[LoopUnroll] Rotate loop to make it countable for runtime unrolling #146540

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mark-sed wants to merge 4 commits intollvm:mainfrom

mark-sed:loop-rotate-before-runtime-unroll

Commits on Jul 1, 2025

This patch adds loop rotation to runtime loop unrolling if this makes
Marek Sedlacek
committed

Commits on Jul 3, 2025

Fixed wording of a comment and debug; Removed UB and unused parameter from a test
Marek Sedlacek
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Commits on Jul 7, 2025

Added indication of loop rotation when no unroll happens
Marek Sedlacek
committed

Commits on Jul 10, 2025

Removed cpu specification from .ll test; Added check for simplify form of loop before rotation
Marek Sedlacek
committed