search for: match&transform

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2018 Dec 30
3
[cfe-dev] Portable multiplication 64 x 64 -> 128 for int128 reimplementation
...use inline assembly. MSVC provides an intrinsic for this instruction. >> This defeats the idea of portable int128 reimplementation and makes >> constexpr implementation of multiplication at least inconvenient. >> >> Maybe there is a hope for me in LLVM. Is there any pattern matcher that >> is producing MUL instruction of bigger type? >> If not, would it be good idea to teach LLVM about it? >> >> Bests, >> Paweł >> _______________________________________________ >> cfe-dev mailing list >> cfe-dev at lists.llvm.org >> http...