63134966fd
The expected behavior of the optimized code is deoptimizing when using a BigInt as an index and throwing an error (from CheckedTaggedToInt64). The representation changer tries to insert conversions for this case where - The output node is represented in Word64 (SignedBigInt64) - The use info is CheckedSigned64AsWord64 The representation changer first rematerializes the output node to TaggedPointer because the type check is not BigInt. Then it falls wrongly to the branch where the output representation is TaggedPointer, the output type is SignedBigInt64 in GetWord64RepresentationFor. Bug: v8:9407, chromium:1403574, chromium:1404607 Change-Id: I9d7ef4c94c1dc0aa3b4f49871ec35ef0877efc24 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4135876 Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Commit-Queue: Qifan Pan <panq@google.com> Cr-Commit-Position: refs/heads/main@{#85094} |
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| 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.