Landing: 9baaca2adeca

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Project / Subsystem

gcc / gcc/tree-optimization

Date

2026-08-05

Author

Richard Biener

Commit

9baaca2adeca178edf8c0816ef328dba1cf270bc

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gcc/tree-optimization
patch_id: —
commit_hash: 9baaca2adeca178edf8c0816ef328dba1cf270bc
source_type: github
headline: Fix bitfield rounding in get_inner_reference_aff.
tldr: Correctly handles bitfield precision offsets and sizes for affine transformations.
author: Richard Biener
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • optimization
• compiler
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/9baaca2adeca178edf8c0816ef328dba1cf270bc
date: 2026-08-05T00:00:00.000Z

The get_inner_reference_aff function has been corrected to properly handle bit precision offsets and sizes when calculating affine transformations. Previously, it failed to round these values correctly. This change adjusts the rounding logic to ensure more accurate computations, accompanied by a new test case to verify the fix.