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Georgia Kouveli bcf1172992 [arm64] Preparation for padding of arguments
As part of JSSP removal, we need to align the arguments passed to functions
on the stack, by adding a padding slot when the total number of arguments
is odd.

This patch introduces the kPadArguments flag (which is currently set to
false for all architectures), which will control padding of arguments in
architecture-independent parts of the code (deoptimizer, instruction
selector).

It also adds some executable tests for tail calls with various stack
parameter counts on the caller and callee sides.

This will be turned on for arm64 together with arm64-specific changes to
the code generator, the MacroAsembler and the builtins, in a later patch.

Bug: v8:6644
Change-Id: I79a5c149123fe8130cedd1ccffec3d9b50361e08
Reviewed-on: https://chromium-review.googlesource.com/806554
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50134}
2017-12-15 16:35:36 +00:00
benchmarks Fix common misspellings 2017-08-02 09:35:28 +00:00
build_overrides Remove build_override for macOS min SDK and deployment target. 2017-07-14 18:24:44 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni [gn] Add v8_monolith static library target. 2017-11-27 10:07:51 +00:00
gypfiles [build] Add generic num fuzzer isolates 2017-11-10 14:26:48 +00:00
include [turbofan] Add counter for disabling of speculation bit 2017-12-14 15:00:56 +00:00
infra V8: Migrate 8 builders to LUCI 2017-12-13 17:23:14 +00:00
samples [cleanup] use unique_ptr for the DefaultPlatform 2017-11-14 09:57:18 +00:00
src [arm64] Preparation for padding of arguments 2017-12-15 16:35:36 +00:00
test [arm64] Preparation for padding of arguments 2017-12-15 16:35:36 +00:00
testing Use GTEST_LANG_CXX11 in V8 2016-07-25 13:06:42 +00:00
third_party Update third_party/binutils version to match Chromium. 2017-12-08 07:28:26 +00:00
tools [test] Remove duration from testcase. 2017-12-15 08:10:40 +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
.gitignore [d8] Fix --enable-tracing 2017-11-30 10:53:37 +00:00
.gn For building v8 using gn on aix_ppc64, linux_s390x and linux_ppc64(both LE and BE). 2017-05-12 01:35:09 +00:00
.vpython Add a comment for the VPython dep 2017-10-25 12:23:35 +00:00
.ycm_extra_conf.py [ycm] Switch from gnu++11 to gnu++14 2017-11-27 07:48:21 +00:00
AUTHORS [build] Do not fail build if source dir has 'debug' in it. 2017-12-10 22:26:34 +00:00
BUILD.gn Revert "[builtins] Port Object.p.toLocaleString to CSA from JS" 2017-12-15 08:49:16 +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 Make Gerrit the default code review for V8 2017-06-30 17:37:37 +00:00
DEPS Update V8 DEPS. 2017-12-14 04:52:10 +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 [test] Continued test support for make targets 2017-10-20 15:01:51 +00:00
Makefile.android [build] Fix d8-for-Android builds 2016-05-20 12:10:45 +00:00
OWNERS Add myself to OWNERS to be able to approve/make infra-related changes 2017-11-09 22:52:19 +00:00
PRESUBMIT.py Add vpython verification presubmit 2017-11-03 10:39:56 +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 MIPS[64]: Generate snapshots on MIPS big-endian targets 2017-11-24 19:00:32 +00:00
WATCHLISTS Add adamk to a few WATCHLISTS 2017-11-10 21:38:29 +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://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.