https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86521
--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> --- Author: jason Date: Wed Mar 13 23:34:51 2019 New Revision: 269667 URL: https://gcc.gnu.org/viewcvs?rev=269667&root=gcc&view=rev Log: PR c++/86521 - C++17 copy elision in initialization by constructor. This is an overlooked case in C++17 mandatory copy elision: We want overload resolution to reflect that initializing an object from a prvalue does not involve a copy or move constructor even when [over.match.ctor] says that only constructors are candidates. Here I implement that by looking through the copy/move constructor in joust. * call.c (joust_maybe_elide_copy): New. (joust): Call it. Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/call.c trunk/gcc/testsuite/g++.dg/cpp0x/overload-conv-3.C trunk/gcc/testsuite/g++.dg/overload/conv-op2.C
