Landing: 26e3c0bcc4e3

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Project / Subsystem

gcc / cobol

Date

2026-09-04

Author

Robert Dubner

Commit

26e3c0bcc4e385d90189fd89561d2746a4d8c860

Source

github

Perf win

Yes

Breaking

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All attributes

project: gcc
subsystem: cobol
patch_id: —
commit_hash: 26e3c0bcc4e385d90189fd89561d2746a4d8c860
source_type: github
headline: COBOL STRING and UNSTRING routines refactored for speed.
tldr: COBOL STRING/UNSTRING routines are now specialized for single-byte and multi-byte character sets, significantly speeding up single-byte operations.
author: Robert Dubner
outcome: committed
performance_win: true
breaking_change: false
series_id: —
series_parts: []
tags: • cobol
• performance
• optimization
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/26e3c0bcc4e385d90189fd89561d2746a4d8c860
date: 2026-09-04T00:00:00.000Z

The COBOL STRING and UNSTRING statement implementations have been refactored into separate routines optimized for single-byte character sets and multi-byte character sets. This specialization leads to substantial performance improvements when processing single-byte encoded strings, which is a common use case.