[LLVMdev] REX prefix is not handled properly for X86_64?

[Jun Koi]

Hi,

Intel's Xed can interpret "43 40 04 75" as "add al, 0x75", but LLVM's X86
disassembler considers this invalid code. I guess the reason is that LLVM
fails to recognize the REX prefix in this case.

Is this correct?

Thanks.
Jun
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