[llvm] [NVPTX] legalize v2i32 to improve compatibility with v2f32 (PR #153478)

[Durgadoss R via llvm-commits]

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@@ -2717,6 +2776,26 @@ static SDValue lowerPrmtIntrinsic(SDValue Op, SelectionDAG &DAG) {
   SDValue Selector = (Op->op_end() - 1)->get();
   return getPRMT(A, B, Selector, DL, DAG, Mode);
 }
+
+static SDValue lowerIntrinsicWChain(SDValue Op, SelectionDAG &DAG) {
+  switch (Op->getConstantOperandVal(1)) {
+  default:
+    return Op;
+
+  case Intrinsic::nvvm_tcgen05_ld_16x64b_x2:
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durga4github wrote:

Let us add a comment here on why only these set of tcgen05-ld intrinsics (and not the others) require the extra lowering here. 
(Currently it is clear but it will be good to have a note for the future)

https://github.com/llvm/llvm-project/pull/153478