Landing: 01c624024ca8

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Project / Subsystem

gcc / i386

Date

2026-07-01

Author

Haochen Jiang

Commit

01c624024ca8938a207806d4f09c8764437aad97

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: i386
patch_id: —
commit_hash: 01c624024ca8938a207806d4f09c8764437aad97
source_type: github
headline: Disable AMX-TF32 for Diamond Rapids processors
tldr: AMX-TF32 support is disabled for Diamond Rapids CPUs in GCC.
author: Haochen Jiang
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • i386
• cpu
• architecture
• disable
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/01c624024ca8938a207806d4f09c8764437aad97
date: 2026-07-01T00:00:00.000Z

GCC now disables AMX-TF32 support for processors codenamed ‘Diamond Rapids’. This change aligns with the Instruction Set Extension (ISE) documentation, which indicates that AMX-TF32 will not be present in these future processors. This prevents the compiler from generating code that targets an unavailable feature.