[Bug c++/58325] [4.7 Regression] Spurious unused-but-set-variable warning on delete[] of volatile pointer

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58325

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed May  7 16:03:49 2014
New Revision: 210172

URL: http://gcc.gnu.org/viewcvs?rev=210172&root=gcc&view=rev
Log:
    Backported from mainline
    2013-09-09  Jakub Jelinek  <ja...@redhat.com>

    PR c++/58325
    * init.c (build_vec_delete): Call mark_rvalue_use on base.

    * g++.dg/warn/Wunused-var-21.C: New test.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/g++.dg/warn/Wunused-var-21.C
Modified:
    branches/gcc-4_7-branch/gcc/cp/ChangeLog
    branches/gcc-4_7-branch/gcc/cp/init.c
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog