[llvm] [LLVM][NVPTX] Add movmatrix intrinsic and PTX instruction support (PR #190109)

[Alex MacLean via llvm-commits]

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@@ -3936,6 +3936,34 @@ an event.
 For more information on the pmevent instructions, refer to the `PTX ISA
 <https://docs.nvidia.com/cuda/parallel-thread-execution/index.html#miscellaneous-instructions-pmevent>`__.
 
+movmatrix Intrinsics
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AlexMaclean wrote:

This category seems a little too narrow. Maybe we should follow PTX and define something like "warp level matrix for mma Intrinsics" https://docs.nvidia.com/cuda/parallel-thread-execution/#warp-level-matrix-instructions-for-mma

https://github.com/llvm/llvm-project/pull/190109