AuroraMiddleware/v8
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Hao Xu 024e5fb4fa [CSA][codegen] Add BitcastElision Phase 
Turbofan generates bitcast nodes like BitcastWordToTaggedSigned to
ensure the value types of definitions and uses are matched. These
nodes can be elided after MachineGraphVerifier verifying the graph.
This can avoid generating redundant instructions:

Before:
  xorl r15,r15
  cmpl [rdx+0xb],r15

After:
  cmpl [rdx+0xb],0x0

Change-Id: I84bc1b05d77ed9487001e34a93dfe14e45a7a678
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3837161
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83811}
2022-10-20 02:29:57 +00:00
.github
bazel [bazel] Add hide symbols from release / fast builds 2022-10-04 11:11:01 +00:00
build_overrides
custom_deps
docs
gni [mips32] Delete mips32 from v8 2022-09-13 07:54:54 +00:00
include [execution] Pass microtask queue from Context to MicrotasksScope 2022-10-19 14:56:37 +00:00
infra [infra] Add compile bot for conservative stack scanning 2022-10-06 10:46:42 +00:00
samples [sandbox] Initialize sandbox during V8::Initialize 2022-07-15 09:29:32 +00:00
src [CSA][codegen] Add BitcastElision Phase 2022-10-20 02:29:57 +00:00
test [cleanup] Remove flag for Wasm threads & atomics 2022-10-19 23:05:37 +00:00
testing [test] Migrate cctest/test-api-accessors.cc to unittests/ 2022-05-17 08:27:55 +00:00
third_party Roll inspector_protocol to update copyright headers 2022-10-09 17:40:23 +00:00
tools [CSA][codegen] Add BitcastElision Phase 2022-10-20 02:29:57 +00:00
.bazelrc
.clang-format
.clang-tidy
.editorconfig
.flake8
.git-blame-ignore-revs
.gitattributes
.gitignore [cleanup] Add .idea to .gitignore 2022-08-22 19:54:38 +00:00
.gn [fuchsia] Add API target level default value 2022-08-29 14:46:45 +00:00
.mailmap Add .mailmap entries for jgruber 2022-08-04 08:53:02 +00:00
.style.yapf
.vpython3 Reland "[resultdb] Add ResultDB indicator" 2022-10-14 11:05:59 +00:00
.ycm_extra_conf.py
AUTHORS [base] Fix build with gcc-13 2022-10-10 07:34:10 +00:00
BUILD.bazel [CSA][codegen] Add BitcastElision Phase 2022-10-20 02:29:57 +00:00
BUILD.gn [CSA][codegen] Add BitcastElision Phase 2022-10-20 02:29:57 +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
COMMON_OWNERS [owners] Add mliedtke to COMMON_OWNERS 2022-09-16 14:12:27 +00:00
DEPS Update V8 DEPS (trusted) 2022-10-18 12:37:46 +00:00
DIR_METADATA
ENG_REVIEW_OWNERS Add mlippautz@ to ENG_REVIEW_OWNERS. 2022-10-06 18:48:33 +00:00
INFRA_OWNERS [infra] Add alexschulze@ as infra owner 2022-07-18 09:08:54 +00:00
INTL_OWNERS
LICENSE [mips32] Delete mips32 from v8 2022-09-13 07:54:54 +00:00
LICENSE.fdlibm
LICENSE.strongtalk
LICENSE.v8
LOONG_OWNERS
MIPS_OWNERS
OWNERS Reland "[riscv32] Add RISCV32 backend" 2022-08-04 12:47:44 +00:00
PPC_OWNERS
PRESUBMIT.py [wasm] Limit module size in streaming decoder 2022-07-08 09:43:41 +00:00
README.md
RISCV_OWNERS
S390_OWNERS
WATCHLISTS Reland "[WATCHLISTS] Add riscv watch" 2022-08-19 07:33:57 +00:00
WORKSPACE [bazel] Remove zlib dependency 2022-08-17 15:30:25 +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.