arsenm wrote: > Isn't the condition in code in terms of VecIn.size() == 2? I believe that > VecIn is the _unique_ input elements, right? Which is distinct from the > number of elements in the destination type? (Am I just misreading? I only > skimmed this.)
VecIn is collecting only extract_vector_elts feeding the build_vector. So it's true it's not only a 2 element vector, in general (but the standard case of building a complete vector is 2 elements). The other skipped elements are all constant or undef. A 2 element shuffle just happens to the only case I care about which I'm trying to make legal (and really only the odd -> even case is of any use). https://github.com/llvm/llvm-project/pull/122672 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
