[Bug debug/31899] [4.2 Regression] -g and using declaration causing ICE in reference_to_unused

[rguenth at gcc dot gnu dot org]

------- Comment #14 from rguenth at gcc dot gnu dot org  2007-10-10 09:29 -------
Subject: Bug 31899

Author: rguenth
Date: Wed Oct 10 09:29:13 2007
New Revision: 129199

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129199
Log:
2007-10-10  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2007-10-03  Doug Kwan  <dougkwan@google.com>
                Richard Guenther  <rguenther@suse.de>

        PR debug/31899
        * dwarf2out.c (reference_to_unused): Disable sanity checking,
        be conservative instead.

        * g++.dg/debug/using3.C: New testcase.

Added:
    branches/gcc-4_2-branch/gcc/testsuite/g++.dg/debug/using3.C
      - copied unchanged from r128978,
trunk/gcc/testsuite/g++.dg/debug/using3.C
Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/dwarf2out.c
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31899