[llvm] [LoopStrengthReduce] Mitigation of issues introduced by compilation time optimization in SolveRecurse. (PR #147588)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

It looks like this patch combines multiple changes. Can these be split?

Just looking at the test diffs, it's not super clear that this is an improvement. A lot is just random changes, but there are also various regressions (at least in terms of instruction count, I haven't looked deeper).

https://github.com/llvm/llvm-project/pull/147588