[llvm] [NVPTX] Enhance `mul.wide` and `mad.wide` peepholes (PR #150477)

[Alex MacLean via llvm-commits]

================
@@ -5930,6 +5977,10 @@ SDValue NVPTXTargetLowering::PerformDAGCombine(SDNode *N,
     return combineADDRSPACECAST(N, DCI);
   case ISD::AND:
     return PerformANDCombine(N, DCI);
+  case ISD::ANY_EXTEND:
----------------
AlexMaclean wrote:

Is there any test cases which cover the ANY_EXTEND case? If we can't construct IR to hit this case, I'd just go ahead and remove it.

https://github.com/llvm/llvm-project/pull/150477