[llvm] [LLVM][NVPTX] Add NVPTX codegen support for clusterlaunchcontrol instruction (PR #134568)

[Durgadoss R via llvm-commits]

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@@ -112,6 +112,20 @@ class NVPTXSubtarget : public NVPTXGenSubtargetInfo {
     return HasTcgen05 && PTXVersion >= 86;
   }
 
+  bool hasBlackwellArch() const {
+    auto HasSM = [&]() {
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durga4github wrote:

HasRequiredSM might be a better name for this boolean.

https://github.com/llvm/llvm-project/pull/134568