llvm-project

17f98baf - [LV] Add test with users both demanding all lanes and first-lane-only.

[LV] Add test with users both demanding all lanes and first-lane-only. Add a test case where scalar steps are used by both a VPReplicateRecipe (demands all scalar lanes) and a VPInstruction that only demands the first lane. Test case for https://github.com/llvm/llvm-project/issues/88849.