[Webkit-unassigned] [Bug 22867] New: Add support to X86Assembler emitting instructions that access all 16 registers on x86-64.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=22867

           Summary: Add support to X86Assembler emitting instructions that
                    access all 16 registers on x86-64.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: barraclough at apple.com


Add a new formating class, that is reponsible for both emitting the opcode
bytes and the ModRm  bytes of an instruction in a single call; this can insert
the REX byte as necessary before the opcode, but has access to the register
numbers to build the REX.


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