Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: a2a6f364bf50b6dae494c5d6c8aebdec284c965a
https://github.com/WebKit/WebKit/commit/a2a6f364bf50b6dae494c5d6c8aebdec284c965a
Author: Keith Miller <[email protected]>
Date: 2026-09-16 (Wed, 16 Sep 2026)
Changed paths:
M Configurations/CommonBase.xcconfig
M Source/ThirdParty/ANGLE/Configurations/ANGLEDeqp.xcconfig
M Source/cmake/WebKitCompilerFlags.cmake
Log Message:
-----------
Pass -fwrapv by default
https://bugs.webkit.org/show_bug.cgi?id=324351
rdar://187581116
Reviewed by Yusuke Suzuki.
By default, signed integer overflow is UB in C family languages. In
theory this allows the compiler to do extra optimizations. In practice,
we don't rely on any of those optimizations. Worrying about the UB is
annoying so we should just force GCC/Clang to treat signed overflow as
two's compliment. This is perf neutral on all our benchmarks.
* Configurations/CommonBase.xcconfig:
* Source/ThirdParty/ANGLE/Configurations/ANGLEDeqp.xcconfig:
Remove independent -fwrapv setting.
* Source/cmake/WebKitCompilerFlags.cmake:
Canonical link: https://commits.webkit.org/321265@main
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