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

[Matt Arsenault via llvm-commits]

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@@ -1630,6 +1631,22 @@ getIntegerVecAttribute(const Function &F, StringRef Name, unsigned Size) {
   return Vals;
 }
 
+bool hasValueInRange(const MDNode *MD, unsigned Val) {
+  if (!MD)
+    return false;
+
+  assert((MD->getNumOperands() % 2 == 0) && "invalid number of operands!");
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arsenm wrote:

This should already be checked by the IR verifier

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