97390bdc39
This CL refactors how the first byte(s) of the input are used to set internal configuration, like which compiler to use and whether Liftoff will be used as reference instead of the interpreter. We now always use exactly one byte, and use it for all internal configuration. If more bits are needed in the future we can either extend to two bytes, or use the same bits for multiple things, while avoiding to lose coverage of all interesting configurations. For now, we use the first byte to derive - which compiler to use per function, - whether to use Liftoff as reference, and - (new) whether to globally enable the mid-tier register allocator. R=thibaudm@chromium.org Bug: v8:12330 Change-Id: I2cae6628554ca8f7e08115015b36f9f0a6b8c34f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3253156 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/main@{#77929} |
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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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LICENSE | ||
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LICENSE.strongtalk | ||
LICENSE.v8 | ||
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OWNERS | ||
PPC_OWNERS | ||
PRESUBMIT.py | ||
README.md | ||
RISCV_OWNERS | ||
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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.