Landing: 6bba3fb7c5a3

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Project / Subsystem

gcc / gcc

Date

2026-08-19

Author

Richard Biener

Commit

6bba3fb7c5a34a66c28dd6b54d26d7f8a125824d

Source

github

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Breaking

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All attributes

project: gcc
subsystem: gcc
patch_id: —
commit_hash: 6bba3fb7c5a34a66c28dd6b54d26d7f8a125824d
source_type: github
headline: Remove dead code in BB vectorization
tldr: Cleans up dead code in GCC's basic block (BB) vectorization, specifically related to loop unrolling bail-outs.
author: Richard Biener
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • gcc
• optimization
• vectorization
• cleanup
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/6bba3fb7c5a34a66c28dd6b54d26d7f8a125824d
date: 2026-08-19T00:00:00.000Z

This commit removes redundant code from GCC’s basic block (BB) vectorization pass. The dead code pertains to bail-out logic during loop unrolling, which is now handled earlier in the discovery process. Removing this dead code simplifies the compiler’s internal logic without affecting functionality.