Updating SVN tree U gcc/doc/extend.texi U gcc/DATESTAMP U gcc/ChangeLog U gcc/config/i386/i386.h U gcc/config/i386/i386.md U gcc/config/i386/sse.md U gcc/config/i386/i386-builtin.def U gcc/config/i386/i386.c Updated to revision 251205. Adjusting file timestamps