[llvm] [DAG] Reducing instructions by better legalization handling of AVGFLOORU for i128 data types (PR #99913)

[Simon Pilgrim via llvm-commits]

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@@ -9352,6 +9353,27 @@ SDValue TargetLowering::expandAVG(SDNode *N, SelectionDAG &DAG) const {
     }
   }
 
+  if (Opc == ISD::AVGFLOORU && SVT == MVT::i128) {
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RKSimon wrote:

Don't limit this to i128 - better off using a !isTypeLegal(VT) check

https://github.com/llvm/llvm-project/pull/99913