Landing: 9d42eeefb750

Project / Subsystem

gcc / aarch64

Date

2026-08-24

Author

Dhruv Chawla

Commit

9d42eeefb75065ab7c17926ae4f65bdfea6e8e77

Source

github

Perf win

No

Breaking

No

All attributes

project
gcc
subsystem
aarch64
patch_id
—
commit_hash
9d42eeefb75065ab7c17926ae4f65bdfea6e8e77
source_type
github
headline
aarch64: Port NEON reduction intrinsics to pragma framework
tldr
NEON reduction intrinsics (vaddv, vmaxv, vminv, etc.) are now handled by GCC's pragma-based framework.
author
Dhruv Chawla
outcome
committed
performance_win
false
breaking_change
false
series_id
—
series_parts
[]
tags
  • • aarch64
  • • neon
  • • intrinsics
  • • compiler framework
discussion_id_link
—
bugzilla_pr
—
date
2026-08-24T00:00:00.000Z

Several NEON reduction intrinsics for aarch64, including vaddv, vmaxv, vminv, vmaxnmv, and vminnmv, have been ported to GCC’s pragma-based framework. Some floating-point variants requiring special NaN handling (e.g., vmaxv_f32) were not ported in this patch due to complexities in mapping them to existing instruction patterns. The changes involve adding new function bases and groups and removing many previously defined functions from arm_neon.h.