[llvm] [indvars] Missing variables at Og (PR #88270)

[Carlos Alberto Enciso via llvm-commits]

CarlosAlbertoEnciso wrote:

> I've not reviewed this in depth yet - just left some first-pass comments (one surface level, one more important asking about why this needs to be a multi-pass fix).

The main discussion is here:
https://github.com/llvm/llvm-project/pull/69920#issuecomment-1905988593

If you prefer, I can elaborate more if is not clear.

https://github.com/llvm/llvm-project/pull/88270