Landing: dcc21c5517ee

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Project / Subsystem

gcc / testsuite

Date

2026-05-02

Author

Alexandre Oliva

Commit

dcc21c5517eeaec3d41cbf7790e833f24a1f8c87

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: testsuite
patch_id: —
commit_hash: dcc21c5517eeaec3d41cbf7790e833f24a1f8c87
source_type: github
headline: Testsuite: Reorder clock::now calls in semaphore test
tldr: Reorders clock::now calls in a semaphore test to avoid false positives on VxWorks due to slow clock calls.
author: Alexandre Oliva
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • testsuite
• libstdc++
• vxworks
• threading
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/dcc21c5517eeaec3d41cbf7790e833f24a1f8c87
date: 2026-05-02T00:00:00.000Z

This commit reorders calls to clock::now() in the semaphore/try_acquire_until.cc test within the libstdc++ testsuite. On VxWorks, clock::now() calls can be slow, increasing the likelihood of consecutive calls returning different results. The reordering aims to prevent false positives during testing.