[Bug 94182] Vulkan: LunarG's Hologram demo hits an assert

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94182

--- Comment #1 from jackoalan at gmail.com ---
I can confirm the same assert failure on Haswell.

I've also found a workaround that could point to the root cause.

================ CRASH ====================
#version 310 es

precision highp float;

in vec3 color;

layout(location = 0) out vec4 fragcolor;

void main()
{
    fragcolor = vec4(color, 0.5);
}
===========================================

============== NO CRASH ===================
#version 310 es

precision highp float;

in vec4 color;

layout(location = 0) out vec4 fragcolor;

void main()
{
    fragcolor = vec4(color.xyz, 0.5);
}
===========================================

Something about a non-vec4 input upsets the compiler. The same crash happens
for vec2.

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