[llvm] [AMDGPU] Correctly merge noalias scopes during lowering of LDS data. (PR #131664)

[Sirish Pande via llvm-commits]

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@@ -114,17 +114,26 @@ static void collectMDInDomain(const MDNode *List, const MDNode *Domain,
         Nodes.insert(MD);
 }
 
+/// Collect the set of scoped domains relevant to the noalias scopes.
+void ScopedNoAliasAAResult::collectScopedDomains(
+    const MDNode *NoAlias, SmallPtrSetImpl<const MDNode *> &Domains) const {
+  if (!NoAlias)
+    return;
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srpande wrote:

NoAlias is checked as a null check in line 131. Changing this here would require to change multiple other places unrelated to this patch.

https://github.com/llvm/llvm-project/pull/131664