[llvm-branch-commits] [clang] clang/AMDGPU: Set noalias.addrspace metadata on atomicrmw (PR #102462)

[Matt Arsenault via llvm-branch-commits]

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@@ -647,6 +647,14 @@ class LangOptions : public LangOptionsBase {
     return ConvergentFunctions;
   }
 
+  /// Return true if atomicrmw operations targeting allocations in private
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arsenm wrote:

This has nothing to do with the target, this is language semantics. What the target natively supports is an incomprehensibly complicated question, and is a legalization issue. We could annotate some operations with this in infer address spaces, but there's only a few cases where it's probably useful there 

https://github.com/llvm/llvm-project/pull/102462