Landing: eb738824d502

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Project / Subsystem

gcc / avr

Date

2026-07-28

Author

Georg-Johann Lay

Commit

eb738824d502d5f6da77451d5105091b8a7db92d

Source

github

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project: gcc
subsystem: avr
patch_id: —
commit_hash: eb738824d502d5f6da77451d5105091b8a7db92d
source_type: github
headline: AVR: Add 64-bit fixed-point divisions to libgcc
tldr: AVR targets gain 64-bit saturated fixed-point division support in libgcc.
author: Georg-Johann Lay
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • avr
• libgcc
• fixed-point
• division
• embedded
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/eb738824d502d5f6da77451d5105091b8a7db92d
date: 2026-07-28T00:00:00.000Z

This commit enhances the libgcc library for AVR targets by introducing 64-bit saturated fixed-point division routines. These new functions, including _udivuQ64_common and related variants, provide essential arithmetic capabilities for fixed-point computations on AVR microcontrollers. The ordinary divisions are aliased to the saturating versions, and rounding is consistently towards zero.