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1. Commits on Jun 26, 2024

   • [3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643) (#121043)

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     vstinner

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2. Commits on Jun 20, 2024

   • [3.13] gh-119258: Backport optimizer frame fixes in GH-119365 (GH-120699)

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     Fidget-Spinner

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3. Commits on May 1, 2024

   • gh-118335: Configure Tier 2 interpreter at build time (#118339)

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     gvanrossum

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4. Commits on Apr 25, 2024

   • GH-118095: Handle `RETURN_GENERATOR` in tier 2 (GH-118180)

     markshannon

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5. Commits on Apr 24, 2024

   • GH-115419: Move setting the instruction pointer to error exit stubs (GH-118088)

     markshannon

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6. Commits on Apr 22, 2024

   • GH-115480: Reduce guard strength for binary ops when type of one operand is known already (GH-118050)

     markshannon

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7. Commits on Apr 19, 2024

   • GH-116202: Incorporate invalidation check into _START_EXECUTOR. (GH-118044)

     markshannon

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   • GH-115419: Improve list of escaping functions (GH-118054)

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8. Commits on Apr 18, 2024

   • GH-115419: Tidy up tier 2 optimizer. Merge peephole pass into main pass (GH-117997)

     markshannon

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9. Commits on Apr 3, 2024

   • gh-116168: Remove extra `_CHECK_STACK_SPACE` uops (#117242)

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     lazorchakp

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10. Commits on Mar 26, 2024

    • GH-116422: Tier2 hot/cold splitting (GH-116813)

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      markshannon

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11. Commits on Mar 21, 2024

    • gh-117045: Add code object to function version cache (#117028)

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      gvanrossum

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    • gh-116996: Add pystats about _Py_uop_analyse_and_optimize (GH-116997)

      mdboom

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12. Commits on Mar 20, 2024

    • GH-117066: Tier 2 optimizer: Don't throw away good traces if we can't optimize them perfectly. (GH-117067)

      markshannon

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13. Commits on Mar 18, 2024

    • Cleanup tier2 debug output (#116920)

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      gvanrossum

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14. Commits on Mar 11, 2024

    • GH-116596: Better determination of escaping uops. (GH-116597)

      markshannon

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15. Commits on Mar 8, 2024

    • GH-113710: Fix optimization of globals using `_CHECK_FUNCTION` (GH-116460)

      markshannon

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16. Commits on Mar 6, 2024

    • GH-113710: Tier 2 optimizer: check the function instead of checking globals. (GH-116410)

      markshannon

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17. Commits on Mar 5, 2024

    • GH-115685: Split `_TO_BOOL_ALWAYS_TRUE` into micro-ops (GH-116352)

      markshannon

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    • GH-115819: Eliminate Boolean guards when value is known (GH-116355)

      markshannon

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    • GH-115685: Optimize `TO_BOOL` and variants based on truthiness of input. (GH-116311)

      markshannon

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18. Commits on Feb 29, 2024

    • gh-116088: Insert bottom checks after all sym_set_...() calls (#116089)

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      gvanrossum

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19. Commits on Feb 28, 2024

    • gh-115859: Re-enable T2 optimizer pass by default (#116062)

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      gvanrossum

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    • gh-115816: Improve internal symbols API in optimizer (#116028)

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      gvanrossum

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20. Commits on Feb 27, 2024

    • GH-115816: Assorted naming and formatting changes to improve maintainability. (GH-115987)

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      markshannon

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    • GH-115816: Make tier2 optimizer symbols testable, and add a few tests. (GH-115953)

      markshannon

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21. Commits on Feb 26, 2024

    • gh-115168: Add pystats counter for invalidated executors (GH-115169)

      mdboom

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    • Rename tier 2 redundancy eliminator to optimizer (#115888)

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      gvanrossum

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22. Commits on Feb 23, 2024

    • gh-115859: Disable the tier 2 redundancy eliminator by default (GH-115860)

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    • gh-114058: More robust method handling in redundancy eliminator (GH-115779)

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23. Commits on Feb 22, 2024

    • GH-115651: Convert `LOAD_MODULE_ATTR` into `LOAD_INLINE_CONST` when the module is itself a constant. (GH-115711)

      markshannon

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24. Commits on Feb 21, 2024

    • Delete unused sym_clear_flag function. (#115744)

      benjaminp

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25. Commits on Feb 20, 2024

    • Tier 2 cleanups and tweaks (#115534)

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      gvanrossum

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26. Commits on Feb 16, 2024

    • gh-115480: Minor fixups in int constant propagation (GH-115507)

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27. Commits on Feb 15, 2024

    • gh-115480: Type and constant propagation for int BINARY_OPs (GH-115478)

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