Landing: 6fea108d4725
Project / Subsystem
gcc / gcc/expmed
Date
2026-09-11
Author
Robin Dapp
Commit
6fea108d4725f1aa79ce3acd9b6933da003d11a4
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc/expmed
- patch_id
- —
- commit_hash
- 6fea108d4725f1aa79ce3acd9b6933da003d11a4
- source_type
- github
- headline
- Use store_bit_field for unsplittable targets
- tldr
- Fixes an ICE in extract_integral_bit_field by using store_bit_field for unsplittable targets, improving robustness.
- author
- Robin Dapp
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • compiler-error
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-11T00:00:00.000Z
This change modifies extract_integral_bit_field to use store_bit_field when a target cannot be split into subregisters. This prevents an ICE that could occur after recent changes to regmode_natural_size. For RISC-V, this may introduce a spill per iteration, which is noted as a potential area for future mitigation.