[RFC] Do not consider volatile asms as optimization barriers #1

[Eric Botcazou]

> That doesn't really answer the question though.  What's the correct
> behaviour for an unspec volatile in a loop?  I don't think it's what
> we did in the example above, since it doesn't seem self-consistent.
> And "not spending too much time" is again a bit vague in terms of
> saying what's right and what's wrong.

"not spending too much time" is a polite way to say I don't really care. :-)
If you do, feel free to post a formal definition, a implementation plan and 
maybe a patch at some point.

-- 
Eric Botcazou