Landing: 72318db7b685

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Project / Subsystem

gcc / risc-v

Date

2026-05-01

Author

Michiel Derhaeg

Commit

72318db7b685c285769d69acd831bf63607c8be7

Source

github

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Breaking

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project: gcc
subsystem: risc-v
patch_id: —
commit_hash: 72318db7b685c285769d69acd831bf63607c8be7
source_type: github
headline: RISC-V: Add Synopsys RMX-100 series pipeline description.
tldr: Adds pipeline description for Synopsys RMX-100 series processor to the RISC-V GCC backend.
author: Michiel Derhaeg
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • risc-v
• synopsys
• rmx-100
• pipeline
• architecture
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/72318db7b685c285769d69acd831bf63607c8be7
date: 2026-05-01T00:00:00.000Z

This patch introduces the pipeline description for the Synopsys RMX-100 series processor to the RISC-V GCC backend. The RMX-100 has a short, three-stage, in-order execution pipeline with configurable multiply unit options. The option -mmpy-option was added to control which version of the MPY unit the core has and what the latency of multiply instructions should be.