Landing: 8a53b73471ee
Project / Subsystem
binutils / s390
Date
2026-10-02
Author
Jens Remus <jremus@sourceware.org>
Commit
8a53b73471eed02de71c75bcdb77ea823a237f77
Source
public_inbox
Perf win
No
Breaking
No
All attributes
- project
- binutils
- subsystem
- s390
- patch_id
- —
- commit_hash
- 8a53b73471eed02de71c75bcdb77ea823a237f77
- source_type
- public_inbox
- headline
- s390: Enforce register pair constraints for cmpsc instruction
- tldr
- Assembler now enforces register pair constraints for s390 cmpsc instruction.
- author
- Jens Remus <jremus@sourceware.org>
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • s390
- • assembler
- • architecture
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-10-02T00:00:00.000Z
This commit updates the s390 assembler to enforce architectural constraints on the register operands for the cmpsc instruction. It ensures that both R1 and R2 operands designate an even-odd pair of general registers and are even-numbered registers, preventing specification exceptions.