SPIRV-Cross/reference/shaders-msl/vulkan/comp/subgroups.nocompat.invalid.vk.msl21.ios.comp
Chip Davis 8983920edf Remove fallback for OpGroupNonUniformElect.
It's not safe to enable subgroup support without this actually working
correctly.
2019-05-16 13:42:09 -05:00

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#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct SSBO
{
float FragColor;
};
kernel void main0(device SSBO& _9 [[buffer(0)]], uint gl_NumSubgroups [[quadgroups_per_threadgroup]], uint gl_SubgroupID [[quadgroup_index_in_threadgroup]], uint gl_SubgroupSize [[thread_execution_width]], uint gl_SubgroupInvocationID [[thread_index_in_quadgroup]])
{
_9.FragColor = float(gl_NumSubgroups);
_9.FragColor = float(gl_SubgroupID);
_9.FragColor = float(gl_SubgroupSize);
_9.FragColor = float(gl_SubgroupInvocationID);
simdgroup_barrier(mem_flags::mem_device | mem_flags::mem_threadgroup | mem_flags::mem_texture);
simdgroup_barrier(mem_flags::mem_device | mem_flags::mem_threadgroup | mem_flags::mem_texture);
simdgroup_barrier(mem_flags::mem_device);
simdgroup_barrier(mem_flags::mem_threadgroup);
simdgroup_barrier(mem_flags::mem_texture);
uint shuffled = quad_shuffle(10u, 8u);
uint shuffled_xor = quad_shuffle_xor(30u, 8u);
uint shuffled_up = quad_shuffle_up(20u, 4u);
uint shuffled_down = quad_shuffle_down(20u, 4u);
float4 swap_horiz = quad_shuffle_xor(float4(20.0), 1u);
float4 swap_vertical = quad_shuffle_xor(float4(20.0), 2u);
float4 swap_diagonal = quad_shuffle_xor(float4(20.0), 3u);
float4 quad_broadcast0 = quad_broadcast(float4(20.0), 3u);
}