[Piglit] [PATCH] shaders: add test for bool casting of large integers.

[Dave Airlie]

On Wed, Oct 9, 2013 at 2:30 AM, Ian Romanick <idr at freedesktop.org> wrote:
> On 10/07/2013 04:22 PM, Dave Airlie wrote:
>> From: Dave Airlie <airlied at redhat.com>
>>
>> I noticed the TGSI convertor just does INEG then AND 0x3f800000, which works
>> for small values, but fails for larger ints.
>>
>> This seems to fail on nvidia (4.3.0 NVIDIA 325.15) and on ironlake with mesa
>> 9.2.
>
> If you repost the patch, could you CC Wen Su <wsu at nvidia.com>?
>
> Also, is there a bugzilla for this issue?

No there is only this lonely piglit test,
>> +[test]
>> +uniform int arg0 0x0ff00001
>
> This value seems magic.  Why did you pick that?  Are there other large
> values that should also be tested.

I don't think so my assumption was that everyone is doing -val & 0x3f800000
(at least thats what gallium does) so I wanted a value with some bits
sets in the same range and some other
bits set outside it, but really its as valid as any other magic value.

Dave.