https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92654
--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:1e042b396e2a84e3ee17bc52def1bf241cb7d248 commit r10-6517-g1e042b396e2a84e3ee17bc52def1bf241cb7d248 Author: Jason Merrill <ja...@redhat.com> Date: Fri Feb 7 10:31:30 2020 -0500 c++: Fix use of local in constexpr if. extract_local_specs wasn't finding the mention of 'an' as a template argument because we weren't walking into template arguments. So here I changed cp_walk_subtrees to do so--only walking into template arguments in the spelling of the type or expression, not any hidden behind typedefs. The change to use typedef_variant_p avoids looking through typedefs spelled with 'typedef' as well as those spelled with 'using'. And then I removed some now-redundant code for walking into template arguments in a couple of walk_tree callbacks. PR c++/92654 * tree.c (cp_walk_subtrees): Walk into type template arguments. * cp-tree.h (TYPE_TEMPLATE_INFO_MAYBE_ALIAS): Use typedef_variant_p instead of TYPE_ALIAS_P. * pt.c (push_template_decl_real): Likewise. (find_parameter_packs_r): Likewise. Remove dead code. * error.c (find_typenames_r): Remove dead code.
