Landing: a6310d58aac5

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Project / Subsystem

gcc / lto.cc

Date

2026-09-10

Author

Tobias Burnus

Commit

a6310d58aac505bdea37a6a0d6ab6b9593d01259

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: lto.cc
patch_id: —
commit_hash: a6310d58aac505bdea37a6a0d6ab6b9593d01259
source_type: github
headline: Fix OpenMP offload link variables for global variables.
tldr: Correctly handles OpenMP 'link' clause variables for global variables in LTO builds, preventing duplicate declarations and ensuring host/device consistency.
author: Tobias Burnus
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • openmp
• lto
• offload
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/a6310d58aac505bdea37a6a0d6ab6b9593d01259
date: 2026-09-10T00:00:00.000Z

This commit addresses issues with OpenMP’s declare target directive when used with global variables in link clauses, specifically within the LTO (Link-Time Optimization) process. It prevents redundant creation of device-side pointer variables (...$linkptr) by checking for existing VALUE_EXPRs and ensures that host and device symbols are correctly finalized and outputted by calling varpool_node::finalize_decl and using force_output.