[clang] [llvm] [mlir] [NVPTX] Add support for Shared Cluster Memory address space. (PR #135444)

[Alex MacLean via cfe-commits]

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@@ -2038,15 +2038,15 @@ multiclass F_ATOMIC_2_AS<RegTyInfo t, SDPatternOperator frag, string op_str, lis
   defvar frag_pat = (frag node:$a, node:$b);
   defm _G : F_ATOMIC_2<t, "", ".global", op_str, ATOMIC_GLOBAL_CHK<frag_pat>, preds>;
   defm _S : F_ATOMIC_2<t, "", ".shared", op_str, ATOMIC_SHARED_CHK<frag_pat>, preds>;
-  defm _DS : F_ATOMIC_2<t, "", ".shared::cluster", op_str, ATOMIC_DSHARED_CHK<frag_pat>, !listconcat([hasSM<80>], preds)>;
+  defm _S_C : F_ATOMIC_2<t, "", ".shared::cluster", op_str, ATOMIC_SHARED_CLUSTER_CHK<frag_pat>, !listconcat([hasSM<80>], preds)>;
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AlexMaclean wrote:

The PTX doc seems to say this is supported only for sm_90 and ptx_78

https://github.com/llvm/llvm-project/pull/135444