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

[Shilei Tian 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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shiltian wrote:

Do we want to have a check in target machine to tell if atomic operation on specific address space is legal? I'm thinking of adding atomic support in `AAAddressSpace`, and could drop the address space if an atomic operation in an inferred address space is not legal.

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