[llvm] [RISCV] Add isel patterns for generating XAndesPerf branch immediate instructions (PR #145147)

[Jim Lin via llvm-commits]

tclin914 wrote:

> CodeGen/RISCV/short-forward-branch-opt.ll

Thanks. I forgot to rebase to the latest main branch. That why CodeGen/RISCV/short-forward-branch-opt.ll is failing.

https://github.com/llvm/llvm-project/pull/145147