[llvm-branch-commits] [llvm] backport: [RISCV] Sources of vmerge shouldn't overlap V0 (#170070) (PR #170604)

[Luke Lau via llvm-branch-commits]

lukel97 wrote:

> @lukel97 @wangpc-pp Is the change to RISCVInstrInfoVPseudos.td enough to fix the bug? Was the RISCVVectorPeephole.cpp part for correctness or to prevent regressions?

The RISCVInstrInfoVPseudos.td changes are enough to fix the bug, RISCVVectorPeephole.cpp is to fix regressions caused by the tablegen changes. We can probably live with the regressions we only backport the former.

https://github.com/llvm/llvm-project/pull/170604