Landing: 9c5e44d17b55

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Project / Subsystem

gcc / RISC-V

Date

2026-08-17

Author

Kito Cheng

Commit

9c5e44d17b55c698d3e48b7b6ad3a15d6cae2f9b

Source

github

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All attributes

project: gcc
subsystem: RISC-V
patch_id: —
commit_hash: 9c5e44d17b55c698d3e48b7b6ad3a15d6cae2f9b
source_type: github
headline: Fix ICE passing empty aggregate in VLS calling convention.
tldr: Resolves compiler crash when passing empty aggregates via RISC-V VLS calling convention.
author: Kito Cheng
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • RISC-V
• compiler bug
• calling convention
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/9c5e44d17b55c698d3e48b7b6ad3a15d6cae2f9b
date: 2026-08-17T00:00:00.000Z

An internal compiler error (ICE) in the RISC-V backend when passing an empty aggregate struct using the riscv_vls_cc calling convention has been fixed. The function riscv_pass_aggregate_in_vr incorrectly attempted to access fields of an empty aggregate, leading to the crash. The fix ensures that NULL_RTX is returned for aggregates with no fields, allowing the generic compiler code to handle them appropriately.