http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48722
--- Comment #1 from Pat Haugen <pthaugen at gcc dot gnu.org> 2011-04-25 20:47:52 UTC --- Created attachment 24095 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24095 reduced testcase Similar failure on powerpc64-linux when building cpu2006 benchmark 435.gromacs. > /home/pthaugen/install/gcc/trunk/bin/gcc -c -m64 -O2 -mcpu=power6 pdbio.c pdbio.c: In function ‘write_pdbfile_indexed’: pdbio.c:65:1: internal compiler error: in df_refs_verify, at df-scan.c:4267 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.