Upcoming GPU backend changes

[Deneau, Tom]

Doug --

It would be good if AMD could get access to this before it gets checked in
so we can give some feedback.  In particular, there are hsail-hardware based targets
which are not publicly available which we can test on.

-- Tom


> -----Original Message-----
> From: graal-dev-bounces at openjdk.java.net [mailto:graal-dev-
> bounces at openjdk.java.net] On Behalf Of Doug Simon
> Sent: Wednesday, January 22, 2014 2:24 PM
> To: sumatra-dev at openjdk.java.net; graal-dev at openjdk.java.net
> Subject: Upcoming GPU backend changes
> 
> Hi,
> 
> I've just created a JBS issue supporting multiple co-existing GPU
> backends: https://bugs.openjdk.java.net/browse/GRAAL-1
> 
> Prior to making the C++ changes need for this, I want to bring the HSAIL
> Java code more in alignment with the recently revised PTX backend.
> Namely:
> 
> 1. All compilation harness logic will be moved into HSAILHotSpotBackend
> (out of HSAILCompilationResult).
> 2. Create the equivalent of PTXWrapperBuilder for HSAIL. This is a
> generated stub that handles the transition from CPU to GPU and back. It
> also removes the need for the C++ HSAILKernelArguments class.
> 
> If you have any questions or concerns about this, please let me know
> asap. I'm happy to have a Skype call as well if that is desirable.
> 
> -Doug
> 
>