[Bug 111241] Shadertoy shader causing hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111241

--- Comment #11 from Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com> ---
(In reply to Dieter Nützel from comment #8)
> BTW
> 
> Pierre-Eric can you look into this
> 
> Shadertoy shader corruption, too?
> https://www.shadertoy.com/view/Xt3cWS
>

The "Buffer A" shader doesn't write fragColor when uv.y is < 0.1 or > 0.9.

So the content is undefined and may be black on some platform or random.

radeonsi is correct here, but we might want to replace undef values with 0x0 to
get a default value instead of random.

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