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Seth Brenith a9270e2bde Reland "[torque] Allow storing to bitfield structs that are stored in Smis" 
This is a reland of 80843eda31

Original change's description:
> [torque] Allow storing to bitfield structs that are stored in Smis
> 
> This change:
> 1. Updates the Torque compiler to allow direct access to bitfields that
>    are packed within Smi values, which previously would have required a
>    separate untagging step,
> 2. Updates JSRegExpStringIterator to represent its flags in Torque,
> 3. Adds reduction cases in MachineOperatorReducer for when the input to
>    a branch or the left-hand side of a Word32Equals is based on a 64-bit
>    shift-and-mask operation which has been truncated to 32 bits, as is
>    the case in the code generated by step 1, and
> 4. Adds a reduction case in MachineOperatorReducer to remove an extra
>    Word64And operation added by step 1.
> 
> Bug: v8:7793
> Change-Id: Ib4ac2def6211b3cae6be25a8b2a644be5c7d6d3f
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2119225
> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#67290}

Bug: v8:7793
Change-Id: I783b6ec080042fec0e922927f6675dede458a072
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2159731
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67305}
2020-04-22 10:34:46 +00:00
build_overrides [tracing] Migrate tracing to Perfetto track events 2020-04-17 21:31:24 +00:00
custom_deps Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
docs Add OWNERS for docs/ 2019-05-15 12:06:15 +00:00
gni [tracing] Migrate tracing to Perfetto track events 2020-04-17 21:31:24 +00:00
include cppgc: Add public target to build against 2020-04-21 12:48:23 +00:00
infra Configure ARM builder for CFI protection testing 2020-04-17 09:15:56 +00:00
samples [api] Create v8::String::NewFromLiteral that returns Local<String> 2020-03-09 12:02:07 +00:00
src Reland "[torque] Allow storing to bitfield structs that are stored in Smis" 2020-04-22 10:34:46 +00:00
test Reland "[torque] Allow storing to bitfield structs that are stored in Smis" 2020-04-22 10:34:46 +00:00
testing Roll v8/third_party/googletest/src/ 10b1902d8..e3f0319d8 (43 commits) 2020-04-15 07:23:10 +00:00
third_party [tracing] Migrate tracing to Perfetto track events 2020-04-17 21:31:24 +00:00
tools [weakrefs] Fix creation of WeakRef and FinalizationRegistry constructors 2020-04-21 20:59:04 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.clang-tidy [tool] Remove unfixed clang-tidy warnings to ease use. 2018-10-26 07:40:32 +00:00
.editorconfig Add .editorconfig 2017-07-28 13:39:24 +00:00
.flake8 Add .flake8 to allow for python style checking. 2019-07-19 21:44:03 +00:00
.git-blame-ignore-revs [infra] Update .git-blame-ignore-revs 2020-03-03 12:59:13 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore [tracing] Migrate tracing to Perfetto track events 2020-04-17 21:31:24 +00:00
.gn [build] Dynamically decide if to use system xcode 2019-07-29 08:20:24 +00:00
.vpython [tools] Implement confidence-based number of runs 2019-05-09 09:42:28 +00:00
.ycm_extra_conf.py Fix ycm config for headers without source 2019-12-09 11:59:21 +00:00
AUTHORS [builtins][MIPS]: Workaround gas auto-align issue 2020-04-17 09:36:25 +00:00
BUILD.gn Reland "[snapshot] Extract more files" 2020-04-22 06:09:18 +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
COMMON_OWNERS heap: Add Oilpan folks to COMMON_OWNERS 2020-04-14 08:55:52 +00:00
DEPS Fix autoroller failure 2020-04-21 16:41:53 +00:00
ENG_REVIEW_OWNERS Add eng review owners as escalation path 2019-05-15 19:12:10 +00:00
INFRA_OWNERS Remove myself from owners 2019-12-12 14:22:32 +00:00
INTL_OWNERS Add missing owners files 2019-05-31 07:21:01 +00:00
LICENSE [wasm] Draft version of C/C++ Wasm API 2019-04-17 16:00:26 +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
MIPS_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
OWNERS Add syg@chromium.org as DEPS owner for test262 rolls 2019-09-17 19:29:11 +00:00
PPC_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
PRESUBMIT.py Remove the #undef check from the Presubmit for .cc files 2020-01-24 15:24:51 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
S390_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
WATCHLISTS Stop watching for API changes in WATCHLISTS 2020-04-08 07:06:45 +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://v8.dev/docs

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 at v8.dev/docs/contribute.