https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105322
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Nathan Sidwell <nat...@gcc.gnu.org>: https://gcc.gnu.org/g:084addf8a700fab9222d4127ab8524920d0ca481 commit r14-4806-g084addf8a700fab9222d4127ab8524920d0ca481 Author: Nathan Sidwell <nat...@acm.org> Date: Fri Oct 20 12:20:37 2023 -0400 c++: Constructor streaming [PR105322] An expresion node's type is streamed after the expression's operands, because the type can come from some aspect of an operand (for instance decltype and noexcept). There's a comment in the code explaining that. But that doesn't work for constructors, which can directly reference components of their type (eg FIELD_DECLS). If this is a type-introducing CONSTRUCTOR, we need to ensure the type has been streamed first. So move CONSTRUCTOR stream to after the type streaming. The reason things like COMPONENT_REF work is that they stream their first operand first, and that introduces the type that their second operand looks up a field in. gcc/cp/ PR c++/105322 * module.cc (trees_out::core_vals): Stream CONSTRUCTOR operands after the type. (trees_in::core_vals): Likewise. gcc/testsuite/ * g++.dg/modules/decltype-1_a.C: New. * g++.dg/modules/decltype-1_b.C: New. * g++.dg/modules/lambda-5_a.C: New. * g++.dg/modules/lambda-5_b.C: New.
