Landing: 83c53762544f

← All landings

Project / Subsystem

gcc / risc-v

Date

2026-09-10

Author

Pan Li

Commit

83c53762544f1f7db2b0840cff6a957e7ea47a14

Source

github

Perf win

Breaking

View on GitHub →

All attributes

project: gcc
subsystem: risc-v
patch_id: —
commit_hash: 83c53762544f1f7db2b0840cff6a957e7ea47a14
source_type: github
headline: RISC-V: Add tests for widening instruction ICE
tldr: Adds test cases to expose and verify fixes for compiler internal errors with RISC-V widening instructions.
author: Pan Li
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • risc-v
• vector
• test
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/83c53762544f1f7db2b0840cff6a957e7ea47a14
date: 2026-09-10T00:00:00.000Z

This commit introduces a suite of test cases for the RISC-V Vector (RVV) extension, specifically targeting an internal compiler error (ICE) that occurred with widening instructions. The ICE was triggered when the destination and source registers of a widening instruction had the same number of registers, leading to incorrect assertion failures in the compiler’s reload pass. These new tests ensure that such scenarios are correctly handled and prevent regressions.