[PATCH 00/23] aarch64: Split up QLF_NIL meanings, and other fixes
Project / Subsystem
binutils / aarch64
Date
2026-05-07
Proposer
Alice Carlotti <alice.carlotti@arm.com>
Source type
public_inbox
Consensus
Proposed
Sentiment
—/10
Technical tradeoffs
- • Increased code complexity due to the introduction of new qualifiers.
- • Potential performance impact due to the added sequence-length checks (though likely negligible).
- • Improved code clarity and maintainability due to the separation of concerns.
All attributes
- project
- binutils
- subsystem
- aarch64
- patch_id
- —
- discussion_id
- dc4b541f-660d-b4e4-7d55-09f1227d2a50@e124511.cambridge.arm.com
- source_type
- public_inbox
- title
- [PATCH 00/23] aarch64: Split up QLF_NIL meanings, and other fixes
- headline
- Aarch64: Split up QLF_NIL meanings, and other fixes
- tldr
- Splits AARCH64_OPND_QLF_NIL into NIL/ERR/UNKNOWN/UNUSED qualifiers, adds sequence-length checks, and improves code quality.
- proposer
- Alice Carlotti <alice.carlotti@arm.com>
- consensus
- Proposed
- outcome
- proposed
- sentiment_score
- —
- technical_tradeoffs
-
- • Increased code complexity due to the introduction of new qualifiers.
- • Potential performance impact due to the added sequence-length checks (though likely negligible).
- • Improved code clarity and maintainability due to the separation of concerns.
- series_id
- binutils:aarch64: split up qlf_nil meanings, and other fixes
- series_role
- cover
- series_parts
- []
- tags
-
- • aarch64
- • binutils
- • qualifiers
- • instruction decoding
- url
- https://inbox.sourceware.org/binutils/dc4b541f-660d-b4e4-7d55-09f1227d2a50@e124511.cambridge.arm.com
- bugzilla_url
- —
- date
- 2026-05-07T00:00:00.000Z
[PATCH 00/23] aarch64: Split up QLF_NIL meanings, and other fixes
This series splits the overloaded AARCH64_OPND_QLF_NIL operand qualifier into four distinct qualifiers: NIL, ERR, UNKNOWN, and UNUSED. This eliminates the need for the F_STRICT opcode flag to differentiate between NIL and UNKNOWN. The series also introduces checks to enforce correct qualifier sequence lengths, which would have caught issues addressed in earlier patches, and includes miscellaneous code quality improvements. The proposer intends to commit the changes next week if no issues are raised.