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

jakub at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Mon Nov 12 19:37:00 GMT 2007



------- Comment #2 from jakub at gcc dot gnu dot org  2007-11-12 19:37 -------
I'm not sure we should do anything about this.
We have a warning if the compiler can detect non-positive value at compile
time,
but we certainly can't ever issue any diagnostic at runtime for num_threads
0 (because the implementation uses that value to mean no num_threads clause was
present) and I'm not convinced the runtime library needs to be verbose to
stderr.  So e.g. silently assuming just one thread is IMHO better than doing
gomp_fatal in there.  You shouldn't expect any particular behavior from program
which triggers undefined behavior.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
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                 CC|                            |rth at gcc dot gnu dot org


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



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