Landing: 1fe3817daa73

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Project / Subsystem

gcc / gccrs

Date

2026-06-29

Author

Philip Herron

Commit

1fe3817daa73c8eba1180edccbca9b29a74e12af

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gccrs
patch_id: —
commit_hash: 1fe3817daa73c8eba1180edccbca9b29a74e12af
source_type: github
headline: gccrs: Fix unify code on ADT's to check defid
tldr: Optimizes ADT unification by checking def-ids upfront in gccrs.
author: Philip Herron
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • gccrs
• typechecking
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/1fe3817daa73c8eba1180edccbca9b29a74e12af
date: 2026-06-29T00:00:00.000Z

This change introduces an upfront check in gccrs to verify that definition IDs match before attempting to unify ADTs. This optimization prevents unnecessary unification work by failing early if the IDs do not align.