Landing: 898cd9381986

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Project / Subsystem

gcc / avr

Date

2026-08-05

Author

Georg-Johann Lay

Commit

898cd93819867f14fe26d708288434a0c033721a

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: avr
patch_id: —
commit_hash: 898cd93819867f14fe26d708288434a0c033721a
source_type: github
headline: AVR: Add [un]signed saturated accumulator divisions.
tldr: AVR libgcc now supports signed and unsigned saturated accumulator divisions for USAmode.
author: Georg-Johann Lay
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • avr
• fixed-point
• libgcc
• saturation
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/898cd93819867f14fe26d708288434a0c033721a
date: 2026-08-05T00:00:00.000Z

This commit adds support for signed and unsigned saturated accumulator divisions in the USAmode for the AVR target. The existing non-saturating division functions have been reworked to become aliases of the new saturating versions, resulting in a slight code size change for some functions. New test cases are included.