[llvm] [AArch64][SelectionDAG] Add CodeGen support for scalar FEAT_CPA (PR #105669)

[Alexander Richardson via llvm-commits]

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@@ -1072,7 +1072,8 @@ class SelectionDAG {
   SDValue getMemBasePlusOffset(SDValue Base, TypeSize Offset, const SDLoc &DL,
                                const SDNodeFlags Flags = SDNodeFlags());
   SDValue getMemBasePlusOffset(SDValue Base, SDValue Offset, const SDLoc &DL,
-                               const SDNodeFlags Flags = SDNodeFlags());
+                               const SDNodeFlags Flags = SDNodeFlags(),
+                               const bool Inverted = false);
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arichardson wrote:

```suggestion
                               const SDNodeFlags Flags = SDNodeFlags());
```

https://github.com/llvm/llvm-project/pull/105669