Landing: 1b839ec55be7

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Project / Subsystem

gcc / gccrs

Date

2026-07-21

Author

Yap Zhi Heng

Commit

1b839ec55be7b93beb0118da19c267a0c4d3fcb9

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gccrs
patch_id: —
commit_hash: 1b839ec55be7b93beb0118da19c267a0c4d3fcb9
source_type: github
headline: Small fixes for #[repr(transparent)] and ZST array edge case
tldr: GCC Rust compiler improves error message for #[repr(transparent)] and handles ZST array edge case.
author: Yap Zhi Heng
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • gccrs
• rust
• repr(transparent)
• typecheck
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/1b839ec55be7b93beb0118da19c267a0c4d3fcb9
date: 2026-07-21T00:00:00.000Z

This commit includes minor corrections for the #[repr(transparent)] attribute in the GCC Rust compiler. It updates an error message (E0690) to use the correct variable for the number of fields in a struct. Additionally, it addresses an edge case in ArrayType::is_zero_sized where an array’s element type could be a zero-sized type (ZST) with a non-zero capacity, preventing incorrect size calculation.