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97d39db4c7
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Clemens Backes 97d39db4c7 [compiler] Simplify register state accesses 
The register state is accessed a lot in the mid-tier register allocator.
Instead of going through an accessor with a DCHECK, just access
directly. This makes stepping for debugging a lot easier, and will
result in an easy-to-debug nullptr access if the register state is not
initialized.

R=thibaudm@chromium.org

Bug: v8:12330
Change-Id: Icf4d1cc187a34f28ee44fc9b80ee5d765aa14b9a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3372911
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78516}
2022-01-07 17:43:05 +00:00
.github [github] Close PRs created on the V8 GitHub mirror automatically 2021-01-12 08:39:59 +00:00
bazel [bazel] Fix build with older versions of GCC. 2022-01-07 10:13:34 +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 Make creating x64 snapshots on arm64 hosts mostly work 2021-12-20 17:27:02 +00:00
include cppgc: Avoid using members on stack in cppgc 2022-01-06 08:30:35 +00:00
infra [infra] Increase timeout (1h → 2h) and bump shards (8 → 10) due to lower performance bots (8 → 4 cpus) 2021-12-21 10:50:34 +00:00
samples [api] V8::Initialize cleanup 2021-11-30 14:30:38 +00:00
src [compiler] Simplify register state accesses 2022-01-07 17:43:05 +00:00
test [compiler] Fix another SIMD register spilling issue 2022-01-07 16:48:35 +00:00
testing [test][cleanup] Fix -Wshadow warnings in unittests 2021-09-27 08:59:01 +00:00
third_party [inspector] Gracefully ignore non-dictionary values as session state. 2022-01-05 11:12:04 +00:00
tools [gdbinit] Also look for OS::DebugBreak frames 2022-01-04 15:51:18 +00:00
.bazelrc [bazel] Fix build with GCC and older versions of Clang. 2022-01-05 19:39:03 +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 remove swarming_client 2021-08-24 10:39:33 +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 Verify mac-arm64 wheels for v8/.vpython spec. 2021-09-15 21:11:50 +00:00
.vpython3 Add vpython3 to DEPS 2021-11-05 18:08:29 +00:00
.ycm_extra_conf.py [ycm] Fix python script 2021-07-29 09:48:32 +00:00
AUTHORS Fix gen-keywords-gen-h.py 2022-01-03 16:38:27 +00:00
BUILD.bazel [bazel] Expose :v8 and :wee8 libraries with headers. 2022-01-05 19:59:15 +00:00
BUILD.gn [wasm] Implement loop peeling 2022-01-05 16:27:23 +00:00
CODE_OF_CONDUCT.md
codereview.settings
COMMON_OWNERS Remove neis@ from owners file 2021-10-26 11:15:20 +00:00
DEPS Update V8 DEPS. 2022-01-07 03:47:32 +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 [bigint] Move multiplication to src/bigint/ 2021-04-19 15:40:43 +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 Add myself to heap/ watchlist 2021-11-08 16:58:14 +00:00
WORKSPACE [bazel] Use bazel/config from within the main repository. 2022-01-04 22:39:42 +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.