Landing: a03b3ab4b0a6

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Project / Subsystem

gcc / c++/modules

Date

2026-08-13

Author

Patrick Palka

Commit

a03b3ab4b0a6a446fe9a1d7e6e82967a8dd3edcf

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: c++/modules
patch_id: —
commit_hash: a03b3ab4b0a6a446fe9a1d7e6e82967a8dd3edcf
source_type: github
headline: C++ modules ICE fixed for GMF variables defined inline
tldr: Fixes an ICE in C++ modules when GMF variables are later defined inline.
author: Patrick Palka
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • c++
• modules
• compiler error
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/a03b3ab4b0a6a446fe9a1d7e6e82967a8dd3edcf
date: 2026-08-13T00:00:00.000Z

An internal compiler error (ICE) in GCC’s C++ modules feature has been fixed. The issue occurred when a redeclaration of a variable had language-specific data allocated, but the original declaration did not. This change ensures that language-specific data is correctly allocated using retrofit_lang_decl for such cases, resolving the ICE and improving module handling for inline definitions.