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r108226 - in /branches/gcc-4_1-branch: gcc/Chan...


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


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