Landing: 487ed3d78a77
Project / Subsystem
gcc / risc-v
Date
2026-07-22
Author
Jin Ma
Commit
487ed3d78a7725304da0d67b557c5dee093bf384
Source
github
Perf win
Yes
Breaking
No
All attributes
- project
- gcc
- subsystem
- risc-v
- patch_id
- —
- commit_hash
- 487ed3d78a7725304da0d67b557c5dee093bf384
- source_type
- github
- headline
- RISC-V: Return implied extensions by const reference.
- tldr
- RISC-V implied extensions are now returned by const reference to avoid vector copies.
- author
- Jin Ma
- outcome
- committed
- performance_win
- true
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • risc-v
- • optimization
- • compile-time
- • const reference
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-07-22T00:00:00.000Z
This change optimizes the RISC-V architecture support by returning the implied_exts from riscv_ext_info_t by const reference instead of by value. This eliminates unnecessary vector copies that were causing a 6.7% compile-time regression at -O0 by reducing overhead during option parsing.