craig.topper added inline comments. ================ Comment at: lib/Target/X86/X86InstrFragmentsSIMD.td:582 + SDTCisSameAs<1,2>, + SDTCVecEltisVT<0,i1>]>>; + ---------------- Should this have SDTCisSameNumEltsAs<0,1> as well? Repository: rL LLVM https://reviews.llvm.org/D40222