[clang] [llvm] [NVPTX] Fix v2i8 call lowering, use generic ld/st nodes for call params (PR #146930)

[Princeton Ferro via llvm-commits]

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@@ -5754,47 +5540,106 @@ static SDValue combineADDRSPACECAST(SDNode *N,
   return SDValue();
 }
 
+static SDValue sinkProxyReg(SDValue R, SDValue Chain,
+                            TargetLowering::DAGCombinerInfo &DCI) {
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Prince781 wrote:

Can you document this function with a comment?

https://github.com/llvm/llvm-project/pull/146930