Landing: d23837ede804

← All landings

Project / Subsystem

gcc / rs6000

Date

2026-07-02

Author

Jeevitha Palanisamy

Commit

d23837ede804a02a121c93b38aca207e2913f308

Source

github

Perf win

Breaking

View on GitHub →

All attributes

project: gcc
subsystem: rs6000
patch_id: —
commit_hash: d23837ede804a02a121c93b38aca207e2913f308
source_type: github
headline: Add support for new __dmr1024 type in PowerPC ABI.
tldr: PowerPC backend adds support for `TDOmode` representing `__dmr1024` for future processor features.
author: Jeevitha Palanisamy
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • powerpc
• architecture
• compiler
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/d23837ede804a02a121c93b38aca207e2913f308
date: 2026-07-02T00:00:00.000Z

The GCC rs6000 (PowerPC) backend has introduced support for a new opaque mode, TDOmode, which corresponds to the __dmr1024 type. This mode is intended for a potential future Power processor feature, likely related to Dense Math. The changes ensure that this new type is handled similarly to existing MMA opaque types, particularly in diagnosing invalid function parameter and return values for Dense Math operations. Diagnostics are updated to distinguish between Dense Math and MMA types.