[llvm] [AMDGPU] Check noalias.addrspace in mayAccessScratchThroughFlat (PR #151319)

[Matt Arsenault via llvm-commits]

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@@ -1058,6 +1059,10 @@ SmallVector<unsigned> getIntegerVecAttribute(const Function &F, StringRef Name,
 std::optional<SmallVector<unsigned>>
 getIntegerVecAttribute(const Function &F, StringRef Name, unsigned Size);
 
+/// Checks if \p Val is inside \p MD, a !range-like metadata.
+/// Returns false if \p MD is null.
+bool hasValueInRange(const MDNode *MD, unsigned Val);
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arsenm wrote:

```suggestion
bool hasValueInRange(const MDNode *MD, int64_t Val);
```

Name seems too generalized; maybe hasValueInRangeLikeMetadata?

https://github.com/llvm/llvm-project/pull/151319