[llvm] [AArch64] Consider StreamingSVE in shouldExpandGetActiveLaneMask (PR #144722)

[Paul Walker via llvm-commits]

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@@ -18099,7 +18101,8 @@ performActiveLaneMaskCombine(SDNode *N, TargetLowering::DAGCombinerInfo &DCI,
                                                 /*IsEqual=*/false))
     return While;
 
-  if (!ST->hasSVE2p1() && !(ST->hasSME2() && ST->isStreaming()))
+  if (!N->getValueType(0).isScalableVT() ||
----------------
paulwalker-arm wrote:

```suggestion
  if (!N->getValueType(0).isScalableVector() ||
```

https://github.com/llvm/llvm-project/pull/144722