[Bug libgomp/33720] A negative value in OpenMP clause num_threads is not detected at runtime

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33720

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I still believe it is not needed to slow down the runtime library with checks
for invalid programs.  Negative num_threads is undefined behavior, just don't
do it.