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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/56607] [4.8/4.9 regression] GCC fails to warn on division by zero
Date: Fri, 22 Mar 2013 15:59:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56607

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-03-22 15:59:09 UTC ---
Author: jakub
Date: Fri Mar 22 15:54:37 2013
New Revision: 196973

URL: http://gcc.gnu.org/viewcvs?rev=196973&root=gcc&view=rev
Log:
    Backported from mainline
    2013-03-16  Jakub Jelinek  <jakub@redhat.com>

    PR c++/56607
    * typeck.c (cp_build_binary_op): When calling warn_for_div_by_zero,
    pass op1 through maybe_constant_value first.

    * g++.dg/warn/Wdiv-by-zero-2.C: New test.
    * c-c++-common/pr56607.c: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/c-c++-common/pr56607.c
    branches/gcc-4_8-branch/gcc/testsuite/g++.dg/warn/Wdiv-by-zero-2.C
Modified:
    branches/gcc-4_8-branch/gcc/cp/ChangeLog
    branches/gcc-4_8-branch/gcc/cp/typeck.c
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog