AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity
70,701 Commits 1 Branch 0 Tags 839 MiB
C++ 67.6%
JavaScript 30.1%
Python 1.2%
C 0.3%
TypeScript 0.3%
Other 0.4%
10d4418f57
Go to file
Ng Zhi An 10d4418f57 [wasm-simd] Optimize i64x2.shr_s 
Use logical shifts to emulate arithmetic shift, by first adding a bias
to make all signed values unsigned, then subtracting the shifted bias.
Details are in code comments for SharedTurboAssembler::I64x2ShrS.

Also refactor ia32 (which was already using this algorithm) to use the
shared macro-assembler function. And convert Liftoff's implementation as
well.

Bug: v8:12058
Change-Id: Ia1fd5fe5a9a0b7a7f31c426d4112256c8bf7021b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3083291
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76209}
2021-08-10 18:20:09 +00:00
.github [github] Close PRs created on the V8 GitHub mirror automatically 2021-01-12 08:39:59 +00:00
bazel [bazel] Initial support to mjsunit tests 2021-08-09 14:12:02 +00:00
build_overrides [build] Remove obsolete gn flag 2021-01-11 15:50:59 +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 [bigint] Toom-Cook multiplication 2021-07-07 10:12:26 +00:00
include [fastcall] Add 8-byte element types support for TypedArrays 2021-08-10 15:56:30 +00:00
infra Revert "[infra] Dummy change to test OWNERS enforcement" 2021-08-03 08:29:49 +00:00
samples Reland "[api] Add v8::Isolate::ThrowError helper" 2021-04-16 11:48:05 +00:00
src [wasm-simd] Optimize i64x2.shr_s 2021-08-10 18:20:09 +00:00
test [fastcall] Add 8-byte element types support for TypedArrays 2021-08-10 15:56:30 +00:00
testing [macros] Upstream Google3 changes 2021-06-24 16:36:14 +00:00
third_party Roll inspector-protocol to 32cf5f2bf4dc20c73ead291e68d2e2f6b638cd57 2021-07-09 13:01:24 +00:00
tools [tools] Update deprecation listing script 2021-08-10 08:42:59 +00:00
.bazelrc [bazel] Support build mode compilation 2021-07-13 10:14:16 +00:00
.clang-format
.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 [log] Include tickprocessor log files in git 2021-06-21 15:26:29 +00:00
.gn Revert "[build] Separate out inspector as a shared library" 2021-07-02 16:15:20 +00:00
.mailmap Restore consistency between .mailmap and AUTHORS 2021-06-24 08:58:04 +00:00
.vpython [tools] Implement confidence-based number of runs 2019-05-09 09:42:28 +00:00
.ycm_extra_conf.py [ycm] Fix python script 2021-07-29 09:48:32 +00:00
AUTHORS Promises: Add is_silent flag and ignore rejects when it is set 2021-07-07 08:48:00 +00:00
BUILD.bazel Reland "[counters] Fix reentrant timers for V8.Execute" 2021-08-09 18:41:50 +00:00
BUILD.gn Reland "[counters] Fix reentrant timers for V8.Execute" 2021-08-09 18:41:50 +00:00
CODE_OF_CONDUCT.md
codereview.settings Make Gerrit the default code review for V8 2017-06-30 17:37:37 +00:00
COMMON_OWNERS Remove ulan@ from OWNERS 2021-06-08 13:10:21 +00:00
DEPS Update V8 DEPS. 2021-08-10 03:49:49 +00:00
DIR_METADATA Add DIR_METADATA files to v8. 2020-10-20 22:12:28 +00:00
ENG_REVIEW_OWNERS Update ENG_REVIEW_OWNERS 2021-02-25 14:28:32 +00:00
INFRA_OWNERS Add team members as owners 2020-08-18 08:29:04 +00:00
INTL_OWNERS add ftang as owner 2020-04-24 19:19:36 +00:00
LICENSE [wasm] Draft version of C/C++ Wasm API 2019-04-17 16:00:26 +00:00
LICENSE.fdlibm
LICENSE.strongtalk
LICENSE.v8
MIPS_OWNERS [mips] Request to be an owner of MIPS files 2020-11-23 09:43:49 +00:00
OWNERS Revert "Make autoroll account owner of auto-updated files" 2021-08-06 10:40:25 +00:00
PPC_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
PRESUBMIT.py [bigint] Move multiplication to src/bigint/ 2021-04-19 15:40:43 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
RISCV_OWNERS [riscv64] Change one of the owners for RISCV. 2021-04-20 14:39:26 +00:00
S390_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
WATCHLISTS Reland "[watchlist] Add cbruni@ to api watchlist" 2021-08-10 13:51:49 +00:00
WORKSPACE [bazel] Adds ICU 2021-06-30 12:54:15 +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.