[llvm] [LLVM][NVPTX] Add support for tensormap.cp_fenceproxy (PR #107555)

[Gautam Chakrabarti via llvm-commits]

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@@ -311,7 +311,37 @@ The ``@llvm.nvvm.fence.proxy.tensormap_generic.*`` is a uni-directional fence us
   ``@llvm.nvvm.fence.proxy.tensormap_generic.acquire.*`` ``fence.proxy.tensormap::generic.acquire.* [addr], size``
   ====================================================== =========================================================
 
-The address operand ``addr`` and the operand ``size`` together specify the memory range ``[addr, addr+size)`` on which the ordering guarantees on the memory accesses across the proxies is to be provided. The only supported value for the ``size`` operand is ``128`` and must be an immediate. Generic Addressing is used unconditionally, and the address specified by the operand addr must fall within the ``.global`` state space. Otherwise, the behavior is undefined. For more information, see `PTX ISA <https://docs.nvidia.com/cuda/parallel-thread-execution/#parallel-synchronization-and-communication-instructions-membar>`_.
+The address operand ``addr`` and the operand ``size`` together specify the memory range ``[addr, addr+size)`` on which the ordering guarantees on the memory accesses across the proxies is to be provided. The only supported value for the ``size`` operand is ``128`` and must be an immediate. Generic Addressing is used unconditionally, and the address specified by the operand addr must fall within the ``.global`` state space. Otherwise, the behavior is undefined. For more information, see PTX ISA `<https://docs.nvidia.com/cuda/parallel-thread-execution/#parallel-synchronization-and-communication-instructions-membar>`_.
+
+'``llvm.nvvm.tensormap.cp_fenceproxy.global.shared.tensormap_generic.release.*.sync.aligned``'
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gchak wrote:

If we are choosing between the options of abbreviating or omitting fields, I would vote for omitting. You suggested dropping `global.shared`. Should we also drop `sync.aligned` and just define it this way as this is always `sync` and `aligned`?

https://github.com/llvm/llvm-project/pull/107555