[llvm] [PM] Execute IndVarSimplifyPass precede RessociatePass (PR #71054)

[via llvm-commits]

erickq wrote:

> Could you add some performance data backing up the benefits of the change? Adding additional runs of IndVars likely also impacts compile time which needs to be evaluated also.

Are you referring to the SPEC performance change? I may not be able to get it because I don't have a sve machine.

https://github.com/llvm/llvm-project/pull/71054