Landing: b349b554d10a

← All landings

Project / Subsystem

gcc / cris

Date

2026-07-29

Author

Roger Sayle

Commit

b349b554d10aac80e242c1749c69764bbabc9006

Source

github

Perf win

Breaking

View on GitHub →

All attributes

project: gcc
subsystem: cris
patch_id: —
commit_hash: b349b554d10aac80e242c1749c69764bbabc9006
source_type: github
headline: Restore cris-elf build after RTL optimization regression.
tldr: Fixes a regression impacting the CRIS architecture's build process caused by recent RTL simplification improvements.
author: Roger Sayle
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • cris
• build
• regression
• rtl-optimization
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/b349b554d10aac80e242c1749c69764bbabc9006
date: 2026-07-29T00:00:00.000Z

A recent RTL simplification improvement introduced a regression that broke the build for the CRIS architecture, specifically for cris-elf. The issue stemmed from cris.md’s cbranch instructions accepting more machine modes than the define_insn it lowered to could handle. This commit resolves the problem by adding the necessary modes to the btst instruction definition, restoring the build.