http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50564
--- Comment #6 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-10-09 16:14:43 UTC --- (In reply to comment #5) > one has a problem as "tmp" is shared. Thus, one needs to make sure that all > inserted temporary variables are thread private (DECL_THREAD_LOCAL_P). Actually, it probably works as one declares "tmp" as BLOCK in the DO loop, which presumably generates a thread-private variable.