Landing: 64d982984a07

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Project / Subsystem

gcc / gcc/risc-v

Date

2026-05-13

Author

Robin Dapp

Commit

64d982984a07105adf028689623c41005b400bdb

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gcc/risc-v
patch_id: —
commit_hash: 64d982984a07105adf028689623c41005b400bdb
source_type: github
headline: RISC-V: Avoid late splitting of 64-bit vector extracts on 32-bit targets.
tldr: GCC now avoids emitting 64-bit vector extracts on 32-bit RISC-V targets, fixing a compilation failure.
author: Robin Dapp
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • gcc
• risc-v
• vectorization
• bugfix
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/64d982984a07105adf028689623c41005b400bdb
date: 2026-05-13T00:00:00.000Z

When compiling for 32-bit RISC-V, GCC was emitting 64-bit vector extracts that could not be split late in the compilation process, leading to a compilation failure. This commit modifies the riscv_legitimize_move function to emit 32-bit vector extracts directly, avoiding the need for late splitting and resolving the issue.