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Mike Stanton bd9ef0f32a [Torque] Reduce code size by combining FixedArray/FixedDoubleArray paths 
This CL reduces the instruction size of Array.prototype.every and some
by ~20%. Should performance allow it we could do the same for other
array builtins. We attach a boolean to the FastJSArrayWitness that
remembers if it's dealing with a FixedArray or a FixedDoubleArray.
We have to check this in the loop, but it is likely that reduced
code size more than pays for the extra check, since the loop will
be dominated by the call to the users callback function.

BUG: v8:7672
Change-Id: Id3bab2b163d7ba73424250d8bb194712909cd37e
Reviewed-on: https://chromium-review.googlesource.com/c/1484293
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59835}
2019-02-25 14:49:27 +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] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni Reland^2 "[build] disable C++ optimization for mksnapshot code." 2019-02-15 14:44:29 +00:00
include [tracing] Fix races in TracingController implementation 2019-02-21 08:34:16 +00:00
infra [v8] define linux64 gc stress trybot in src side 2019-02-20 15:10:23 +00:00
samples Add a sample that uses the JS API to create wasm 2018-06-07 23:43:38 +00:00
src [Torque] Reduce code size by combining FixedArray/FixedDoubleArray paths 2019-02-25 14:49:27 +00:00
test [cpu-profiler] Enable CpuProfileDeepStack test 2019-02-25 14:31:37 +00:00
testing Remove dummy files created for rolling googletest. 2018-03-27 05:55:56 +00:00
third_party [array] Eagerly copy elements into a FixedArray for sorting 2019-02-18 11:02:17 +00:00
tools Whitespace change to trigger bots 2019-02-22 11:36:52 +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 Revert "[build] Port "Add patched eu-strip in third_party"" 2019-01-31 16:44:20 +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 Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
BUILD.gn Revert "[Torque] Port Array.prototype.reduce and reduceRight to Torque" 2019-02-25 13:30:16 +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 Update V8 DEPS. 2019-02-24 03:48:03 +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 Reduce wasm OWNERS to current team members 2018-10-15 14:47:49 +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] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +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

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://github.com/v8/v8/wiki

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 on the V8 wiki.