Landing: ece10cd6b6b9
Project / Subsystem
gcc / aarch64
Date
2023-10-20
Author
Iain Sandoe
Commit
ece10cd6b6b9bb74fd0574492af09f7f0fa1d8bf
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- aarch64
- patch_id
- —
- commit_hash
- ece10cd6b6b9bb74fd0574492af09f7f0fa1d8bf
- source_type
- github
- headline
- AArch64 assembler bug workaround becomes configurable in GCC.
- tldr
- GCC for AArch64 now allows configuring a workaround for an assembler bug, resolving conflicting issues across different assemblers.
- author
- Iain Sandoe
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • aarch64
- • assembler
- • workaround
- • configuration
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2023-10-20T00:00:00.000Z
This commit makes a workaround for a specific assembler bug on AArch64 configurable within GCC. Some assemblers require the +crc flag to be emitted even when the base architecture inherently supports it, while other assemblers encounter a different bug when this flag is present. By making this behavior configurable in aarch64-common.cc, developers can now enable or disable the workaround as needed to ensure correct assembly generation across various AArch64 toolchains, preventing compilation failures caused by assembler inconsistencies.