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Peter Marshall c326e73d91 [builtins] Cleanup TypedArray constructors and reduce code size.
This CL is purely refactoring, no behavior changes.

Remove InitializeBasedOnLength and combine it with a new Stub-ified
TypedArrayInitialize which now allocates the buffer in both the
on-heap and off-heap cases.

Add TypedArrayInitializeWithBuffer because this was essentially a
special case that didn't share much logic with Initialize.
Factor out the common pieces into SetupTypedArray and AttachBuffer.

We can also always pass in the elementsSize, so there is no need
to calculate this again. LoadMapAndElementsSize is changed to 
LoadMapForType.

This reduces code size by ~8k.

Bug: chromium:711275,chromium:701768
Change-Id: I6ad8701e9c72f53bfd9484725fb82055be568c25
Reviewed-on: https://chromium-review.googlesource.com/483481
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44850}
2017-04-25 12:42:06 +00:00
benchmarks Revert "Refactoring: Make gtest testsuite the default." 2014-09-02 09:17:26 +00:00
build_overrides Remove build_overrides/v8.gni. 2017-01-26 20:18:58 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni [build] Remove remaining disable-inspector options in GN 2017-04-05 17:59:07 +00:00
gypfiles [intl] Reorganize code 2017-04-24 13:54:15 +00:00
include Add setter to Isolate for allowing Atomics.wait 2017-04-24 19:08:22 +00:00
infra [cq] Get codereview coverage bot's experiment percentage back to 100 2017-04-11 15:04:39 +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 [builtins] Cleanup TypedArray constructors and reduce code size. 2017-04-25 12:42:06 +00:00
test [parser] Inital parallel parse tasks implementation. 2017-04-25 12:35:21 +00:00
testing Use GTEST_LANG_CXX11 in V8 2016-07-25 13:06:42 +00:00
third_party Adapt String::find method via StringUtil adapter. 2017-02-03 22:17:24 +00:00
tools [Ic-Processor] Let us know if an IC is in opt. or unopt. code. 2017-04-25 12:01:18 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.gitignore Revert "Reland "ARM64: Add NEON support"" 2017-04-15 10:27:17 +00:00
.gn [build] Add v8gen support for PPC/s390 architecture 2017-03-13 15:05:51 +00:00
.ycm_extra_conf.py Use C++11 / gnu++11, not 0x 2016-03-22 15:24:43 +00:00
AUTHORS Migrate Number constants and undefined to C++ 2017-02-27 08:20:45 +00:00
BUILD.gn [wasm] Move wasm-macro-gen.h to test/common/wasm 2017-04-25 11:59:48 +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. 2017-04-25 03:23:57 +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 Introduce mkgrokdump to update tools/v8heapconst.py. 2017-04-20 06:15:02 +00:00
Makefile.android [build] Fix d8-for-Android builds 2016-05-20 12:10:45 +00:00
OWNERS Update to OWNER files. 2017-03-21 10:01:16 +00:00
PRESUBMIT.py [test] Enforce tracker prefix for all BUG entries 2017-03-14 16:16:22 +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 Add jbroman to WATCHLISTS for src/value-serializer.*. 2017-03-28 12:51:29 +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.