[llvm-commits] [PATCH] extend fix to PR12312 to support 256-bit vector

[Duncan Sands]

Hi Michael,

> --- a/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp
> +++ b/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp
> @@ -108,6 +108,47 @@ void DAGTypeLegalizer::ExpandRes_BITCAST(SDNode *N, SDValue &Lo, SDValue &Hi) {
>
>        return;
>      }
> +
> +    // If <NOutVT x 2> is not a legal type, try <ExtOutVT x (2*f)>, where
> +    // f = bits(NOutVT)/bits(ExtOutVT).
> +    EVT ExtOutVT = TLI.getTypeToExpandTo(*DAG.getContext(), OutVT);

I'm confused - isn't ExtOutVT equal to NOutVT?

Ciao, Duncan.