Landing: fa990a13fa4e

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Project / Subsystem

gcc / gcc/tree-optimization

Date

2026-08-27

Author

Andrew MacLeod

Commit

fa990a13fa4ee7e25e4a5dae456496e772c386ec

Source

github

Perf win

Yes

Breaking

View on GitHub →

All attributes

project: gcc
subsystem: gcc/tree-optimization
patch_id: —
commit_hash: fa990a13fa4ee7e25e4a5dae456496e772c386ec
source_type: github
headline: Phi analyzer: Avoid reprocessing already processed PHI definitions.
tldr: Optimisation pass avoids redundant processing of PHI definitions, improving efficiency.
author: Andrew MacLeod
outcome: committed
performance_win: true
breaking_change: false
series_id: —
series_parts: []
tags: • optimization
• gcc
• gimple
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/fa990a13fa4ee7e25e4a5dae456496e772c386ec
date: 2026-08-27T00:00:00.000Z

The PHI analyzer in the GIMPLE optimization pass now avoids reprocessing PHI definitions that have already been handled. This change prevents redundant work, potentially improving optimization performance.