https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92666
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Fri Dec 20 23:16:58 2019 New Revision: 279681 URL: https://gcc.gnu.org/viewcvs?rev=279681&root=gcc&view=rev Log: PR c++/92666 * call.c (convert_arg_to_ellipsis): For floating point or decltype(nullptr) arguments call mark_rvalue_use. * g++.dg/warn/Wunused-var-36.C: New test. Added: trunk/gcc/testsuite/g++.dg/warn/Wunused-var-36.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/call.c trunk/gcc/testsuite/ChangeLog