OpenACC support in 4.9

[Jeff Law]

On 05/06/2013 07:41 AM, Tobias Burnus wrote:
> Evgeny Gavrin wrote:
>> What do you think about support of OpenACC 1.0
>> (http://www.openacc-standard.org/) in gcc?
>
> I like the idea - though, I wonder whether OpenMP 4.0's "target"* would
> be the better choice as it looks a bit more flexible and better defined.
> (Conceptually, they are very similar; I think the
> middle-end/back-end/library part would even be the same.)
We're certainly hoping that OpenACC & OpenMP 4 & Cilk+ can share certain 
parts of their implementations.  We're already seeing OpenMP 4 and Cilk 
starting to converge on some stuff.

In a perfect world, there'd only be one standard for this stuff.  That's 
not likely, so I'd be happy with parsing/FE kinds of things being 
specific to each standard with everything from initial gimple generation 
through the optimizers being shared.  That may not ultimately be 
possible, but I think that's the right way to look at the work.

Jeff