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

[Durgadoss R via llvm-commits]

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

Can we name it something like: isBlackwellArchAccelerated or something similar ?

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