[llvm] [NVPTX] Add intrinsics and codegen for tensormap.replace (PR #172458)

[Durgadoss R via llvm-commits]

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@@ -3312,4 +3312,56 @@ foreach sp = [0, 1] in {
   }
 }
 
+//
+// tensormap.replace intrinsics
+//
+
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durga4github wrote:

Could you please add documentation in the rst file?

https://github.com/llvm/llvm-project/pull/172458