Florian Hahn a861ed411a [VPlan] Add initial loop-invariant code motion transform. (#107894) ...

Add initial transform to move out loop-invariant recipes.

This also helps to fix a divergence between legacy and VPlan-based cost
model due to legacy using ScalarEvolution::isLoopInvariant in some
cases.

Fixes https://github.com/llvm/llvm-project/issues/107501.

PR: https://github.com/llvm/llvm-project/pull/107894

2024-09-20 11:22:03 +01:00

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