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

#include <metal_stdlib>
#include <simd/simd.h>

using namespace metal;

struct SSBO
{
    float4 values[1];
};

constant uint3 gl_WorkGroupSize [[maybe_unused]] = uint3(4u, 1u, 1u);

kernel void main0(device SSBO& _23 [[buffer(0)]], uint gl_LocalInvocationIndex [[thread_index_in_threadgroup]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]])
{
    threadgroup short4 foo[4];
    foo[gl_LocalInvocationIndex] = short4((isunordered(_23.values[gl_GlobalInvocationID.x], float4(10.0)) || _23.values[gl_GlobalInvocationID.x] != float4(10.0)));
    threadgroup_barrier(mem_flags::mem_threadgroup);
    _23.values[gl_GlobalInvocationID.x] = select(float4(40.0), float4(30.0), bool4(foo[gl_LocalInvocationIndex ^ 3u]));
}