shaders-msl/comp/threadgroup-boolean-workaround.comp

#version 450
layout(local_size_x = 4) in;

shared bvec4 foo[4];

layout(binding = 0) buffer SSBO
{
	vec4 values[];
};

void in_function()
{
	foo[gl_LocalInvocationIndex] = notEqual(values[gl_GlobalInvocationID.x], vec4(10.0));
	barrier();
	values[gl_GlobalInvocationID.x] = mix(vec4(40.0), vec4(30.0), foo[gl_LocalInvocationIndex ^ 3]);
}

void main()
{
	in_function();
}