Landing: 03fcac336e04
Project / Subsystem
gcc / gcc/fold-mem-offsets
Date
2026-04-28
Author
Philipp Tomsich
Commit
03fcac336e04ba2cd57495a47534accc145e160e
Source
github
Perf win
Yes
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc/fold-mem-offsets
- patch_id
- —
- commit_hash
- 03fcac336e04ba2cd57495a47534accc145e160e
- source_type
- github
- headline
- Fold-mem-offsets: Move RISC-V size-optimization workaround to the backend.
- tldr
- A workaround for RISC-V size optimizations has been moved from the fold-mem-offsets pass to the RISC-V backend, improving performance for other targets.
- author
- Philipp Tomsich
- outcome
- committed
- performance_win
- true
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • RISC-V
- • optimization
- • code size
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-04-28T00:00:00.000Z
A target-specific workaround in the fold-mem-offsets pass, which skipped basic blocks optimized for size to avoid conflicts with RISC-V’s shorten-memrefs pass, has been moved to the RISC-V backend. This change allows other targets to benefit from offset folding in size-optimized blocks, while preserving the original RISC-V behavior by disabling fold-mem-offsets when optimizing for size with compressed instructions enabled.