Landing: f6a1e69999d7

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Project / Subsystem

gcc / gcc

Date

2025-09-30

Author

Jørgen Kvalsvik

Commit

f6a1e69999d7b614cbcedff6ecaa01b713f31266

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gcc
patch_id: —
commit_hash: f6a1e69999d7b614cbcedff6ecaa01b713f31266
source_type: github
headline: Add attribute and pragma for source code coverage suppression.
tldr: New attribute and pragma allow developers to exclude specific code sections from coverage reports.
author: Jørgen Kvalsvik
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • coverage
• debugging
• gcov
• testing
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/f6a1e69999d7b614cbcedff6ecaa01b713f31266
date: 2025-09-30T00:00:00.000Z

GCC now supports [[gnu::suppress_coverage]] attribute and #pragma GCC suppress_coverage to exclude functions or code blocks from coverage reports. This is useful for code like unreachable asserts or library code that shouldn’t impact user-facing coverage metrics. It provides finer-grained control than existing file-level filtering.