[llvm-branch-commits] [RISCV] Support non-power-of-2 types when expanding memcmp (PR #114971)

[Pengcheng Wang via llvm-branch-commits]

https://github.com/wangpc-pp created https://github.com/llvm/llvm-project/pull/114971

We can convert non-power-of-2 types into extended value types
and then they will be widen.