656c74218f
"InitMerge" did compute the state at the merge point, and a following "MergeStackWith" or "MergeFullStackWith" would then generate the code to merge the current state into the computed state. As every "InitMerge" is followed by an actual merge, we can combine the two and save one iteration over the two states. The only change in generated code is that we initialize the merge state after a one-armed if from the if-state instead of the else-state. This could potentially make the if-branch slightly cheaper and the else-branch slightly slower, but will not negatively impact overall code size. This CL should save roughly 2% of Liftoff compilation time. R=dlehmann@chromium.org Bug: v8:13565, v8:13673 Change-Id: Id323a15e7fd765727f46830509fbaf7f5498c229 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4203380 Reviewed-by: Daniel Lehmann <dlehmann@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/main@{#85616} |
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| gni | ||
| include | ||
| infra | ||
| samples | ||
| src | ||
| test | ||
| testing | ||
| third_party | ||
| tools | ||
| .bazelrc | ||
| .clang-format | ||
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| .editorconfig | ||
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| .mailmap | ||
| .style.yapf | ||
| .vpython3 | ||
| .ycm_extra_conf.py | ||
| AUTHORS | ||
| BUILD.bazel | ||
| BUILD.gn | ||
| CODE_OF_CONDUCT.md | ||
| codereview.settings | ||
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| DEPS | ||
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| LICENSE | ||
| LICENSE.fdlibm | ||
| LICENSE.strongtalk | ||
| LICENSE.v8 | ||
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| PPC_OWNERS | ||
| PRESUBMIT.py | ||
| README.md | ||
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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.