[llvm] [AArch64] Improve index selection for histograms (PR #111150)

[Benjamin Maxwell via llvm-commits]

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@@ -24093,8 +24092,9 @@ static SDValue performMaskedGatherScatterCombine(
   SDValue BasePtr = MGS->getBasePtr();
   ISD::MemIndexType IndexType = MGS->getIndexType();
 
-  if (!findMoreOptimalIndexType(MGS, BasePtr, Index, DAG))
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MacDue wrote:

and this too

https://github.com/llvm/llvm-project/pull/111150