Gradients are broken with glamor when RepeatReflect is set

[Clemens Eisserer]

Hi,

Great to see movement regading this issue.

> It's broken with llvmpipe/softpipe as well. Does it render correctly
> with glamor on i965? If so, maybe it's a Gallium non-driver issue.

Glamor on Intel Gen5 (Arrendale) procudes results consistent with
radeonsi/llvmpipe.
So it seems the shader is the culprit.

Best regards, Clemens