[llvm] [LoongArch][GlobalISel] Adding initial GlobalISel infrastructure (PR #116005)

[Lu Weining via llvm-commits]

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+//=- LoongArchRegisterBank.td - Describe the LoongArch Banks -*- tablegen -*-=//
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SixWeining wrote:

LoongArchRegisterBanks.td

https://github.com/llvm/llvm-project/pull/116005