Landing: 7c48d6a74693
Project / Subsystem
gcc / match.pd
Date
2026-08-08
Author
Dipesh Sharma
Commit
7c48d6a74693e1c64900f6aa203539ea1ca7b370
Source
github
Perf win
Yes
Breaking
No
All attributes
- project
- gcc
- subsystem
- match.pd
- patch_id
- —
- commit_hash
- 7c48d6a74693e1c64900f6aa203539ea1ca7b370
- source_type
- github
- headline
- Fold abs(x) * abs(y) into abs(x * y)
- tldr
- Optimizes absolute value multiplications to improve code efficiency.
- author
- Dipesh Sharma
- outcome
- committed
- performance_win
- true
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • compiler
- • math
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-08-08T00:00:00.000Z
This commit enhances the pattern matching capabilities of GCC by folding the expression abs(x) * abs(y) into abs(x * y). This transformation simplifies the intermediate representation, potentially leading to more efficient machine code generation.