Landing: ec4f03aae5e8

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Project / Subsystem

gcc / risc-v

Date

2026-07-15

Author

Jim Lin

Commit

ec4f03aae5e81c67e0cb5afd7f5c7cbf199fa411

Source

github

Perf win

Breaking

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project: gcc
subsystem: risc-v
patch_id: —
commit_hash: ec4f03aae5e81c67e0cb5afd7f5c7cbf199fa411
source_type: github
headline: RISC-V: Fix GE/GEU zicond splitter to emit correct comparison
tldr: Corrects a RISC-V code generation bug where GE/GEU comparisons were miscompiled.
author: Jim Lin
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • risc-v
• compiler
• bugfix
• code generation
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/ec4f03aae5e81c67e0cb5afd7f5c7cbf199fa411
date: 2026-07-15T00:00:00.000Z

A code generation splitter for RISC-V’s zicond extension incorrectly used a greater-than comparison instead of a greater-than-or-equal-to comparison for GE/GEU operations. This led to miscompilation when the input value was exactly 1. The fix ensures the splitter emits the correct comparison, matching the intended behavior.