[llvm-dev] SETCC ISD node question

[Craig Topper via llvm-dev]

Should SETCC result types and input types always have the same number of
vector elements or both be scalar?

I ask because it appears DAGTypeLegalizer::WidenVSELECTAndMask can create a
setcc where this isn't true.

I've instrumented getNode with asserts to check the types of SETCC and I'm
failing on at least these tests

    LLVM :: CodeGen/SystemZ/vec-cmp-cmp-logic-select.ll
    LLVM :: CodeGen/SystemZ/vec-cmpsel.ll

~Craig
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