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Sigurd Schneider 21a471f2d8 Revert "Reland "[regalloc] Introduce deferred fixed ranges""
This reverts commit 1ca088652d.

Reason for revert: Regressions across the board

Original change's description:
> Reland "[regalloc] Introduce deferred fixed ranges"
> 
> This is a reland of b176931311
> 
> Original change's description:
> > [regalloc] Introduce deferred fixed ranges
> > 
> > Fixed ranges are used to express register constraints in the
> > allocator. This change splits these fixed ranges into one for
> > normal code and deferred code. The former are handeled as before
> > whereas the latter are only made visible while allocating
> > registers for deferred code.
> > 
> > This prevents forward looking decisions in normal code to be
> > impacted by register constraints from deferred code.
> > 
> > Change-Id: I67d562bb41166194e62765d5ab051bc961054fc7
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1477742
> > Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> > Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#60322}
> 
> Change-Id: I1a31150256eb5608db985b144aab7ea457169d0d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1530810
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60364}

TBR=jarin@chromium.org,sigurds@chromium.org,herhut@chromium.org

Change-Id: Id8ad6c39774e38dd67decea997e08a4c58c452ec
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1532327
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60381}
2019-03-21 08:34:17 +00:00
benchmarks [test] Ensure random generator in JSTests does not use float arithmetic 2018-12-17 10:05:08 +00:00
build_overrides [ndk] Change android ndk root for v8 2018-01-11 08:10:33 +00:00
custom_deps [build] Add common directory for custom deps 2018-06-08 19:23:02 +00:00
docs [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
gni profiler: Provide raw heap snapshots 2019-03-20 09:27:32 +00:00
include Revert "V8 x64 backend doesn't emit ABI compliant stack frames" 2019-03-20 14:36:04 +00:00
infra Reland "[ptr-compr][x64] Temporarily enable pointer compression on x64" 2019-03-20 14:23:33 +00:00
samples Add a sample that uses the JS API to create wasm 2018-06-07 23:43:38 +00:00
src Revert "Reland "[regalloc] Introduce deferred fixed ranges"" 2019-03-21 08:34:17 +00:00
test Revert "Reland "[regalloc] Introduce deferred fixed ranges"" 2019-03-21 08:34:17 +00:00
testing Remove dummy files created for rolling googletest. 2018-03-27 05:55:56 +00:00
third_party [DevTools] Roll inspector_protocol to a7423d8ca937e658ab3b85e3b02676bced145ba6. 2019-03-13 18:19:28 +00:00
tools Reland "[ptr-compr][x64] Temporarily enable pointer compression on x64" 2019-03-20 14:23:33 +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
.git-blame-ignore-revs [build] Add DEPS formatting to hyper-blame 2017-10-09 14:08:45 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore Add .ccls-cache to .gitignore 2019-02-26 10:32:45 +00:00
.gn [test] Remove obsolete test262 archive extract 2018-03-28 13:52:15 +00:00
.vpython [tools] Correctly identify and report test crashes and infra failures 2018-10-30 15:05:40 +00:00
.ycm_extra_conf.py [ycm] Switch from gnu++11 to gnu++14 2017-11-27 07:48:21 +00:00
AUTHORS Use inherited ctors for MacroAssembler and TurboAssembler 2019-03-08 09:31:30 +00:00
BUILD.gn Revert "V8 x64 backend doesn't emit ABI compliant stack frames" 2019-03-20 14:36:04 +00:00
ChangeLog [release] Merge ChangeLog back to master 2018-12-07 15:41:59 +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
DEPS Revert "Update V8 DEPS." 2019-03-20 13:19:42 +00:00
LICENSE Add antlr4 runtime library to support Torque 2018-04-10 10:01:01 +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
OWNERS [owners] Add szuend@chromium.org to top level owners 2019-03-18 09:37:52 +00:00
PRESUBMIT.py Revert "[torque] Temporarily disable torque format check to pass presubmit" 2019-02-20 14:07:17 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
snapshot_toolchain.gni Reland "Add Windows ARM64 ABI support to V8" 2018-10-24 19:46:36 +00:00
WATCHLISTS Update WATCHLIST wrt yangguo 2018-11-23 08:29:12 +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.