[MC,X86] De-virtualize emitPrefix#97008

MaskRay merged 1 commit intomainllvm/llvm-project:mainfrom

users/MaskRay/spr/mcx86-de-virtualize-emitprefixllvm/llvm-project:users/MaskRay/spr/mcx86-de-virtualize-emitprefixCopy head branch name to clipboard