b9855173a8
We switch the order of inlining and loop unrolling optimizations. This gives small improvements to wasm-gc benchmarks. Changes: - Change the loop analysis algorithm to accept loops directly connected to the graph's end. This is required because some nodes in an inlined function, such as tail calls, might be directly connected to the outer function's end without an intervening LoopExit node. - Based on the above, skip emitting loop exits for some Throw nodes in WasmGraphBuildingInterface. - Introduce WasmInliningPhase, add it before loop unrolling. Remove inlining from WasmOptimizationPhase. - Handle graph terminators in loop unrolling. - Add loops in the inlined function to the callers loop_infos. Drive-by: - Allow more wasm builtins in unrolled loops. - Reduce inlining parameters to reflect that functions are now slightly smaller during inlining, as no unrolling has taken place yet. Bug: v8:12166 Change-Id: Iadd6b2f75170aa153ca1efb47fbb0d185c2b8371 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3329783 Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org> Cr-Commit-Position: refs/heads/main@{#78394} |
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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.