[llvm] [RISCV] Improve getInterleavedMemoryOpCost for interleave groups with tail gaps. (PR #192074)

[Andrei Elovikov via llvm-commits]

https://github.com/eas commented:

Is it possible to add a test under `Analysis/CostModel` for this?

https://github.com/llvm/llvm-project/pull/192074