[llvm] [LV] Run VPlan licm late in executePlan (PR #181122)

[Ramkumar Ramachandra via llvm-commits]

artagnon wrote:

> Is there much benefit to doing this after the cost is computed? I think we already run regular LICMPass after LoopVectorizer in the default pipeline

Hm, interesting. I didn't realize that LICM was run without ExtraVectorizerPasses, but double-checked now.

https://github.com/llvm/llvm-project/pull/181122