Landing: 9bfc05c8a91f

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Project / Subsystem

gcc / aarch64

Date

2026-07-01

Author

Karl Meakin

Commit

9bfc05c8a91f3f89d579afa3a79cce1c0da34184

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: aarch64
patch_id: —
commit_hash: 9bfc05c8a91f3f89d579afa3a79cce1c0da34184
source_type: github
headline: Relax type-checking for aarch64 NEON builtins
tldr: Fixes an assertion failure in aarch64 NEON builtins by using a more robust type comparison.
author: Karl Meakin
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • aarch64
• neon
• builtins
• typedef
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/9bfc05c8a91f3f89d579afa3a79cce1c0da34184
date: 2026-07-01T00:00:00.000Z

This commit addresses an assertion failure in the aarch64 NEON builtins related to type checking. The issue occurred when comparing arg_type with TREE_TYPE(b) by pointer address, which failed if one type was a typedef for another (e.g., uint32x2_t and __Uint32x2_t). The fix replaces the strict pointer comparison with types_compatible_p, providing a more lenient and correct type comparison.