https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113988
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #7) > I think I can handle it like the VIEW_CONVERT_EXPR case, bet with > _BitInt(511) it would actually be a VCE, but when it is same size > BITINT_TYPE to INTEGER_TYPE we choose NOP_EXPR. > That said, I think it would be better if the memcpy folding used say vector > types instead of these extra large integer types. Hmm. Maybe we want a target hook to specify the "move mode" for a given byte size and then we can use bitwise_type_for_mode to get a type? Maybe we can even get rid of that large integer mode requirement that way ...
