[llvm] [RISCV] Introduce VLOptimizer pass (PR #108640)

[Michael Maitland via llvm-commits]

michaelmaitland wrote:

> First, I want to explicitly say again that I'd welcome this iteration happening in tree.

If everyone is on board for this approach, I think that would be good. But I want to highlight here that I think the test coverage is not in a place where I'd feel comfortable to enabling this pass by default. I think this is a must have before turning it on.

https://github.com/llvm/llvm-project/pull/108640