8201da2913
There's a AsyncBuiltinsAssembler::InitializeNativeClosure() helper which is used by the `await` builtins to initialize the native closures, which are registered as fulfill/reject handlers. This helper initializes a JSFunction based on the builtin SharedFunctionInfo. Since we are dealing with builtins here, there's no point in using the fully generic helper CodeStubAssembler::GetSharedFunctionInfoCode(), but we can immediately assume that the SharedFunctionInfo::function_data() field contains a Smi builtin index (guarded by TNode CASTs). This almost cuts the generated code size for the `await` builtins in a half, and might also yield some performance improvements due to reduced register and instruction cache pressure. Bug: v8:7253, v8:8238 Change-Id: I3415c2f9e0f04a7154c4bf4c3fe8156854dbfe13 Reviewed-on: https://chromium-review.googlesource.com/c/1281604 Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#56662} |
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| benchmarks | ||
| build_overrides | ||
| custom_deps | ||
| docs | ||
| gni | ||
| include | ||
| infra | ||
| samples | ||
| src | ||
| test | ||
| testing | ||
| third_party | ||
| tools | ||
| .clang-format | ||
| .clang-tidy | ||
| .editorconfig | ||
| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .gn | ||
| .vpython | ||
| .ycm_extra_conf.py | ||
| AUTHORS | ||
| BUILD.gn | ||
| ChangeLog | ||
| CODE_OF_CONDUCT.md | ||
| codereview.settings | ||
| DEPS | ||
| LICENSE | ||
| LICENSE.fdlibm | ||
| LICENSE.strongtalk | ||
| LICENSE.v8 | ||
| LICENSE.valgrind | ||
| OWNERS | ||
| PRESUBMIT.py | ||
| README.md | ||
| snapshot_toolchain.gni | ||
| WATCHLISTS | ||
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://github.com/v8/v8/wiki
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 on the V8 wiki.