[Bug c++/71448] pointer relational comparison fails inside constant expression

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71448

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Jun 14 14:43:42 2016
New Revision: 237447

URL: https://gcc.gnu.org/viewcvs?rev=237447&root=gcc&view=rev
Log:
        Backported from mainline
        2016-06-08  Jakub Jelinek  <jakub@redhat.com>
                    Richard Biener  <rguenther@suse.de>

        PR c++/71448
        * fold-const.c (fold_comparison): Handle CONSTANT_CLASS_P (base0)
        the same as DECL_P (base0) for indirect_base0.  Use equality_code
        in one further place.

        * g++.dg/torture/pr71448.C: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr71448.C
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/fold-const.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog