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bmeurer b37907ff7f [calls] Consistent call protocol for calls.
The number of actual arguments should always be available, there's no
point in trying to optimize away a simple assignment of an immediate to
a register before some calls.

The main motivation is to have a consistent state at the beginning of every
function. Currently the arguments register (i.e. rax or eax) either contains
the number of arguments or some random garbage depending on whether
the callsite decided that the callee might need the information or not.
This causes trouble with runtime implementations of functions that
do not set internal_formal_parameter_count to the DontAdaptArguments
sentinel (we don't have any of those yet), but also makes it impossible
to sanity check the arguments in the callee, because the callee doesn't
know whether the caller decided to pass the number of arguments or
random garbage.

BUG=v8:4413
LOG=n

Review URL: https://codereview.chromium.org/1330033002

Cr-Commit-Position: refs/heads/master@{#30648}
2015-09-09 05:01:22 +00:00
benchmarks Revert "Refactoring: Make gtest testsuite the default." 2014-09-02 09:17:26 +00:00
build Make gold plugin download more robust. 2015-09-04 08:52:30 +00:00
include [presubmit] Enable build/c++11 linter checking. 2015-09-07 14:24:18 +00:00
infra Use committer list from chrome-infra-auth group project-v8-committers 2015-08-27 16:10:22 +00:00
samples Rework startup-data-util. 2015-08-14 12:11:46 +00:00
src [calls] Consistent call protocol for calls. 2015-09-09 05:01:22 +00:00
test [es6] add js-perf-test for rest parameters 2015-09-08 23:17:11 +00:00
testing Converted V8 CQ config to proto-format 2015-05-28 15:02:53 +00:00
third_party/binutils Update binutils version. 2015-08-07 08:09:49 +00:00
tools Use idle task to perform incremental marking steps. 2015-09-08 15:54:37 +00:00
.clang-format Change clang-format config to allow for two empty lines between functions 2013-12-03 10:39:21 +00:00
.gitignore Adding CHECKED_OUT_VERSION to .gitignore. 2015-07-24 06:17:04 +00:00
.ycm_extra_conf.py [ycm] The YouCompleteMe configuration is not VIM specific. 2015-02-12 07:21:13 +00:00
AUTHORS MIPS:[turbofan] Improve boolean materialization compares. 2015-09-06 12:01:45 +00:00
BUILD.gn Use idle task to perform incremental marking steps. 2015-09-08 15:54:37 +00:00
ChangeLog Update change log to match roll branch. 2015-05-18 15:03:50 +00:00
codereview.settings Removed TRYSERVER_ROOT since this is not used anymore 2015-01-28 11:04:32 +00:00
DEPS Update V8 DEPS. 2015-09-08 03:25:32 +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 Add a makefile option for wasm prototype. 2015-08-18 18:25:31 +00:00
Makefile.android Reland [android] Migrate more configs to gyp. 2015-06-26 12:04:09 +00:00
Makefile.nacl Use the pnacl-clang toolchain for (P)NaCL builds 2014-10-06 08:10:50 +00:00
OWNERS Update OWNERS file. 2015-07-16 11:37:51 +00:00
PRESUBMIT.py Remove builtin/runtime name clash presubmit check. 2015-08-27 11:14:09 +00:00
README.md Fix line breaks in md documentation. 2015-03-25 14:54:54 +00:00
WATCHLISTS Debugger: move implementation to a separate folder. 2015-07-31 11:08:15 +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://code.google.com/p/v8/

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/*