[Webkit-unassigned] [Bug 133394] New: fix arm64 css jit

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=133394

           Summary: fix arm64 css jit
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: achristensen at apple.com
                CC: benjamin at webkit.org


The arm64 css jit could use a deallocated argument register to swap the argument registers in, which would generate invalid code.  To prevent this, let's use a designated temporary register for now because we have a plentiful supply of registers, then we can do better register organization later.

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