[PATCH] RISC-V: Describe relax passes with a pass table

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Project / Subsystem

binutils / risc-v

Date

2026-09-23

Proposer

Kito Cheng

Source type

public_inbox

Consensus

Proposed

Sentiment

—/10

Technical tradeoffs

• Increases code complexity by introducing a new data structure (pass table) but improves maintainability and extensibility.
• Allows for vendor-specific extensions without modifying core relaxation logic.

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All attributes

project: binutils
subsystem: risc-v
patch_id: —
discussion_id: 20260923151722.3185239-1-kito.cheng@sifive.com
source_type: public_inbox
title: [PATCH] RISC-V: Describe relax passes with a pass table
headline: RISC-V: Describe relax passes with a pass table
tldr: Refactors RISC-V relax passes into a table for better extensibility and maintainability.
proposer: Kito Cheng
consensus: Proposed
outcome: proposed
sentiment_score: —
technical_tradeoffs: • Increases code complexity by introducing a new data structure (pass table) but improves maintainability and extensibility.
• Allows for vendor-specific extensions without modifying core relaxation logic.
series_id: —
series_role: standalone
series_parts: []
tags: • patch
• risc-v
• binutils
• linker
• refactoring
url: https://inbox.sourceware.org/binutils/20260923151722.3185239-1-kito.cheng@sifive.com
bugzilla_url: —
date: 2026-09-23T00:00:00.000Z

[PATCH] RISC-V: Describe relax passes with a pass table

This patch refactors the RISC-V relax pass mechanism in binutils to use a pass table instead of hard-coded branches. This change aims to improve extensibility, allowing for easier addition of new relax passes, such as vendor-specific ones or those for Zcmt table jumps. The new structure defines each pass with a reloc selector, optional hooks, and a flag for optimization disabling, while maintaining the existing functionality.