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Make BOLT as stable feature #101525

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Make BOLT as stable feature#101525
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corona10
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buildThe build process and cross-buildperformancePerformance or resource usagetype-featureA feature request or enhancement

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@corona10
corona10
opened on Feb 2, 2023

Using a BOLT still not guarantee the unexpected behavior changes.
For example, I observed that #53093 is raised if the binary is optimized by BOLT.
We can reduce several too aggressive optimization.

cc @aaupov

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Activity

  1. corona10
    added
    type-featureA feature request or enhancement
    performancePerformance or resource usage
    on Feb 2, 2023
  2. corona10
    self-assigned this
    on Feb 2, 2023

  3. corona10 commented on Feb 2, 2023

    @corona10
    corona10
    on Feb 2, 2023
    MemberAuthor

    I am analyzing several effects of BOLT.

  4. corona10 commented on Feb 8, 2023

    @corona10
    corona10
    on Feb 8, 2023
    MemberAuthor

    Need to update get_build_info for the BOLT binary.

  5. corona10 commented on Feb 24, 2023

    @corona10
    corona10
    on Feb 24, 2023
    MemberAuthor

    Consider a way to detect post-bolted binary: llvm/llvm-project#60253

  6. corona10
    added 2 commits that reference this issue on Apr 2, 2023

    pythongh-101525: Disable peephole optimization process of BOLT

    16f15a1

    gh-101525: Disable peephole optimization process of BOLT (gh-103187)

    a62ff97
  7. gaogaotiantian
    added a commit that references this issue on Apr 8, 2023

    pythongh-101525: Disable peephole optimization process of BOLT (pytho…

    1614139
  8. warsaw
    added a commit that references this issue on Apr 11, 2023

    pythongh-101525: Disable peephole optimization process of BOLT (pytho…

    9ca78d7
  9. corona10
    added 2 commits that reference this issue on Apr 16, 2023

    pythongh-101525: Fix make test if the --enable-bolt enabled

    a9a36d5

    gh-101525: Fix make test if the --enable-bolt enabled (gh-103574)

    5d9762e
  10. indygreg
    added 2 commits that reference this issue on May 20, 2023

    pythongh-101282: rework the BOLT build process

    f7851cd

    pythongh-101282: rework the BOLT build process

    555686d
  11. erlend-aasland
    added a commit that references this issue on May 22, 2023

    gh-101282: Apply BOLT optimizations to libpython for shared builds (#…

    5360cb3

  12. 8 remaining items

  13. corona10
    added 2 commits that reference this issue on Sep 2, 2024

    [3.12] pythongh-101525: Skip test_gdb if the binary is relocated by B…

    1ba223c

    [3.12] gh-101525: Skip test_gdb if the binary is relocated by BOLT. (… (

    4514998

  14. zanieb commented on Feb 9, 2025

    @zanieb
    zanieb
    on Feb 9, 2025
    Contributor

    Let's talk about next steps for stabilization here? We have testing in CI now and I think x86-64 can be considered stable?

  15. corona10 commented on Feb 10, 2025

    @corona10
    corona10
    on Feb 10, 2025
    MemberAuthor

    Yeah, I think that we can close this issue at this moment :)

  16. geofft commented on May 25, 2025

    @geofft
    geofft
    on May 25, 2025
    Contributor

    Using a BOLT still not guarantee the unexpected behavior changes.
    For example, I observed that #53093 is raised if the binary is optimized by BOLT.

    #134642 should address this.

  17. stratakis
    added 3 commits that reference this issue on Oct 17, 2025

    pythongh-101525: Check whether to skip functions with computed gotos …

    5c600a6

    pythongh-101525: Add GCC's LTO-generated function clones, with comput…

    d6da34f

    pythongh-101525: Check whether to skip functions with computed gotos …

    241a541
  18. corona10
    added a commit that references this issue on Oct 19, 2025

    gh-101525: [BOLT] Add GCC's LTO-generated function clones, with compu…

    bad8d6d

  19. stratakis commented on Nov 6, 2025

    @stratakis
    stratakis
    on Nov 6, 2025
    Contributor

    Crash on Fedora 43 reported on llvm: llvm/llvm-project#166863

  20. stratakis
    added 2 commits that reference this issue on Nov 20, 2025

    pythongh-101525: Check whether to skip functions with computed gotos …

    41d3a75

    pythongh-101525: Check whether to skip functions with computed gotos …

    33effce
  21. StanFromIreland
    added a commit that references this issue on Dec 6, 2025

    pythongh-101525: [BOLT] Add GCC's LTO-generated function clones, with…

    0685971
  22. stratakis
    added 2 commits that reference this issue on Dec 17, 2025

    fixup! pythongh-101525: Check whether to skip functions with computed…

    944072e

    fixup! pythongh-101525: Check whether to skip functions with computed…

    336f8ed
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