http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45865
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> 2010-10-09 13:06:13 UTC --- Created attachment 22006 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22006 A testcase for -fcompare-debug failure [...@gnu-6 gcc]$ ./xgcc -B./ -O2 -g -fcompare-debug foo.i -S -m32 xgcc: error: foo.i: -fcompare-debug failure (length) [...@gnu-6 gcc]$