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Is it just an optimization pass? Maybe I can cancel it somehow with a flag or by doing some code editing? Can you point me to which passes may do that? I'm working on editing a backend that can't work with anything larger than 32 bits. Does the legalize stage work on IR code? Maybe i can use that? On Jan 29, 2015 5:41 AM, Ruiling Song <ruiling.song83 at gmail.com> wrote: LLVM