http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49190
--- Comment #8 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-05-28 20:42:16 UTC --- This also caused all the ICE on regress (ppc-darwin9, see http://gcc.gnu.org/ml/gcc-testresults/2011-05/msg03217.html ).