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78c64c2e1c
While various DAG combines try to guarantee that a vector SETCC operation will have the same output size as input, there's nothing intrinsic to either creation or LegalizeTypes that actually guarantees it, so the function needs to be ready to handle a mismatch. Fortunately this is easy enough, just extend or truncate the naturally compared result. I couldn't reproduce the failure in other backends that I know have SIMD, so it's probably only an issue for these two due to shared heritage. Should fix PR21645. llvm-svn: 228518
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