llvm-project

e9a20f77 - Reland "[LV]: Teach LV to recursively (de)interleave." (#125094)

Reland "[LV]: Teach LV to recursively (de)interleave." (#125094) This patch relands the changes from "[LV]: Teach LV to recursively (de)interleave.#122989" Reason for revert: - The patch exposed an assert in the vectorizer related to VF difference between legacy cost model and VPlan-based cost model because of uncalculated cost for VPInstruction which is created by VPlanTransforms as a replacement to 'or disjoint' instruction. VPlanTransforms do that instructions change when there are memory interleaving and predicated blocks, but that change didn't cause problems because at most cases the cost difference between legacy/new models is not noticeable. - Issue is fixed by #125434 Original patch: https://github.com/llvm/llvm-project/pull/89018 Reviewed-by: paulwalker-arm, Mel-Chen