Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 37c77f48561ad37be5e08424748d81a23f503040
https://github.com/WebKit/WebKit/commit/37c77f48561ad37be5e08424748d81a23f503040
Author: Rose <[email protected]>
Date: 2023-11-01 (Wed, 01 Nov 2023)
Changed paths:
M Source/JavaScriptCore/b3/B3ReduceStrength.cpp
M Source/WTF/wtf/MathExtras.h
Log Message:
-----------
[WTF] Remove countTrailingZeros
https://bugs.webkit.org/show_bug.cgi?id=264041
Reviewed by Yusuke Suzuki.
In addition to being redundant because of ctz existing, the lookup table
in itself is slower due to the operations happening to the variable v
before retrieving the value. Source: https://godbolt.org/z/Pnd9nPPbo
* Source/JavaScriptCore/b3/B3ReduceStrength.cpp: Switch to WTF:ctz.
* Source/WTF/wtf/MathExtras.h:
(WTF::countTrailingZeros): Deleted.
Canonical link: https://commits.webkit.org/270076@main
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