PATCH: fix clang to emit correct addrspacecast for CUDA

[Justin Holewinski]

On 03/24/2014 03:22 PM, Matt Arsenault wrote:
> On 03/24/2014 11:46 AM, Justin Holewinski wrote:
>>   Of course, this also assumes address space 0 is generic.  This is
>> currently true for the in-tree targets and CUDA/OpenCL support in
>> Clang, but I don't believe its a set rule anywhere.
> R600 wants this optimization, except the "generic" address space isn't
> 0, and is instead some other currently undefined number.

Sounds like good justification for making this a target-independent 
pass, then.

Jingyue, is there anything in clang now that would prevent the generic 
address space from being a number other than 0?

>
> -Matt
>


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