https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90546
--- Comment #7 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:14e320dbc10cc796fd7ca0b6c44e0c9ac0901da9 commit r10-6300-g14e320dbc10cc796fd7ca0b6c44e0c9ac0901da9 Author: Jason Merrill <ja...@redhat.com> Date: Tue Jan 28 12:26:10 2020 -0500 c++: Allow template rvalue-ref conv to bind to lvalue ref. When I implemented the [over.match.ref] rule that a reference conversion function needs to match l/rvalue of the target reference type it changed our handling of this testcase. It seems to me that our current behavior is what the standard says, but it doesn't seem desirable, and all the other compilers have our old behavior. So let's limit the change to non-templates until there's some clarification from the committee. PR c++/90546 * call.c (build_user_type_conversion_1): Allow a template conversion returning an rvalue reference to bind directly to an lvalue.
