[llvm] [TableGen] Split large printInstruction() for NVPTX to avoid compiler limits (PR #218530)

[Alexis Engelke via llvm-commits]

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aengelke wrote:

DenseMap, maybe even of type StringRef if possible. Generally avoid std::map and std::set unless stable iteration/references are needed.

https://github.com/llvm/llvm-project/pull/218530