Landing: b6dabcdc335a

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Project / Subsystem

gcc / cobol

Date

2026-09-06

Author

Robert Dubner

Commit

b6dabcdc335a9d1a942d489725e5a0fadcb5b55f

Source

github

Perf win

Yes

Breaking

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All attributes

project: gcc
subsystem: cobol
patch_id: —
commit_hash: b6dabcdc335a9d1a942d489725e5a0fadcb5b55f
source_type: github
headline: cobol: Improve INSPECT performance with specialized routines.
tldr: Optimizes COBOL INSPECT performance by separating single-byte and multi-byte operations and using task-specific search routines.
author: Robert Dubner
outcome: committed
performance_win: true
breaking_change: false
series_id: —
series_parts: []
tags: • cobol
• optimization
• performance
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/b6dabcdc335a9d1a942d489725e5a0fadcb5b55f
date: 2026-09-06T00:00:00.000Z

This commit enhances the performance of the COBOL INSPECT statement by refactoring its library routines. It now differentiates between single-byte and multi-byte character processing, applying specialized, faster routines for each. Additionally, new task-specific routines are introduced for efficient string searching within memory.