[Mesa-dev] [PATCH] radv/ac: set no signed zero fp math on radv

[Roland Mainz]

On Tue, Apr 25, 2017 at 9:42 PM, Bas Nieuwenhuizen
<bas at basnieuwenhuizen.nl> wrote:
> The Vulkan spec has
>
> " Positive and negative infinities and positive and negative zeros are
> generated as dictated by IEEE
> 754, but subject to the precisions allowed in the following table."
>
> Sounds like we may need signed zero?

Yes, usually you need it, for example in cases where you want to
determinate from which direction something "folded" to zero.

----

Bye,
Roland

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