[Bug c++/92992] Side-effects dropped when decltype(nullptr) typed expression is passed to ellipsis

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92992

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Dec 20 23:15:52 2019
New Revision: 279680

URL: https://gcc.gnu.org/viewcvs?rev=279680&root=gcc&view=rev
Log:
        PR c++/92992
        * call.c (convert_arg_to_ellipsis): For decltype(nullptr) arguments
        that have side-effects use cp_build_compound_expr.

        * g++.dg/cpp0x/nullptr45.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/nullptr45.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/testsuite/ChangeLog