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Predrag Rudic b0dc60f6b3 MIPS[64]: Port '[Deopt] Remove jump table in prologue of deopt entries.' 
Port commit 4ab96a9a81

Original message:
> Remove the use of a jump table in the prologue of the deopt entries
> and instead pass the bailout id explicitly in a register when calling
> the deopt entry routine from optimized code. This unifies the logic
> with the way the Arm64 code works. It saves the following amount of
> memory in code stubs:
>
>  - arm:  384KB
>  - ia32: 480KB
>  - x64:  240KB
>
> This could be offset by a slight increase in the size of optimized code
> for loading the immediate, however this impact should be minimal and
> will scale with the maximum number of bailout ids (e.g., the size of
> code will increase by one instruction per bailout id on Arm, therefore
> ~98,000 bailouts will be needed before the overhead is greater than
> the current fixed table size).
>
> Change-Id: I838604b48fa04cbd45320c7b9dac0de08fd8eb25
> Reviewed-on: https://chromium-review.googlesource.com/c/1398224
> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58636}

Change-Id: I4d070b90ebd4f9d4e82eaa74fe6d41c3a39d93e8
Reviewed-on: https://chromium-review.googlesource.com/c/1400848
Reviewed-by: Sreten Kovacevic <skovacevic@wavecomp.com>
Commit-Queue: Sreten Kovacevic <skovacevic@wavecomp.com>
Cr-Commit-Position: refs/heads/master@{#58655}
2019-01-09 10:14:59 +00:00
benchmarks [test] Ensure random generator in JSTests does not use float arithmetic 2018-12-17 10:05:08 +00:00
build_overrides [ndk] Change android ndk root for v8 2018-01-11 08:10:33 +00:00
custom_deps [build] Add common directory for custom deps 2018-06-08 19:23:02 +00:00
docs
gni [gn] Update link to v8 blog 2019-01-02 10:29:47 +00:00
include Advance GetProperyNames/GetOwnPropertyNames deprecation 2019-01-08 11:59:19 +00:00
infra [build][test] Add pointer-compression build and test configs 2018-12-18 09:04:04 +00:00
samples Add a sample that uses the JS API to create wasm 2018-06-07 23:43:38 +00:00
src MIPS[64]: Port '[Deopt] Remove jump table in prologue of deopt entries.' 2019-01-09 10:14:59 +00:00
test [parser] add source posisionts to private field synthetic variables 2019-01-09 05:11:24 +00:00
testing Remove dummy files created for rolling googletest. 2018-03-27 05:55:56 +00:00
third_party Revert "Reland "[build] Pull binutils via DEPS"" 2018-12-13 12:05:58 +00:00
tools .rodata from embedded.S should be read only 2019-01-09 07:58:51 +00:00
.clang-format
.clang-tidy [tool] Remove unfixed clang-tidy warnings to ease use. 2018-10-26 07:40:32 +00:00
.editorconfig
.git-blame-ignore-revs [build] Add DEPS formatting to hyper-blame 2017-10-09 14:08:45 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore Revert "Reland "[build] Pull binutils via DEPS"" 2018-12-13 12:05:58 +00:00
.gn [test] Remove obsolete test262 archive extract 2018-03-28 13:52:15 +00:00
.vpython [tools] Correctly identify and report test crashes and infra failures 2018-10-30 15:05:40 +00:00
.ycm_extra_conf.py [ycm] Switch from gnu++11 to gnu++14 2017-11-27 07:48:21 +00:00
AUTHORS Coalesce Microsoft Contributors in AUTHORS File 2018-12-20 01:24:31 +00:00
BUILD.gn [Torque] Array.prototype.filter moves to Torque. 2019-01-08 16:13:50 +00:00
ChangeLog [release] Merge ChangeLog back to master 2018-12-07 15:41:59 +00:00
CODE_OF_CONDUCT.md
codereview.settings
DEPS Update V8 DEPS. 2019-01-09 03:40:03 +00:00
LICENSE Add antlr4 runtime library to support Torque 2018-04-10 10:01:01 +00:00
LICENSE.fdlibm
LICENSE.strongtalk
LICENSE.v8
LICENSE.valgrind
OWNERS Reduce wasm OWNERS to current team members 2018-10-15 14:47:49 +00:00
PRESUBMIT.py [presubmit] Extend regular expression for V8_NOEXCEPT 2019-01-07 12:45:51 +00:00
README.md
snapshot_toolchain.gni Reland "Add Windows ARM64 ABI support to V8" 2018-10-24 19:46:36 +00:00
WATCHLISTS Update WATCHLIST wrt yangguo 2018-11-23 08:29:12 +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.