[llvm] [TTI] Remove masked/gather-scatter/strided/expand-compress costing from TTIImpl (PR #169885)

[Philip Reames via llvm-commits]

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@@ -238,11 +252,10 @@ HexagonTTIImpl::getShuffleCost(TTI::ShuffleKind Kind, VectorType *DstTy,
   return 1;
 }
 
-InstructionCost HexagonTTIImpl::getGatherScatterOpCost(
-    unsigned Opcode, Type *DataTy, const Value *Ptr, bool VariableMask,
-    Align Alignment, TTI::TargetCostKind CostKind, const Instruction *I) const {
-  return BaseT::getGatherScatterOpCost(Opcode, DataTy, Ptr, VariableMask,
-                                       Alignment, CostKind, I);
+InstructionCost
+HexagonTTIImpl::getGatherScatterOpCost(const MemIntrinsicCostAttributes &MICA,
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preames wrote:

Can you do this API change in a prior change?  It would reduce the mechanical part of the diff here significantly.  Happy to review if you want to put it up and tag me.  

https://github.com/llvm/llvm-project/pull/169885