Landing: dee08b5feed3

← All landings

Project / Subsystem

gcc / risc-v

Date

2026-01-21

Author

Monk Chiang

Commit

dee08b5feed336fe31e520115f6dcd18f84d24c8

Source

github

Perf win

Breaking

View on GitHub →

All attributes

project: gcc
subsystem: risc-v
patch_id: —
commit_hash: dee08b5feed336fe31e520115f6dcd18f84d24c8
source_type: github
headline: Zicfilp landing pads are now consistently 4-byte aligned
tldr: The Zicfilp extension for RISC-V now correctly aligns non-local goto target labels and exception landing pads to 4 bytes, preventing runtime errors.
author: Monk Chiang
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • risc-v
• zicfilp
• alignment
• cfi
• bugfix
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/dee08b5feed336fe31e520115f6dcd18f84d24c8
date: 2026-01-21T00:00:00.000Z

This commit fixes an alignment issue for Zicfilp, a RISC-V extension. The compiler now ensures that non-local goto target labels and exception landing pads are 4-byte aligned by introducing a LABEL_ALIGN macro and modifying how gpr_save emits CFI guards. This change prevents potential runtime failures due to misaligned jump targets in generated code.