webrev for hsail atomicexch support

[Christian Thalinger]

On Apr 23, 2014, at 7:16 AM, Deneau, Tom <tom.deneau at amd.com> wrote:

> Earlier this week I was helping Christian by looking into some hsail problems that arose from his AtomicReadAndAdd and AtomicReadAndWrite nodes.  One of the problems turned out to be a bug in the hsail simulator for the hsail atomic_exch instruction which AtomicReadAndWrite nodes would emit.

Oh.  That explains the intermittent failures you saw.  Thanks for fixing this.

>  I have uploaded an okra-1.9-with-sim.jar which has this problem fixed.  And the following webrev for graal specifies the use of okra-1.9.
> 
>     http://cr.openjdk.java.net/~tdeneau/graal-webrevs/webrev-hsail-atomicexch-support/webrev
> 
> In addition,
> 
> *         added support for handling AtomicReadAndWrite node in hsail backend.  I had given these to Christian earlier but we didn't include it when the test that used it, AtomicRefernceGetAndSetTest, still did not pass.
> 
> *         Re-enabled the junit test AtomicRefernceGetAndSetTest, it had been turned off when we saw these problems.
> 
> *         added a couple of other GetAndSet tests for Int and Long.
> 
> *         added comments to @Ignore annotation in a few other tests.
> 
> -- Tom
> 
>