[llvm] [AArch64,TTI] Remove RealUse check for vector insert/extract costs. (PR #146526)

[Florian Hahn via llvm-commits]

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@@ -3887,25 +3885,24 @@ InstructionCost AArch64TTIImpl::getVectorInstrCost(unsigned Opcode, Type *Val,
                                                    unsigned Index,
                                                    const Value *Op0,
                                                    const Value *Op1) const {
-  bool HasRealUse =
-      Opcode == Instruction::InsertElement && Op0 && !isa<UndefValue>(Op0);
-  return getVectorInstrCostHelper(Opcode, Val, CostKind, Index, HasRealUse);
+  if (Index == 0 && Op0 && isa<PoisonValue>(Op0))
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fhahn wrote:

Added, thanks

https://github.com/llvm/llvm-project/pull/146526