llvm-project

0768068f - [VPlan] Remove ExtractLastLane for plans with scalar VFs. (#171145)

[VPlan] Remove ExtractLastLane for plans with scalar VFs. (#171145) ExtractLastLane is a no-op for scalar VFs. Update simplifyRecipe to remove them. This also requires adjusting the code in VPlanUnroll.cpp to split off handling of ExtractLastLane/ExtractPenultimateElement for scalar VFs, which now needs to match ExtractLastPart. PR: https://github.com/llvm/llvm-project/pull/171145