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Summary

  1. AMDGPU/GlobalISel: Add documentation for RegisterBankInfo (details)
Commit f6418d72f572ced8e1f58fc18fb973da1c956162 by arsenm2
AMDGPU/GlobalISel: Add documentation for RegisterBankInfo
Document some high level strategies that should be used for register
bank selection. The constant bus restriction section hasn't actually
been implemented yet.
The file was modifiedllvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp