[PATCH] D11089: [NVPTX] declare no vector registers

[Jingyue Wu]

Makes sense. Thank you.

On Thu, Jul 9, 2015 at 4:33 PM, Justin Holewinski <jholewinski at nvidia.com>
wrote:

> jholewinski added a comment.
>
> The short answer is that ptxas doesn't handle vector registers very well.
> It may be good to revisit this, but ptxas currently prefers scalar ops.
>
> Last time I looked into this, the implementation cost greatly outweighed
> any potential benefits. At the SASS level, we don't have vector fp ops
> anyway.
>
>
> http://reviews.llvm.org/D11089
>
>
>
>
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