Landing: b756d03533d7

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Project / Subsystem

gcc / tree-optimization

Date

2026-05-04

Author

Richard Biener

Commit

b756d03533d7d0c92bd6a252cd4f3260973e93f5

Source

github

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project: gcc
subsystem: tree-optimization
patch_id: —
commit_hash: b756d03533d7d0c92bd6a252cd4f3260973e93f5
source_type: github
headline: Tree-optimization/125124: Disable sanity checking of BB SLP partitioning
tldr: Disables a sanity check that verifies the correctness of basic block SLP partitioning, likely due to a bug in the check itself.
author: Richard Biener
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • optimization
• vectorization
• slp
• tree-optimization
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/b756d03533d7d0c92bd6a252cd4f3260973e93f5
date: 2026-05-04T00:00:00.000Z

This commit disables a sanity check that previously verified the correctness of basic block SLP partitioning within the tree-optimization pass. The check was likely found to be faulty, triggering false positives. Disabling it allows the compiler to proceed without interruption, while a proper fix for the sanity check is presumably investigated. A new test case is added.