[Webkit-unassigned] [Bug 227563] New: Fix instruction check failure of UBFX and SBFIZ in testb3 due to the speculative fix in bug 227554

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Jun 30 20:32:45 PDT 2021


https://bugs.webkit.org/show_bug.cgi?id=227563

            Bug ID: 227563
           Summary: Fix instruction check failure of UBFX and SBFIZ in
                    testb3 due to the speculative fix in bug 227554
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: yijia_huang at apple.com

https://bugs.webkit.org/show_bug.cgi?id=227554 This speculative fix actually disables the pattern matches of UBFX, BFI, and SBFIZ. This patch will fix the instruction check failures in testb3 for those instruction pattern matches on ToT.

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