Landing: 1b5948d7141b

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Project / Subsystem

gcc / nvptx

Date

2026-04-16

Author

Thomas Schwinge

Commit

1b5948d7141b2651a48f73709d11dd253e1fa689

Source

github

Impact

7/10

Perf win

Breaking

View on GitHub →

All attributes

project: gcc
subsystem: nvptx
patch_id: —
commit_hash: 1b5948d7141b2651a48f73709d11dd253e1fa689
source_type: github
headline: nvptx: Support '-mptx=4.0'
tldr: Adds support for PTX version 4.0 to the nvptx backend.
why_it_matters: Enables developers to use features and optimizations available in PTX 4.0 when targeting NVIDIA GPUs.
author: Thomas Schwinge
impact_score: 7
impact_rationale: Adds support for a specific PTX version, a user-visible feature.
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • nvptx
• gpu
• ptx
• code generation
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/1b5948d7141b2651a48f73709d11dd253e1fa689
date: 2026-04-16T00:00:00.000Z

The nvptx backend now supports the ‘-mptx=4.0’ option, allowing developers to target PTX version 4.0. This commit introduces the necessary definitions, adjustments to the compiler options, and documentation updates. A new test case is included to verify the functionality.