[llvm-branch-commits] [llvm] [RISCV] Support i64 accumulator for Zvdot4a8i partial reductions (PR #215517)

[Philip Reames via llvm-branch-commits]

https://github.com/preames commented:

Would you mind splitting the cost (and LV test) off into a separate PR?  For one thing, you need CostModel tests for it.  The codegen is looking close to good to go.  

https://github.com/llvm/llvm-project/pull/215517