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Camillo Bruni 48fc6fa481 [snapshot] Microoptimise Deserializer
- Avoid handle derefs where possible
- Split off PostProcessNewJSReceiver to avoid additional instance-type
  checks
- Precompute should_rehash_ to avoid additional branches in
  PostProcessNewObject

Bug: v8:12195
Change-Id: Ib80e711ced48b9b43072ada4e7ed72eb11ab0b8c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3270537
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79279}
2022-02-25 11:44:37 +00:00
.github [github] Close PRs created on the V8 GitHub mirror automatically 2021-01-12 08:39:59 +00:00
bazel [bazel] Improve bazel build 2022-02-16 11:40:13 +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
gni [cleanup] Remove deprecated build flag v8_enable_raw_heap_snapshots 2022-02-18 16:21:20 +00:00
include [sandbox] Store external pointers in EmbedderDataSlots in shifted form 2022-02-22 13:40:35 +00:00
infra [infra] migrate simple PRESUBMIT scripts to py3 2022-02-18 13:43:30 +00:00
samples Initialize V8 sandbox in samples 2022-02-14 11:15:10 +00:00
src [snapshot] Microoptimise Deserializer 2022-02-25 11:44:37 +00:00
test [test] Add gc-interval flag to deopt-pretenure test 2022-02-25 10:00:07 +00:00
testing [test][cleanup] Fix -Wshadow warnings in unittests 2021-09-27 08:59:01 +00:00
third_party [infra] Fork test262-harness 2022-02-23 18:47:35 +00:00
tools [tools] Update gcmole 2022-02-24 10:30:13 +00:00
.bazelrc [bazel] Use v8_enable_handle_zapping only in debug builds. 2022-01-11 11:32:39 +00:00
.clang-format
.clang-tidy
.editorconfig
.flake8 remove swarming_client 2021-08-24 10:39:33 +00:00
.git-blame-ignore-revs [infra] Update .git-blame-ignore-revs 2020-03-03 12:59:13 +00:00
.gitattributes
.gitignore [infra] Fork test262-harness 2022-02-23 18:47:35 +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
.style.yapf [tools] Add basic pointer compression to grokdump 2022-02-04 14:35:26 +00:00
.vpython Verify mac-arm64 wheels for v8/.vpython spec. 2021-09-15 21:11:50 +00:00
.vpython3 [infra] Make various scripts compatible with Python3 2022-02-04 07:17:24 +00:00
.ycm_extra_conf.py [ycm] Fix python script 2021-07-29 09:48:32 +00:00
AUTHORS [riscv64] Add RVV Float-Point Widening Instructions 2022-02-22 10:59:25 +00:00
BUILD.bazel [turbofan] Verification pass for SimplifiedLowering 2022-02-24 16:33:37 +00:00
BUILD.gn [turbofan] Verification pass for SimplifiedLowering 2022-02-24 16:33:37 +00:00
CODE_OF_CONDUCT.md
codereview.settings
COMMON_OWNERS Update OWNERS files 2022-02-16 08:16:04 +00:00
DEPS Update ICU 2022-02-25 05:57:39 +00:00
DIR_METADATA Add DIR_METADATA files to v8. 2020-10-20 22:12:28 +00:00
ENG_REVIEW_OWNERS Add verwaest@ to ENG_REVIEW_OWNERS. 2021-09-16 15:00:57 +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
LICENSE.fdlibm
LICENSE.strongtalk
LICENSE.v8
LOONG_OWNERS [LOONG64] Add LoongArch64 backend 2021-08-16 13:05:19 +00:00
MIPS_OWNERS [mips] Add LiuYu to MIPS_OWNERS 2021-09-08 01:38:52 +00:00
OWNERS Let infra owners own all dot files 2021-11-05 18:57:18 +00:00
PPC_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
PRESUBMIT.py [infra] migrate the main PRESUBMIT script to py3 2022-02-18 13:44:33 +00:00
README.md
RISCV_OWNERS Add Lu Yahan to RISC-V owners list 2021-09-13 16:35:00 +00:00
S390_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
WATCHLISTS Update WATCHLISTS 2022-02-24 11:37:36 +00:00
WORKSPACE [bazel] Cleanup style with Buildifier. 2022-01-11 10:00:36 +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://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.