Branch: refs/heads/webkitglib/2.48
Home: https://github.com/WebKit/WebKit
Commit: 99b9097c45718c9c4237a7945da517cea4fd7357
https://github.com/WebKit/WebKit/commit/99b9097c45718c9c4237a7945da517cea4fd7357
Author: Chris Dumez <cdu...@apple.com>
Date: 2025-04-26 (Sat, 26 Apr 2025)
Changed paths:
M Source/WTF/wtf/UnalignedAccess.h
Log Message:
-----------
Cherry-pick 293754@main (2c0038e9d995).
https://bugs.webkit.org/show_bug.cgi?id=290013
REGRESSION (288265@main): [ macOS wk1 debug ]
inspector/console/console-oom.html is a consistent timeout
https://bugs.webkit.org/show_bug.cgi?id=291598
rdar://149340500
Reviewed by Ryosuke Niwa.
The changes to UnalignedAccess.h made in 288265@main made the test runtime
go from
30-50s to ~175s in debug builds (no ovbious regression on release builds
but the
runtime is much shorter there 2-3s).
Given that these functions in UnalignedAccess.h currently take a raw
`void*` pointer
and no size, using memcpySpan() instead of memcpy() doesn't actually
improve safety
here. I am therefore reverting the changes I made to UnalignedAccess.h.
It appears a lot of the CPY cycles were spent under `unsafeMakeSpan()`.
* LayoutTests/platform/mac-wk1/TestExpectations:
* Source/WTF/wtf/UnalignedAccess.h:
(WTF::unalignedLoad):
(WTF::unalignedStore):
Canonical link: https://commits.webkit.org/293754@main
Canonical link: https://commits.webkit.org/290945.163@webkitglib/2.48
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