gcc/gcc ChangeLog c-common.c c-common.h c-opts ...

[mmitchel@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2002-09-23 02:22:17

Modified files:
	gcc            : ChangeLog c-common.c c-common.h c-opts.c 
	gcc/cp         : ChangeLog class.c cp-tree.h 
	gcc/doc        : invoke.texi 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/abi: bitfield6.C bitfield7.C bitfield8.C 
	                          vbase11.C 

Log message:
	* c-common.c (flag_abi_version): New variable.
	* c-common.h (flag_abi_version): Declare it.
	* c-opts.c (missing_arg): Add -fabi-version.
	(c_common_decode_option): Process -fabi-version.
	* doc/invoke.texi (-fabi-version): Document it.
	(-Wabi): Add information about bit-fields in unions.
	
	* cp/class.c (layout_virtual_bases): Do not round the size of the
	type to a multiple of the alignment before laying out virtual bases.
	(layout_class_type): Correct handling of bit-fields that are wider
	than their type inside unions.  Round the size of the type to a
	even number of bytes when computing the size without virtual
	bases.
	* cp/cp-tree.h (abi_version_at_least): New macro.
	
	* g++.dg/abi/bitfield6.C: New test.
	* g++.dg/abi/bitfield7.C: New test.
	* g++.dg/abi/bitfield8.C: New test.
	* g++.dg/abi/vbase11.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.15516&r2=1.15517
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-common.c.diff?cvsroot=gcc&r1=1.382&r2=1.383
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-common.h.diff?cvsroot=gcc&r1=1.160&r2=1.161
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-opts.c.diff?cvsroot=gcc&r1=1.18&r2=1.19
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.2966&r2=1.2967
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/class.c.diff?cvsroot=gcc&r1=1.467&r2=1.468
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&r1=1.751&r2=1.752
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/invoke.texi.diff?cvsroot=gcc&r1=1.186&r2=1.187
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.2092&r2=1.2093
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/abi/bitfield6.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/abi/bitfield7.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/abi/bitfield8.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/abi/vbase11.C.diff?cvsroot=gcc&r1=NONE&r2=1.1