[llvm] [AArch64][SME] Resume streaming-mode on entry to exception handlers (PR #156638)

[Sander de Smalen via llvm-commits]

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@@ -4686,6 +4686,13 @@ class LLVM_ABI TargetLowering : public TargetLoweringBase {
     llvm_unreachable("Not Implemented");
   }
 
+  /// Optional target hook at add target-specific actions when entering EH pad
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sdesmalen-arm wrote:

```suggestion
  /// Optional target hook to add target-specific actions when entering EH pad
```

https://github.com/llvm/llvm-project/pull/156638