https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90451
--- Comment #11 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:c352ef0ed90cfc07d494dfec111121bc683e337b commit r12-7285-gc352ef0ed90cfc07d494dfec111121bc683e337b Author: Jason Merrill <ja...@redhat.com> Date: Wed Feb 16 14:05:39 2022 -0500 c++: avoid duplicate deprecated warning [PR90451] We were getting the deprecated warning twice for the same call because we called mark_used first in finish_qualified_id_expr and then again in build_over_call. Let's not call it the first time; C++17 clarified that a function is used only when it is selected from an overload set, which happens later. Then I had to add a few more uses in places that don't do anything further with the expression (convert_to_void, finish_decltype_type), and places that use the expression more unusually (cp_build_addr_expr_1, convert_nontype_argument). The new mark_single_function is mostly so that I only have to put the comment in one place. PR c++/90451 gcc/cp/ChangeLog: * decl2.cc (mark_single_function): New. * cp-tree.h: Declare it. * typeck.cc (cp_build_addr_expr_1): mark_used when making a PMF. * semantics.cc (finish_qualified_id_expr): Not here. (finish_id_expression_1): Or here. (finish_decltype_type): Call mark_single_function. * cvt.cc (convert_to_void): And here. * pt.cc (convert_nontype_argument): And here. * init.cc (build_offset_ref): Adjust assert. gcc/testsuite/ChangeLog: * g++.dg/warn/deprecated-14.C: New test. * g++.dg/warn/deprecated-15.C: New test.
