[llvm] [Offload] Add MPI Proxy Plugin (PR #114574)

[Joseph Huber via llvm-commits]

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@@ -6,6 +6,7 @@
 // UNSUPPORTED: amdgcn-amd-amdhsa
 // UNSUPPORTED: nvptx64-nvidia-cuda
 // UNSUPPORTED: nvptx64-nvidia-cuda-LTO
+// UNSUPPORTED: nvptx64-nvidia-cuda-mpi
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jhuber6 wrote:

I know it's building off of existing stuff, but this really isn't the way. We need a single feature called `mpi`.

https://github.com/llvm/llvm-project/pull/114574