Landing: d566a83a7942
Project / Subsystem
gcc / c++/modules
Date
2026-04-27
Author
Patrick Palka
Commit
d566a83a79424ef6444960ae79bab90ed76ad8e2
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- c++/modules
- patch_id
- —
- commit_hash
- d566a83a79424ef6444960ae79bab90ed76ad8e2
- source_type
- github
- headline
- Defer completion of streamed-in cNTTPs in C++ modules
- tldr
- This commit defers the completion of streamed-in constant non-type template parameters (cNTTPs) in C++ modules to avoid lazy loading recursion.
- author
- Patrick Palka
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • c++
- • modules
- • templates
- • bugfix
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-04-27T00:00:00.000Z
This commit addresses a lazy loading recursion issue encountered when streaming in constant non-type template parameters (cNTTPs) in C++ modules. The issue arose because the class definition of involved template parameters might not have been streamed in yet. To resolve this, the commit defers calling cp_finish_decl for NTTP objects until after lazy loading has completed, mirroring the approach used for expand_or_defer_fn and constructors. This change ensures correct handling of cNTTPs in C++ modules.