AuroraMiddleware/v8
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bmeurer 380a0207db [crankshaft] Don't bailout on uninitialized access to arguments object. 
When Crankshaft compiles a keyed load to arguments, it disabled
optimization unless the KEYED_LOAD_IC for the access was monomorphic.
But that's too restrictive, since it will also disable optimization
for this function when the access is on a path that was never executed
so far.

This was spotted in the Node.js core function EventEmitter.prototype.emit,
which was no longer optimizable with Crankshaft using latest V8.

R=jarin@chromium.org
BUG=v8:5790

Review-Url: https://codereview.chromium.org/2607303002
Cr-Commit-Position: refs/heads/master@{#42005}
2017-01-02 06:52:04 +00:00
benchmarks Revert "Refactoring: Make gtest testsuite the default." 2014-09-02 09:17:26 +00:00
build_overrides [build] Roll build a3b623a:11a223f 2016-11-29 11:17:15 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni [build] Use MSVS 2015 by default. 2016-12-01 08:50:57 +00:00
gypfiles [build] Use MSVS 2015 by default. 2016-12-01 08:50:57 +00:00
include abort in delete operators that shouldn't be called 2016-12-28 18:48:28 +00:00
infra CQ config: remove unused hide_ref_in_committed_msg. 2016-12-16 16:41:36 +00:00
samples Reland of land "Turn libbase into a component" (patchset #1 id:1 of https://codereview.chromium.org/2396933002/ ) 2016-10-07 07:56:52 +00:00
src [crankshaft] Don't bailout on uninitialized access to arguments object. 2017-01-02 06:52:04 +00:00
test [crankshaft] Don't bailout on uninitialized access to arguments object. 2017-01-02 06:52:04 +00:00
testing Use GTEST_LANG_CXX11 in V8 2016-07-25 13:06:42 +00:00
third_party [inspector] Roll inspector_protocol to c65b17da8a32bc6ab25b4ebbef1008f23c69e7d1. 2016-12-05 16:22:12 +00:00
tools Whitespace change to test trusty switch 2016-12-29 21:10:56 +00:00
.clang-format [formatting] Remove the formatting requirement for 2 empty lines between declarations. 2016-01-25 09:50:17 +00:00
.gitignore fix typo in .gitignore 2016-12-01 07:49:45 +00:00
.gn [build] Roll build a3b623a:11a223f 2016-11-29 11:17:15 +00:00
.ycm_extra_conf.py Use C++11 / gnu++11, not 0x 2016-03-22 15:24:43 +00:00
AUTHORS [counters] Add UseCounters for 'f() = 0' syntax 2016-12-27 17:48:40 +00:00
BUILD.gn [builtins] Move several CodeStub-based ICs to builtins 2016-12-30 10:31:01 +00:00
ChangeLog [Release] Update ChangeLog file 2016-02-17 21:29:09 +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 Use v8-reviews@ for review mail, so v8-dev@ is free for dev discussions 2015-09-09 08:14:11 +00:00
DEPS Update V8 DEPS. 2016-12-30 04:20:27 +00:00
LICENSE Updates to the license information of third party components. 2015-06-16 12:37:50 +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
Makefile Add v8_os_page_size flag for cross compilation 2016-11-15 14:41:03 +00:00
Makefile.android [build] Fix d8-for-Android builds 2016-05-20 12:10:45 +00:00
OWNERS Add gsathya to top-level OWNERS 2016-12-21 17:49:41 +00:00
PRESUBMIT.py [test] Only run presubmit for changed status files 2016-12-06 11:42:11 +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 Use clang for snapshot_toolchain by default, except on ChromeOS. 2016-08-23 14:04:27 +00:00
WATCHLISTS [inspector] added devtools-reviews@chromium.org in WATCHLISTS for inspector 2016-09-29 15:16:54 +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.