Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 4cd0a027f2f945372a3fb438f8b53f71a5eee766
https://github.com/WebKit/WebKit/commit/4cd0a027f2f945372a3fb438f8b53f71a5eee766
Author: Yusuke Suzuki <[email protected]>
Date: 2025-04-25 (Fri, 25 Apr 2025)
Changed paths:
M Source/JavaScriptCore/assembler/testmasm.cpp
M Source/JavaScriptCore/b3/air/AirOpcode.opcodes
Log Message:
-----------
[JSC] Sign extension and sign extended load clears high bits
https://bugs.webkit.org/show_bug.cgi?id=292083
rdar://150074441
Reviewed by Yijia Huang.
After 293992@main change, we guarantee that upper bits of sign-extend
load will do zero clearing. So we should annotate AirOpcode.opcodes with
Zero-clear flag.
* Source/JavaScriptCore/assembler/testmasm.cpp:
(JSC::testSignExtend8To32):
(JSC::testSignExtend16To32):
(JSC::testLoadBaseIndex):
* Source/JavaScriptCore/b3/air/AirOpcode.opcodes:
Canonical link: https://commits.webkit.org/294145@main
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