Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: a6fdfba9ecedf5bd261c65fda1de8c795dc6a053
https://github.com/WebKit/WebKit/commit/a6fdfba9ecedf5bd261c65fda1de8c795dc6a053
Author: Kristina Bessonova <[email protected]>
Date: 2024-02-20 (Tue, 20 Feb 2024)
Changed paths:
M Source/JavaScriptCore/heap/GCMemoryOperations.h
Log Message:
-----------
[JSC] Add missed "cc" inline asm clobber to ARM64 memory operations
https://bugs.webkit.org/show_bug.cgi?id=269785
Reviewed by Keith Miller.
Since inline asm touches flags, it should set "cc" clobber to ensure
a compiler will schedule instructions correctly.
W/o the clobber and if compiled with clang v16 and newer (AArch64,
Linux) may lead to a crash inside JSArray::unshiftCountSlowCase().
* Source/JavaScriptCore/heap/GCMemoryOperations.h:
(JSC::gcSafeMemcpy):
(JSC::gcSafeMemmove):
(JSC::gcSafeZeroMemory):
Canonical link: https://commits.webkit.org/275057@main
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