a2b3480611
This CL refactors the implementation of WASM->JS import wrappers in order to make the wrapper code shareable. Instead of specializing to the import index, we use a tuple as the object ref in the both the import and indirect tables. The tuple allows the wrapper code to load both the calling instance and the target callable, rather than relying on code specialization. This requires some tricky codegen machinery, because WASM call descriptors expect an instance argument in a given register, yet the wrappers receive a tuple, the code generator must generate a prologue that loads the instance (and the callable), since it is not possible to express this at the graph level. R=mstarzinger@chromium.org CC=clemensh@chromium.org Change-Id: Id67e307f7f5089e776f5439a53b5aee4b76934b6 Reviewed-on: https://chromium-review.googlesource.com/c/1268237 Commit-Queue: Ben Titzer <titzer@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#56520} |
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benchmarks | ||
build_overrides | ||
custom_deps | ||
docs | ||
gni | ||
include | ||
infra | ||
samples | ||
src | ||
test | ||
testing | ||
third_party | ||
tools | ||
.clang-format | ||
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.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.