[llvm] [NVPTX] Vectorize loads when lowering of byval calls, misc. cleanup (PR #151070)

[Alex MacLean via llvm-commits]

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@@ -382,6 +382,51 @@ static void ComputePTXValueVTs(const TargetLowering &TLI, const DataLayout &DL,
   }
 }
 
+static EVT getVectorizedVT(EVT VT, unsigned N, LLVMContext &C) {
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AlexMaclean wrote:

Nice. Switched to doing it like this.

https://github.com/llvm/llvm-project/pull/151070