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Thibaud Michaud d806ca7bc8 [regalloc] Do not resolve control-flow for deopt 
Connecting moves can be inserted in the gap of the last instruction of a
block by the register allocator. The implicit assumption is that the
last instruction does not have any operand, so that the connecting move
does not invalidate any use of the destination operand.
Deoptimization breaks this assumption as it both terminates its block
and has operands. Omit the connecting move in this case to avoid
invalidating the deopt operands.

R=nicohartmann@chromium.org

Bug: v8:12218
Change-Id: Icce8e455949b19338ec7255dbb9b37963e857a6f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3211572
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77341}
2021-10-12 10:57:15 +00:00
.github [github] Close PRs created on the V8 GitHub mirror automatically 2021-01-12 08:39:59 +00:00
bazel [bazel] Adds -Wno-bitwise-instead-of-logical 2021-10-11 11:45:46 +00:00
build_overrides [build] Remove obsolete gn flag 2021-01-11 15:50:59 +00:00
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gni [LOONG64] Add LoongArch64 backend 2021-08-16 13:05:19 +00:00
include [api] Deprecate Set/ResetToBookmark 2021-10-12 10:25:37 +00:00
infra [infra] Add compile only lite-mode arm-sim builder to CQ 2021-10-06 11:25:30 +00:00
samples [cleanup] Fix -Wshadow warnings in samples/shell 2021-09-24 22:58:35 +00:00
src [regalloc] Do not resolve control-flow for deopt 2021-10-12 10:57:15 +00:00
test [api] Add benchmark for api accessors 2021-10-12 10:44:52 +00:00
testing [test][cleanup] Fix -Wshadow warnings in unittests 2021-09-27 08:59:01 +00:00
third_party [torque] Make return types required 2021-09-30 15:54:17 +00:00
tools [torque] Add source positions for generated instance types 2021-10-12 09:30:26 +00:00
.bazelrc [bazel] Support build mode compilation 2021-07-13 10:14:16 +00:00
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.ycm_extra_conf.py [ycm] Fix python script 2021-07-29 09:48:32 +00:00
AUTHORS [deserialization] Remove unnecessarily limit on buffer size 2021-09-27 11:23:18 +00:00
BUILD.bazel [snapshots] Add a new snapshot for shared heap objects 2021-10-08 23:24:58 +00:00
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README.md

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.