SPIRV-Cross/reference/opt/shaders-msl/comp/shared.comp
Hans-Kristian Arntzen d1479f871a MSL: Do not generate UnsafeArray<> for any array inside buffer objects.
This avoids a lot of huge code changes.
Arrays generally cannot be copied in and out of buffers, at least no
compiler frontend seems to do it.

Also avoids a lot of issues surrounding packed vectors and matrices.
2019-10-24 12:22:30 +02:00

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#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct SSBO
{
float in_data[1];
};
struct SSBO2
{
float out_data[1];
};
constant uint3 gl_WorkGroupSize [[maybe_unused]] = uint3(4u, 1u, 1u);
kernel void main0(const device SSBO& _22 [[buffer(0)]], device SSBO2& _44 [[buffer(1)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]], uint gl_LocalInvocationIndex [[thread_index_in_threadgroup]])
{
threadgroup float sShared[4];
sShared[gl_LocalInvocationIndex] = _22.in_data[gl_GlobalInvocationID.x];
threadgroup_barrier(mem_flags::mem_threadgroup);
_44.out_data[gl_GlobalInvocationID.x] = sShared[3u - gl_LocalInvocationIndex];
}