File: fs-large-local-array.vk_shader_test

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# Tests a large uint local array.
# Vulkan equivalent to tests/spec/glsl-1.30/execution/fs-large-local-array.shader_test
# And quoting from that test:
#
#    "Test correct handling of local-scope declared arrays large enough to
#     typically not fit into first level GPU memory such as its register file,
#     requiring storing/loading to some device-specific scratch space.
#
#     One hardware example is R600 where arrays larger than 124*vec4 cannot
#     fit into its GPR register file and has to be spilled to scratch memory.
#     As of 2017-03-06 this is the largest known register file of any GPU, so
#     the test uses that as a size to guarantee some form of spilling on any GPU."

[require]

[vertex shader passthrough]

[fragment shader]
#version 450

layout (binding = 5) uniform block {
       uint i;
};

layout (location = 0) out vec4 out_color;

void main()
{
	uint A[130];
        A[20] = 0u;
	A[i] = 37u;
        out_color.rba = vec3(0.0, 0.0, 1.0);
	out_color.g = float(A[20] == 37u);
}

[test]
clear color 1.0 0.0 0.0 1.0
clear

ubo 5 subdata uint 0 19
draw rect -1 -1 2 2
probe all rgba 0.0 0.0 0.0 1.0

clear
ubo 5 subdata uint 0 20
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0