Landing: a426e0a8c5ee

← All landings

Project / Subsystem

gcc / tree-optimization

Date

2026-09-14

Author

Richard Biener

Commit

a426e0a8c5ee9cdcf842ea44dc396069e890a4ca

Source

github

Perf win

Breaking

View on GitHub →

All attributes

project: gcc
subsystem: tree-optimization
patch_id: —
commit_hash: a426e0a8c5ee9cdcf842ea44dc396069e890a4ca
source_type: github
headline: Fix vector PAREN_EXPR code generation for assignments.
tldr: Correctly generates code for parenthesized expressions in vector assignments, fixing a bug in vectorization.
author: Richard Biener
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • optimization
• vectorization
• compiler
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/a426e0a8c5ee9cdcf842ea44dc396069e890a4ca
date: 2026-09-14T00:00:00.000Z

This commit fixes a bug where parenthesized expressions (PAREN_EXPR) were incorrectly dropped during vector code generation. This led to bogus code when vectorizing assignments. The fix ensures that PAREN_EXPRs are properly handled, improving the accuracy of vectorization.