Landing: d2a3bf4da621

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Project / Subsystem

gcc / libstdc++

Date

2026-07-16

Author

Tomasz Kamiński

Commit

d2a3bf4da621412d6fb574e117ff6046aaeaabb6

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: libstdc++
patch_id: —
commit_hash: d2a3bf4da621412d6fb574e117ff6046aaeaabb6
source_type: github
headline: libstdc++: Disable serialization test for piecewise_linear_distribution<double> on i686
tldr: Serialization test for piecewise_linear_distribution<double> disabled on i686 due to instability.
author: Tomasz Kamiński
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • libstdc++
• testing
• bugfix
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/d2a3bf4da621412d6fb574e117ff6046aaeaabb6
date: 2026-07-16T00:00:00.000Z

A test case for serialization of piecewise_linear_distribution<double> in libstdc++ has been disabled for the i686 architecture. Previously enabled for both double and float, testing revealed that the double version remains unstable on this architecture. This change aims to prevent test suite regressions while the underlying instability is investigated.