commit | 6a62d88e9b7ee9bafa169209684dc5c27f1fd58e | [log] [tgz] |
---|---|---|
author | Leszek Swirski <leszeks@chromium.org> | Tue Aug 14 08:23:06 2018 |
committer | Commit Bot <commit-bot@chromium.org> | Tue Aug 14 08:25:24 2018 |
tree | 0a9a9ffa81937b4f90460ac6e99127a0bcdb1192 | |
parent | 3e545e404525540ada1c3ce3aacaab902150324e [diff] |
Revert "[turbofan] Further optimize DataView accesses." This reverts commit c46915b931ed533ddfca1405660115e772eb7e70. Reason for revert: Disasm failures https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20debug/21727 Original change's description: > [turbofan] Further optimize DataView accesses. > > This adds support for unaligned load/store access to the DataView > backing store and uses byteswap operations to fix up the endianess > when necessary. This changes the Word32ReverseBytes operator to be > a required operator and adds the missing support on the Intel and > ARM platforms (on 64-bit platforms the Word64ReverseBytes operator > is also mandatory now). > > This further improves the performance on the dataviewperf.js test > mentioned in the tracking bug by up to 40%, and at the same time > reduces the code complexity in the EffectControlLinearizer. > > Bug: chromium:225811 > Change-Id: I296170b828c2ccc1c317ed37840b564aa14cdec2 > Reviewed-on: https://chromium-review.googlesource.com/1172777 > Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> > Reviewed-by: Sigurd Schneider <sigurds@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55099} TBR=sigurds@chromium.org,bmeurer@chromium.org Change-Id: If7a62e3a1a4ad26823fcbd2ab6eb4c053ad11c49 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: chromium:225811 Reviewed-on: https://chromium-review.googlesource.com/1174171 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#55107}
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
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/*
Please follow the instructions mentioned on the V8 wiki.