81642fa6c3
The deoptimizer calculates frame layout based on the translation's `height` field, together with additional data (e.g.: are we looking at the topmost frame? what kind of deopt are we in?). The result is the final deoptimized frame size in bytes, together with a bunch of intermediate results such as the variable frame size (= without the fixed-size portion). In order to consider the deoptimized frame size in optimized stack checks, we will need to calculate the frame layout during compilation in addition to what we currently do during deoptimization. This CL moves in that direction by extracting relevant parts of frame layout calculation into classes that can be reused by both compiler and deoptimizer. These helpers will support both precise and conservative modes; the deoptimizer will use the precise mode (since it has full information), while the instruction selector will use the conservative mode. Bug: v8:9534 Change-Id: I93d6c39f10d251733f4625d3cc161b2010652d02 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1760825 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Sigurd Schneider <sigurds@chromium.org> Cr-Commit-Position: refs/heads/master@{#63279} |
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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 | ||
| .flake8 | ||
| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .gn | ||
| .vpython | ||
| .ycm_extra_conf.py | ||
| AUTHORS | ||
| BUILD.gn | ||
| ChangeLog | ||
| CODE_OF_CONDUCT.md | ||
| codereview.settings | ||
| COMMON_OWNERS | ||
| DEPS | ||
| ENG_REVIEW_OWNERS | ||
| INFRA_OWNERS | ||
| INTL_OWNERS | ||
| LICENSE | ||
| LICENSE.fdlibm | ||
| LICENSE.strongtalk | ||
| LICENSE.v8 | ||
| LICENSE.valgrind | ||
| MIPS_OWNERS | ||
| OWNERS | ||
| PPC_OWNERS | ||
| PRESUBMIT.py | ||
| README.md | ||
| S390_OWNERS | ||
| 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://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.