[llvm] [AArch64] Account for fixed-SVE high-lane insertelement/extractelement costs (PR #219244)

[Utpal Bora via llvm-commits]

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@@ -5744,12 +5759,16 @@ InstructionCost AArch64TTIImpl::getInterleavedMemoryOpCost(
   if (VecTy->isScalableTy() && !isPowerOf2_32(Factor))
     return InstructionCost::getInvalid();
 
+  auto MaxNativeInterleaveFactor = TLI->getMaxSupportedInterleaveFactor();
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utpalbora wrote:

Good point, updated.

https://github.com/llvm/llvm-project/pull/219244