Landing: e0f62720743e

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Project / Subsystem

gcc / fortran

Date

2026-09-23

Author

Jerry DeLisle

Commit

e0f62720743e7750eef0c86dfa23d5965e2de785

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: fortran
patch_id: —
commit_hash: e0f62720743e7750eef0c86dfa23d5965e2de785
source_type: github
headline: Fortran: ICE with %LEN of deferred-length character in ASSOCIATE
tldr: Fixes an ICE in Fortran when querying the length or kind of deferred-length character variables within an ASSOCIATE construct.
author: Jerry DeLisle
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • fortran
• compiler bug
• ice
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/e0f62720743e7750eef0c86dfa23d5965e2de785
date: 2026-09-23T00:00:00.000Z

An internal compiler error (ICE) occurred in the Fortran frontend when a %LEN or %KIND inquiry was made on a deferred-length character variable inside an ASSOCIATE construct. This was due to the inquiry’s result retaining a ‘deferred’ flag, which caused a segfault when later processed. The fix clears this flag and correctly handles the character length for such inquiries, also resolving an issue where inquiries on ASSOCIATE names incorrectly reverted the type to CHARACTER.