Updating SVN tree U gcc/doc/invoke.texi U gcc/tree-ssa-loop-im.c U gcc/DATESTAMP U gcc/builtins.c U gcc/ChangeLog A gcc/testsuite/gcc.dg/Wstringop-overflow-2.c U gcc/testsuite/ChangeLog U gcc/ira-color.c U gcc/config/microblaze/microblaze.c U libgfortran/ChangeLog Updated to revision 256683. Adjusting file timestamps