[llvm] [AArch64] Lower partial add reduction to udot or svdot (PR #101010)

[Sam Tebbs via llvm-commits]

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@@ -1590,6 +1590,11 @@ class SelectionDAG {
   /// the target's desired shift amount type.
   SDValue getShiftAmountOperand(EVT LHSTy, SDValue Op);
 
+  /// Expand a partial reduction intrinsic call.
+  /// Op1 and Op2 are its operands and ReducedTY is the intrinsic's return type.
+  SDValue expandPartialReductionIntrinsic(EVT ReducedTy, SDValue Op1,
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SamTebbs33 wrote:

`getPartialReduceAdd()` definitely fits the naming scheme of the rest of the functions in this file. Sounds good to me.

https://github.com/llvm/llvm-project/pull/101010