[llvm] [VPlan] Unroll VPReplicateRecipe by VF. (PR #142433)

[Mikael Holmén via llvm-commits]

mikaelholmen wrote:

> @sscalpone @mstorsjo thanks for sharing the additional test cases, in some cases we cannot yet convert all hoisted recipes to single-scalar VPReplicateRecipes after hoisting. Should be fixed by making sure we also unroll all VPReplicateRecipes outside the loop region by VF: [1949536](https://github.com/llvm/llvm-project/commit/19495364949476df196e3a0a12b3a035f7c2d1be)

Thanks, that solved the second problem I saw as well.

https://github.com/llvm/llvm-project/pull/142433