Alexis Engelke 0d05c882ce [Support] Use block numbers for LoopInfo BBMap (#103400) ...

Replace the DenseMap from blocks to their innermost loop a vector
indexed by block numbers, when possible. Supporting number updates is
not trivial as we don't store a list of basic blocks, so this is not
implemented.

NB: I'm generally not happy with the way loops are stored. As I think
that there's room for improvement, I don't want to touch the
representation at this point.

Pull Request: https://github.com/llvm/llvm-project/pull/103400

2026-03-19 11:18:06 +01:00

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