Landing: 2c421a5cbe9d
Project / Subsystem
gcc / gcc/rs6000
Date
2026-07-13
Author
Surya Kumari Jangala
Commit
2c421a5cbe9d2b61316556a3ef30e408e5210520
Source
github
Perf win
Yes
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc/rs6000
- patch_id
- —
- commit_hash
- 2c421a5cbe9d2b61316556a3ef30e408e5210520
- source_type
- github
- headline
- rs6000: Add support for Dense Math Facility (DMF) registers
- tldr
- GCC on rs6000 now supports new 1024-bit Dense Math Facility registers for accelerated matrix and crypto operations.
- author
- Surya Kumari Jangala
- outcome
- committed
- performance_win
- true
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • rs6000
- • powerpc
- • compiler
- • optimization
- • new feature
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-07-13T00:00:00.000Z
This commit introduces support for the Dense Math Facility (DMF) registers on the rs6000 backend, enabling future processors to accelerate matrix and cryptographic operations. It adds eight 1024-bit registers (dmr0-dmr7), introduces a new 1024-bit data mode (TDOmode), extends XOmode to utilize these registers, and integrates them into the register allocation system, including mechanisms for transferring data between DMR and VSX registers.