AuroraMiddleware/v8
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jarin 1428fbe224 [crankshaft] Only exclude explicit 'arguments' (and 'this') from liveness analysis. 
Currently, we do not emit EnvironmentMarkers if the hydrogen value
in the environment is arguments object. As the hydrogen value can change
for local variables, we emit only some environment markers. That can
cause environment liveness analysis to mark part of live range as live
and part as dead. The zapping phase then only inserts zaps in
live->dead transitions, potentially zapping a live value.

With this CL, we only emit EnvironmentMarkers for 'this' and
'arguments' local variables, disregarding the hydrogen value.

BUG=chromium:612146
LOG=n

Review-Url: https://codereview.chromium.org/2026173003
Cr-Commit-Position: refs/heads/master@{#36641}
2016-06-01 12:04:35 +00:00
benchmarks Revert "Refactoring: Make gtest testsuite the default." 2014-09-02 09:17:26 +00:00
build_overrides Revert of [gn] Add unittests (patchset #7 id:120001 of https://codereview.chromium.org/2011853002/ ) 2016-05-31 14:33:05 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni [gn] Fix setting v8_target_arch default 2016-05-24 10:44:51 +00:00
gypfiles Move gcmole to toolchain.gypi 2016-05-30 14:33:17 +00:00
include Revert of Reland "[heap] Fine-grained JSArrayBuffer tracking" (patchset #2 id:20001 of https://codereview.chromium.org/2024063002/ ) 2016-05-31 09:32:17 +00:00
infra [CQ] Raise blink trybot percentage to 100 2016-04-29 09:05:06 +00:00
samples Rename shell to v8_shell 2016-05-10 12:32:25 +00:00
src [crankshaft] Only exclude explicit 'arguments' (and 'this') from liveness analysis. 2016-06-01 12:04:35 +00:00
test [crankshaft] Only exclude explicit 'arguments' (and 'this') from liveness analysis. 2016-06-01 12:04:35 +00:00
testing Converted V8 CQ config to proto-format 2015-05-28 15:02:53 +00:00
third_party/binutils [gn] Move build to gypfiles 2016-04-29 10:11:11 +00:00
tools Whitespace change to test goma switch 2016-05-30 09:42:26 +00:00
.clang-format [formatting] Remove the formatting requirement for 2 empty lines between declarations. 2016-01-25 09:50:17 +00:00
.gitignore Add v8.ignition_dispatches_table.json to .gitignore 2016-05-03 18:12:11 +00:00
.gn Add posix/BUILD.gn to exec_script_whitelist 2016-05-18 15:02:12 +00:00
.ycm_extra_conf.py Use C++11 / gnu++11, not 0x 2016-03-22 15:24:43 +00:00
AUTHORS tools: Fix a syntax error in plot-timer-events 2016-05-23 10:19:47 +00:00
BUILD.gn [turbofan] Implement simplistic checkpoint reducer. 2016-06-01 08:39:11 +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. 2016-06-01 03:23:45 +00:00
LICENSE Updates to the license information of third party components. 2015-06-16 12:37:50 +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 [build] Fix Makefile based (native) build. 2016-05-23 09:16:24 +00:00
Makefile.android [build] Fix d8-for-Android builds 2016-05-20 12:10:45 +00:00
Makefile.nacl [gn] Move build to gypfiles 2016-04-29 10:11:11 +00:00
OWNERS [owners] adding more toplevel owners (but mainly me) 2016-03-16 15:54:42 +00:00
PRESUBMIT.py Remove LOG line checking from presubmit 2016-05-10 17:21:56 +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 Try to reland v8_snapshot GN build changes, take #3 2016-05-20 07:00:09 +00:00
WATCHLISTS [GN] Watchlist upadate to track gyp changes. 2016-05-17 08:14:26 +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.