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

[Matt Arsenault via llvm-commits]

================
@@ -1424,14 +1425,12 @@ class AMDGPULowerModuleLDS {
 
       Align A =
           commonAlignment(Replacement.SGV->getAlign().valueOrOne(), Offset);
-
       if (I)
         NoAliasList[I - 1] = AliasScopes[I - 1];
       MDNode *NoAlias =
           NoAliasList.empty() ? nullptr : MDNode::get(Ctx, NoAliasList);
       MDNode *AliasScope =
           AliasScopes.empty() ? nullptr : MDNode::get(Ctx, {AliasScopes[I]});
-
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arsenm wrote:

Unrelated whitespace change 

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