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perf: Unify the undo log of all snapshot types #69464

Merged
merged 22 commits into from
May 6, 2020
Merged

perf: Unify the undo log of all snapshot types #69464

merged 22 commits into from
May 6, 2020

Commits on May 5, 2020

  1. Allow hir().find to return None

    @Zoxc
    Zoxc authored and Markus Westerlind committed May 5, 2020
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  2. perf: Reduce snapshot/rollback overhead 

    By merging the undo_log of all structures part of the snapshot the cost
of creating a snapshot becomes much cheaper. Since snapshots with no or
few changes are so frequent this ends up mattering more than the slight
overhead of dispatching on the variants that map to each field.
    Markus Westerlind committed May 5, 2020
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  3. Move region_constraint to the unified undo log

    Markus Westerlind committed May 5, 2020
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  4. Allow SnapshotMap to have a separate undo_log

    Markus Westerlind committed May 5, 2020
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  5. Move projection_cache into the combined undo log

    Markus Westerlind committed May 5, 2020
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  6. perf: Separate CombinedSnapshot into a FullSnapshot for probing

    Markus Westerlind committed May 5, 2020
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  7. perf: Lazily recive the Rollback argument in rollback_to

    Markus Westerlind committed May 5, 2020
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  8. perf: Limit leak check snapshotting to probe_maybe_skip_leak_check

    Markus Westerlind committed May 5, 2020
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  9. perf: Merge region_obligations snapshotting into the undo log

    Markus Westerlind committed May 5, 2020
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  10. simplify

    Markus Westerlind committed May 5, 2020
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  11. refactor: Rename Logs to InferCtxtUndoLogs

    Markus Westerlind committed May 5, 2020
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  12. refactor: Extract the undo log to its own modules

    Markus Westerlind committed May 5, 2020
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  13. Fix import

    Markus Westerlind committed May 5, 2020
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  14. Prevent modifications without an undo log

    Markus Westerlind committed May 5, 2020
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  15. refactor: simplify

    Markus Westerlind committed May 5, 2020
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  16. Rebase and use ena 0.14

    Markus Westerlind committed May 5, 2020
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  17. Fix review comments

    Markus Westerlind committed May 5, 2020
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  18. Generate the UndoLog upcasts with a macro

    Markus Westerlind committed May 5, 2020
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  19. Improve naming

    Markus Westerlind committed May 5, 2020
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  20. refactor: Move probe_fudge into fudge.rs

    Markus Westerlind committed May 5, 2020
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  21. refactor: Replace probe_fudge by an explict call for the lengths

    Markus Westerlind committed May 5, 2020
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  22. Restore the snapshot/rollback optimization for region constraints

    Markus Westerlind committed May 5, 2020
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