88eac4b870
This CL introduces typed optimizations for Turboshaft, which replaces all operations that produce a constant output (and don't have side effects) by the corresponding constant. In addition, a new pass for eliminating dead code is introduced that cannot only remove dead operations, but also rewrite branches that are not required into GotoOps. Drive-by: Introduce -0 as a "special value" for Float32Type and Float64Type to fix a few issues where 0 and -0 have been treated as identical. Bug: v8:12783 Change-Id: Ia1450ad7a9abb5d58c7d753596ed08a33a73184f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4110993 Reviewed-by: Darius Mercadier <dmercadier@chromium.org> Commit-Queue: Nico Hartmann <nicohartmann@chromium.org> Cr-Commit-Position: refs/heads/main@{#85143} |
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samples | ||
src | ||
test | ||
testing | ||
third_party | ||
tools | ||
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AUTHORS | ||
BUILD.bazel | ||
BUILD.gn | ||
CODE_OF_CONDUCT.md | ||
codereview.settings | ||
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DEPS | ||
DIR_METADATA | ||
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LICENSE | ||
LICENSE.fdlibm | ||
LICENSE.strongtalk | ||
LICENSE.v8 | ||
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OWNERS | ||
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PRESUBMIT.py | ||
README.md | ||
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WORKSPACE |
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.