http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50343
--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> 2011-09-10 17:29:45 UTC --- With SPEC CPU 2006, I got 456.hmmer: histogram.c: In function 'Lawless416': histogram.c:1028:1: internal compiler error: tree check: expected ssa_name, have real_cst in vect_recog_dot_prod_pattern, at tree-vect-patterns.c:261 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. specmake[3]: *** [histogram.o] Error 1 435.gromacs: princ.c: In function 'calc_xcm': princ.c:189:6: internal compiler error: tree check: expected ssa_name, have real_cst in vect_recog_dot_prod_pattern, at tree-vect-patterns.c:261 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. specmake[3]: *** [princ.o] Error 1