Landing: a99c41f91dde

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Project / Subsystem

gcc / gccrs

Date

2026-06-24

Author

Lishin

Commit

a99c41f91ddedd84f8c3309a907a3d2a7f571ed9

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gccrs
patch_id: —
commit_hash: a99c41f91ddedd84f8c3309a907a3d2a7f571ed9
source_type: github
headline: Emit drops before explicit returns in GCC Rust
tldr: Ensures proper resource cleanup when explicit return statements are used in Rust code.
author: Lishin
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • gccrs
• rust
• drops
• codegen
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/a99c41f91ddedd84f8c3309a907a3d2a7f571ed9
date: 2026-06-24T00:00:00.000Z

This commit ensures that destructors are correctly emitted for all active block scopes before an explicit return statement is executed in the GCC Rust compiler. If the explicit return has a value, it is saved before drops are performed. For unit returns with an expression, that expression is evaluated and its result handled before drops and the final unit return.