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...ev/2010-September/034781.html , and the follow up emails. If you think it might be useful and have any questions I'd be happy to help. Cheers, Lang. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20101202/ccc325d1/attachment.html>

Jeff thanks for those suggestions, that's exactly what i would like to do, however i dont know how to do it with my current knowledge :\ As far as i understand patterns only take one instruction as an input (while the pattern you wrote before takes two) and also, i dont know how to handle register copying (COPY) in the .td file because they're handled in a different way to the rest of