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

[Shilei Tian via llvm-commits]

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@@ -1390,9 +1390,17 @@ static bool runImpl(Module &M, AnalysisGetter &AG, TargetMachine &TM,
       if (auto *LI = dyn_cast<LoadInst>(&I)) {
         A.getOrCreateAAFor<AAAddressSpace>(
             IRPosition::value(*LI->getPointerOperand()));
+        const_cast<AANoAliasAddrSpace *>(
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shiltian wrote:

Well, I think the problem here is, you never know what the largest address space a target can have. For example, X86 even has p270 in their data layout.

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