Landing: 2428677618e0

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Project / Subsystem

gcc / avr

Date

2026-07-21

Author

Georg-Johann Lay

Commit

2428677618e0388f289a56eaa5dc8a253692d5a6

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: avr
patch_id: —
commit_hash: 2428677618e0388f289a56eaa5dc8a253692d5a6
source_type: github
headline: AVR: Fix missing SET instruction in __mulQ64_work.
tldr: Corrected missing SET instruction in AVR's __mulQ64_work for signed multiplication.
author: Georg-Johann Lay
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • avr
• libgcc
• bugfix
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/2428677618e0388f289a56eaa5dc8a253692d5a6
date: 2026-07-21T00:00:00.000Z

A previously introduced function for 64-bit multiplication on AVR microcontrollers, __mulQ64_work, was missing a necessary SET instruction. This commit adds the SET instruction, ensuring correct behavior for signed multiplications.