Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 34a1f637714c4b88cb27cde64e9c1298a29276d2
https://github.com/WebKit/WebKit/commit/34a1f637714c4b88cb27cde64e9c1298a29276d2
Author: Yusuke Suzuki <ysuz...@apple.com>
Date: 2023-04-17 (Mon, 17 Apr 2023)
Changed paths:
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
M Source/JavaScriptCore/jit/AssemblyHelpers.cpp
Log Message:
-----------
[JSC] Use or64 since it can encode startOfStructureHeap in imm
https://bugs.webkit.org/show_bug.cgi?id=255570
rdar://108171748
Reviewed by Justin Michaud.
StructureAlignedMemoryAllocator ensures that we can compose Structure* with
StructureID with BitOr operation.
This patch changes add64 to or64 since or64 can encode bits more nicely in imm
field, removing one unnecessary `mov`.
* Source/JavaScriptCore/jit/AssemblyHelpers.cpp:
(JSC::AssemblyHelpers::emitNonNullDecodeZeroExtendedStructureID):
Canonical link: https://commits.webkit.org/263057@main
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