[llvm] [NVPTX] Add prefetch tensormap variant (PR #146203)

[Alex MacLean via llvm-commits]

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@@ -744,35 +750,50 @@ foreach dim = [1, 2, 3, 4, 5] in {
   }
 }
 
-//Prefetch and Prefetchu 
+//Prefetchu and Prefetch
+
+class PREFETCH_CONST_CHK<dag frag>
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AlexMaclean wrote:

Can these pattern and instruction definitions be folded into a mutli-class? 

https://github.com/llvm/llvm-project/pull/146203