Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 19670468f09f322518f5f19bd980ebbc2c3c7faa
https://github.com/WebKit/WebKit/commit/19670468f09f322518f5f19bd980ebbc2c3c7faa
Author: Angelos Oikonomopoulos <[email protected]>
Date: 2024-10-31 (Thu, 31 Oct 2024)
Changed paths:
M Source/JavaScriptCore/assembler/MacroAssemblerARMv7.h
Log Message:
-----------
ARMv7: Don't emit lsl/asr by zero
https://bugs.webkit.org/show_bug.cgi?id=282391
Reviewed by Justin Michaud.
Zero is not a valid shift amount for those instructions (it is for lsl).
In fact, it encodes a different instruction.
If the shift amount is 32 or higher, we'd end up emitting those forms.
Convert the shift to a move instead.
* Source/JavaScriptCore/assembler/MacroAssemblerARMv7.h:
(JSC::MacroAssemblerARMv7::rshift32):
(JSC::MacroAssemblerARMv7::urshift32):
Canonical link: https://commits.webkit.org/285970@main
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