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Peter Marshall 29ea4d1ef5 [cpu-profiler] Move bailout reason into rare_info struct 
This was set very regularly in FillFunctionInfo, but it was almost
always set to kNoReason, because the associated SFI had no bailout
reason. Given that having a bailout reason is the rare case, we
just assume an empty bailout reason, and use the rare_data_ struct
to store the string pointer if we do need it.

This saves another pointer of space on the CodeEntry object (approx
1.4 MiB on the node server example).

Bug: v8:7719
Change-Id: I8e2272b572285ddf353ba0b303e6da095b7d5272
Reviewed-on: https://chromium-review.googlesource.com/1064370
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53244}
2018-05-18 08:28:57 +00:00
benchmarks Fix common misspellings 2017-08-02 09:35:28 +00:00
build_overrides [ndk] Change android ndk root for v8 2018-01-11 08:10:33 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni Revert "Roll third_party/inspector_protocol to 59ca26e" 2018-04-23 17:38:31 +00:00
include [api] Expose PreviewEntries as public API 2018-05-17 08:04:33 +00:00
infra [tools] Add minor_mc test variant to the V8 CQ 2018-05-16 13:52:45 +00:00
samples [sample] fix potential memory leak. 2018-02-21 13:06:18 +00:00
src [cpu-profiler] Move bailout reason into rare_info struct 2018-05-18 08:28:57 +00:00
test Revert "[in-place weak refs] Replace WeakCells in FeedbackVector." 2018-05-18 07:21:18 +00:00
testing Remove dummy files created for rolling googletest. 2018-03-27 05:55:56 +00:00
third_party Update V8 DEPS. 2018-05-15 08:40:54 +00:00
tools Reland "[release] Switch auto-roller to gclient setdep" 2018-05-17 16:24:31 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +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 [git] Add gitattributes to convert CRLF to LF automatically 2018-05-07 18:44:49 +00:00
.gitignore Add antlr4 runtime library to support Torque 2018-04-10 10:01:01 +00:00
.gn [test] Remove obsolete test262 archive extract 2018-03-28 13:52:15 +00:00
.vpython [tools] Add pypiwin32 pacakge to VPython config 2018-03-09 20:33:36 +00:00
.ycm_extra_conf.py [ycm] Switch from gnu++11 to gnu++14 2017-11-27 07:48:21 +00:00
AUTHORS Document --module option for d8 2018-05-16 07:35:46 +00:00
BUILD.gn [torque] handle souce position information in a global context 2018-05-16 16:09:01 +00:00
ChangeLog [tools] Merge ChangeLog from latest release 2017-12-19 12:30:56 +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 [tools] Make sure pinned depot_tools don't auto-update 2018-05-17 11:11:08 +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 Adding a few more wasm related OWNERS. 2018-03-01 20:19:07 +00:00
PRESUBMIT.py [V8] Add back owners check 2018-04-27 07:43:39 +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 MIPS[64]: Generate snapshots on MIPS big-endian targets 2017-11-24 19:00:32 +00:00
WATCHLISTS Remove v8-x87-ports@ from WATCHLIST 2018-02-26 19:56:21 +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.