[TRI][RISCV] Add methods to get common register class of two registers#118435

wangpc-pp merged 4 commits intollvm:mainllvm/llvm-project:mainfrom

wangpc-pp:main-riscv-getMinimalPhysRegClass-two-regswangpc-pp/llvm-project:main-riscv-getMinimalPhysRegClass-two-regsCopy head branch name to clipboard