https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108055
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Iain Buclaw <ibuc...@gcc.gnu.org>: https://gcc.gnu.org/g:3b8b42f32627ca5ad029fe418a5839b9fc4512e9 commit r12-8980-g3b8b42f32627ca5ad029fe418a5839b9fc4512e9 Author: Iain Buclaw <ibuc...@gdcproject.org> Date: Sat Dec 10 22:11:41 2022 +0100 d: Fix undefined reference to nested lambda in template (PR108055) Sometimes, nested lambdas of templated functions get no code generation due to them being marked as instantianted outside of all modules being compiled in the current compilation unit. This despite enclosing template instances being marked as instantiated inside the current compilation unit. To fix, all enclosing templates are now checked in `function_defined_in_root_p'. Because of this change, `function_needs_inline_definition_p' has also been fixed up to only check whether the regular function definition itself is to be emitted in the current compilation unit. PR d/108055 gcc/d/ChangeLog: * decl.cc (function_defined_in_root_p): Check all enclosing template instances for definition in a root module. (function_needs_inline_definition_p): Replace call to function_defined_in_root_p with test for outer module `isRoot'. gcc/testsuite/ChangeLog: * gdc.dg/torture/imports/pr108055conv.d: New. * gdc.dg/torture/imports/pr108055spec.d: New. * gdc.dg/torture/imports/pr108055write.d: New. * gdc.dg/torture/pr108055.d: New test. (cherry picked from commit 9fe7d3debbf60ed9fef8053123ad542a99d62100)
