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Re: -fno-tree-cselim not working?
Richard Guenther writes:
> > This is legal POSIX threads code: counter is not accessed when we do
> > not hold the mutex. According to POSIX we do not have to declare
> > volatile memory that we only access when we hold a mutex.
> I hope we're not trying to support such w/o volatile counter.
I think we have to: not just for POSIX, but for the Linux kernel too.
> Whatever POSIX says, this would pessimize generic code too much.
We don't have to do it for non-threaded code.