll v8/third_party/googletest/src/ 10b1902d8..e3f0319d8 (43 commits) 2020-04-15 07:23:10 +00:00
third_party [torque] format namespaces without indentation 2020-05-12 14:06:17 +00:00
tools Revert "Whitespace change to trigger bots" 2020-05-12 17:11:07 +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 Add third_party/jsoncpp/source to .gitignore 2020-04-29 07:20:41 +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 Fix undefined behavior due to memcpy-ing bool var 2020-04-27 09:47:43 +00:00
BUILD.gn heap,cppgc: Update StackState enum values 2020-05-12 12:07:27 +00:00
CODE_OF_CONDUCT.md Explicitly state that the Chromium Code of Conduct also applies to V8 2016-03-02 09:51:24 +00:00
codereview.settings Make Gerrit the default code review for V8 2017-06-30 17:37:37 +00:00
COMMON_OWNERS heap: Add Oilpan folks to COMMON_OWNERS 2020-04-14 08:55:52 +00:00
DEPS Update V8 DEPS. 2020-05-12 03:48:54 +00:00
ENG_REVIEW_OWNERS Add eng review owners as escalation path 2019-05-15 19:12:10 +00:00
INFRA_OWNERS Remove myself from owners 2019-12-12 14:22:32 +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 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.v8 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.valgrind Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
MIPS_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
OWNERS Add syg@chromium.org as DEPS owner for test262 rolls 2019-09-17 19:29:11 +00:00
PPC_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
PRESUBMIT.py Remove the #undef check from the Presubmit for .cc files 2020-01-24 15:24:51 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
S390_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
WATCHLISTS Stop watching for API changes in WATCHLISTS 2020-04-08 07:06:45 +00:00

README.md

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.