http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45693
--- Comment #7 from Iain Sandoe <iains at gcc dot gnu.org> 2010-09-27 19:24:17 UTC --- (In reply to comment #6) > > As I recall, the patch was to circumvent a race condition - which manifest > > most > > frequently in the decision as to whether libgomp used TLS or not. > > I see no indications of this sort of problem here: before your patch, > TLS support was reliably/consistently detected to be missing, now it's > reliably found to be present. IIUC, comment #2 indicates that the platform should show as having (emulated) TLS. If that is so, the situation is that the problem you now see was masked by a faulty configure macro, fixed by the patch. I will try and dig out the test code we used to stress the TLS implementation - it might be worth running that on the alpha to see whether is shows a difference. (it's probably attached to 43170). IIRC the fix was quite heavily discussed on patches - there might be something useful in those threads.
