Gabriel Baraldi 5e0a06b34d Move ExpandMemCmp and MergeIcmp to the middle end (#77370) ...

Moving these into the middle-end pipeline will allow for additional
optimization of the expansion result, such as CSE of redundant loads
(c.f. https://godbolt.org/z/bEna4Md9r). For now, we conservatively place
the passes at the end of the middle-end pipeline, so we mostly don't
benefit from additional optimizations yet. The pipeline position will be
moved in a future change.

This builds on work done by legrosbuffle in
https://reviews.llvm.org/D60318.

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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-02 09:57:00 +02:00

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