Landing: 5d17eec7d834

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Project / Subsystem

gcc / libstdc++

Date

2026-05-14

Author

Tomasz Kamiński

Commit

5d17eec7d83445ba4f960c81c386be33baee52a4

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: libstdc++
patch_id: —
commit_hash: 5d17eec7d83445ba4f960c81c386be33baee52a4
source_type: github
headline: libstdc++: Mark gencanon_eng_neg test as unsupported if __float128 is unavailable.
tldr: The gencanon_eng_neg test is marked as unsupported when __float128 is not available, preventing errors.
author: Tomasz Kamiński
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • libstdc++
• testsuite
• floating point
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/5d17eec7d83445ba4f960c81c386be33baee52a4
date: 2026-05-14T00:00:00.000Z

The gencanon_eng_neg test in libstdc++ requires the __float128 type. This commit ensures that the test is only run on targets that support __float128, preventing errors on other platforms by adding dg-require-effective-target to the test.