GCC Newspaper
OCTOBER 6, 2026
gcc — Proposed

Help with non-reproducible .debug_loclists

Developer reports a non-reproducible issue with .debug_loclists and provides a detailed reproducer.

Nazar Kazakov reports an issue with non-reproducible .debug_loclists and has managed to create a detailed, albeit not minimal, reproducer. They are posting the steps here due to difficulties in creating a bugzilla account. The issue was observed on two different x86_64 machines using Debian and NixOS with GCC 16.1.0.

In the Thread 1 participant
  1. Nazar Kazakov <nazar.kazakov@codethink.co.uk> proposer

    Provides a detailed reproducer for a non-reproducible .debug_loclists issue, posting it here due to difficulties with bugzilla account creation.

In Details

Debugging information, specifically .debug_loclists, is generated by GCC. Issues here can lead to incorrect debug information, making it harder to debug optimized code. This thread concerns a non-reproducible bug in this area, with the reporter providing steps to reproduce it.

Filed Under: gccdebuginfodwarf