llvm-project

b06a45c6 - [VPlan] Add all blocks to outer loop if present during ::execute (NFCI).

[VPlan] Add all blocks to outer loop if present during ::execute (NFCI). This ensures that all blocks created during VPlan execution are properly added to an enclosing loop, if present. Split off from https://github.com/llvm/llvm-project/pull/108378 and also needed once more of the skeleton blocks are created directly via VPlan. This also allows removing the custom logic for early-exit loop vectorization added as part of https://github.com/llvm/llvm-project/pull/117008.