[dataflow]: PATCH COMMITTED to make arm-elf work.

[Richard Earnshaw]

On Fri, 2007-02-02 at 12:03 -0500, Kenneth Zadeck wrote:
> Richard Earnshaw wrote:
> > I think the docs say that any asm with no inputs or outputs is treated
> > as volatile; however, I think this is handled in the front-ends (and
> > they thus become volatile before the middle-end sees it).
> >
> > R.
> >
> >   
> If that is true, then all is well.  What does not work is that if the
> back end(s) generate a asm_input and just expect that the volatile fairy
> is going to magically confer volatile on them as was done in the three
> places that we changed to gen_blockage. 

Agreed.  That would be a straight bug in the backend.

R.