[llvm] [NVPTX] Lower v1 EX2 intrinsics (PR #223622)

[Durgadoss R via llvm-commits]

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@@ -1168,10 +1166,12 @@ NVPTXTargetLowering::NVPTXTargetLowering(const NVPTXTargetMachine &TM,
   // Enable custom lowering for the following:
   //   * MVT::i128 - clusterlaunchcontrol
   //   * MVT::i32 - prmt
+  //   * MVT::v1f32 - ex2
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durga4github wrote:

On the motivation for this change,
are we doing it to avoid a bitcast in MLIR?

https://github.com/llvm/llvm-project/pull/223622