[LLVMdev] RFC: Atomics.h

[Owen Anderson]

Surprisingly enough, libatomic_ops doesn't define just a hardware  
memory fence call as far as I can tell.

--Owen

On May 16, 2009, at 3:00 PM, Zoltan Varga wrote:

> Hi,
>
>   You might want to use this:
>
> http://www.hpl.hp.com/research/linux/atomic_ops/
>
>                              Zoltan
>
> On Sat, May 16, 2009 at 11:11 PM, Owen Anderson <resistor at mac.com>  
> wrote:
> Some of you may have noticed that I addedd include/llvm/System/ 
> Atomics.h to the repository briefly, which will be used for adding  
> support for threading in LLVM.
>
> I have tried to provided appropriate implementations of the atomic  
> ops (currently memory fence and CAS) for platforms we care about,  
> but my knowledge of these, and my ability to test them, is limited.   
> So, please, if you run on any less common platform, test out the  
> file, and send me patches to improve it if it doesn't work verbatim  
> on your system.
>
> Thanks,
>
> --Owen
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