[llvm] Attributor: Add noalias.addrspace attribute for store and load (PR #136553)

[Shilei Tian via llvm-commits]

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@@ -1372,7 +1372,7 @@ static bool runImpl(Module &M, AnalysisGetter &AG, TargetMachine &TM,
   LLVM_DEBUG(dbgs() << "[AMDGPUAttributor] Module " << M.getName() << " is "
                     << (AC.IsClosedWorldModule ? "" : "not ")
                     << "assumed to be a closed world.\n");
-
+  uint32_t AddrSpaceMask = (1 << (AMDGPUAS::MAX_AMDGPU_ADDRESS + 1)) - 1;
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shiltian wrote:

`constexpr const`?

https://github.com/llvm/llvm-project/pull/136553