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[Bug libstdc++/24975] Aliasing problems inside libstdc++
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 8 Dec 2005 11:24:17 -0000
- Subject: [Bug libstdc++/24975] Aliasing problems inside libstdc++
- References: <bug-24975-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #23 from rguenth at gcc dot gnu dot org 2005-12-08 11:24 -------
Subject: Bug 24975
Author: rguenth
Date: Thu Dec 8 11:24:07 2005
New Revision: 108226
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108226
Log:
2005-12-08 Richard Guenther <rguenther@suse.de>
Backport from mainline
2005-11-28 Richard Guenther <rguenther@suse.de>
* c-common.c (strict_aliasing_warning): Handle all
component-ref like accesses.
* gcc.dg/alias-9.c: New testcase.
* g++.dg/warn/Wstrict-aliasing-7.C: Likewise.
2005-11-24 Richard Guenther <rguenther@suse.de>
Dirk Mueller <dmueller@suse.de>
PR c++/14024
* c-common.h (strict_aliasing_warning): Declare.
* c-common.c (strict_aliasing_warning): New function,
split out from ...
* c-typeck.c (build_c_cast): ... here.
* typeck.c (build_reinterpret_cast_1): Use
strict_aliasing_warning.
* g++.dg/warn/Wstrict-aliasing-1.C: New testcase.
* g++.dg/warn/Wstrict-aliasing-2.C: Likewise.
* g++.dg/warn/Wstrict-aliasing-3.C: Likewise.
* g++.dg/warn/Wstrict-aliasing-4.C: Likewise.
* g++.dg/warn/Wstrict-aliasing-5.C: Likewise.
* g++.dg/warn/Wstrict-aliasing-6.C: Likewise.
2005-11-23 Paolo Carlini <pcarlini@suse.de>
PR libstdc++/24975 (basic_string)
* include/bits/basic_string.h (_Rep::_S_empty_rep): Avoid
strict-aliasing warnings.
Added:
branches/gcc-4_1-branch/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-1.C
branches/gcc-4_1-branch/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-2.C
branches/gcc-4_1-branch/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-3.C
branches/gcc-4_1-branch/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-4.C
branches/gcc-4_1-branch/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-5.C
branches/gcc-4_1-branch/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-6.C
branches/gcc-4_1-branch/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-7.C
branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/alias-9.c
Modified:
branches/gcc-4_1-branch/gcc/ChangeLog
branches/gcc-4_1-branch/gcc/c-common.c
branches/gcc-4_1-branch/gcc/c-common.h
branches/gcc-4_1-branch/gcc/c-typeck.c
branches/gcc-4_1-branch/gcc/cp/ChangeLog
branches/gcc-4_1-branch/gcc/cp/typeck.c
branches/gcc-4_1-branch/gcc/testsuite/ChangeLog
branches/gcc-4_1-branch/libstdc++-v3/ChangeLog
branches/gcc-4_1-branch/libstdc++-v3/include/bits/basic_string.h
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24975