[llvm] [VPlan] Run CSE closer to VPlan::execute. (PR #160572)

[Ramkumar Ramachandra via llvm-commits]

https://github.com/artagnon commented:

Does this rely on removeDeadRecipes being run on line 7271? If so, perhaps we can move it after simplifyRecipes on line 7245, with no changes?

https://github.com/llvm/llvm-project/pull/160572