Landing: 852928b45f1b

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Project / Subsystem

gcc / ifcvt

Date

2026-07-22

Author

Kyrylo Tkachov

Commit

852928b45f1b4a4eb2dbea13a245814413dc147f

Source

github

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project: gcc
subsystem: ifcvt
patch_id: —
commit_hash: 852928b45f1b4a4eb2dbea13a245814413dc147f
source_type: github
headline: ifcvt: use auto_bitmap for the local hand-managed bitmaps
tldr: Replaces manual bitmap management with RAII-style auto_bitmap for improved safety in the ifcvt pass.
author: Kyrylo Tkachov
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • ifcvt
• refactor
• memory management
• robustness
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/852928b45f1b4a4eb2dbea13a245814413dc147f
date: 2026-07-22T00:00:00.000Z

Several functions within GCC’s ifcvt pass that manually managed bitmaps using BITMAP_ALLOC and BITMAP_FREE have been updated to use auto_bitmap. This RAII-style approach ensures bitmaps are automatically freed upon exiting the scope, preventing potential memory leaks from incorrect BITMAP_FREE calls, especially when new exit paths are introduced. This change enhances robustness without altering optimization behavior.