------- Comment #2 from rguenth at gcc dot gnu dot org 2008-05-02 12:46 ------- The vectorizer doesn't know to vectorize __builtin_cexpi or {REAL,IMAG}PART_EXPR either.
IMHO rather than somehow tweaking the early unroller the vectorizer should know how to deal with complex types. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36099