Landing: 52756251f755

← All landings

Project / Subsystem

gcc / gcc/aarch64

Date

2026-01-09

Author

Artemiy Volkov

Commit

52756251f755dc8aefe44e5026e555c93b2c783b

Source

github

Perf win

Breaking

View on GitHub →

All attributes

project: gcc
subsystem: gcc/aarch64
patch_id: —
commit_hash: 52756251f755dc8aefe44e5026e555c93b2c783b
source_type: github
headline: AArch64: Add zeroing forms for predicated SVE FP unary operations
tldr: The compiler now supports zeroing predication for SVE floating-point unary operations under SVE2.2 or SME2.2.
author: Artemiy Volkov
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • aarch64
• sve
• sme
• intrinsics
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/52756251f755dc8aefe44e5026e555c93b2c783b
date: 2026-01-09T00:00:00.000Z

The compiler now supports zeroing predication for SVE floating-point unary operations under SVE2.2 or SME2.2. This change adds a new alternative to patterns in aarch64-sve.md and aarch64-sve2.md with Dz (the merge operand), enabled only if the sve2p2_or_sme2p2 condition holds, and emitting a single instruction with zeroing predication.