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Skip ownership checks after unchanged location propagation - #1324
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charliermarsh merged 1 commit intoOct 18, 2026
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October 18, 2026 01:32
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We skip an ownership-certificate rescan when location propagation leaves both the instructions and provenance unchanged. Assertion-only paths keep the checkpoint, and pass ordering is unchanged.
Matched project profiles reduce instructions by 0.08-0.09% for Mypy on 3.14/3.15 and 0.06% for SymPy on 3.15. Earlier targets and the benchmark suite are effectively flat, and project outputs remain byte-identical. Native peak RSS decreases 0.8% for Mypy and increases about 0.8 MiB (1.8%) for SymPy; native timing samples retain warmup warnings.