[Bug c++/80896] [[nodiscard]] is ignored for functions returning references

[paolo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80896

--- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Thu Jun  1 10:20:27 2017
New Revision: 248784

URL: https://gcc.gnu.org/viewcvs?rev=248784&root=gcc&view=rev
Log:
/cp
2017-06-01  Paolo Carlini  <paolo.carl...@oracle.com>

        PR c++/80896
        * cvt.c (convert_to_void): Possibly call maybe_warn_nodiscard
        for case INDIRECT_REF too in the main switch.

/testsuite
2017-06-01  Paolo Carlini  <paolo.carl...@oracle.com>

        PR c++/80896
        * g++.dg/cpp1z/nodiscard5.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/cpp1z/nodiscard5.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cvt.c
    trunk/gcc/testsuite/ChangeLog