https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108116
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Patrick Palka <ppa...@gcc.gnu.org>: https://gcc.gnu.org/g:cf59c8983ef6590f0d69014f8dc8778b5b7691c6 commit r13-4879-gcf59c8983ef6590f0d69014f8dc8778b5b7691c6 Author: Patrick Palka <ppa...@redhat.com> Date: Fri Dec 23 11:17:45 2022 -0500 c++: get_nsdmi in template context [PR108116] Here during ahead of time checking of C{}, we indirectly call get_nsdmi for C::m from finish_compound_literal, which in turn calls break_out_target_exprs for C::m's (non-templated) initializer, during which we build a call to A::~A and check expr_noexcept_p for it (from build_vec_delete_1). But this is all done with processing_template_decl set, so the built A::~A call is templated (whose form was recently changed by r12-6897-gdec8d0e5fa00ceb2) which expr_noexcept_p doesn't expect, and we crash. This patch fixes this by clearing processing_template_decl before the call to break_out_target_exprs from get_nsdmi. And since it more generally seems we shouldn't be seeing (or producing) non-templated trees in break_out_target_exprs, this patch also adds an assert to that effect. PR c++/108116 gcc/cp/ChangeLog: * constexpr.cc (maybe_constant_value): Clear processing_template_decl before calling break_out_target_exprs. * init.cc (get_nsdmi): Likewise. * tree.cc (break_out_target_exprs): Assert processing_template_decl is cleared. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/nsdmi-template24.C: New test.
