SPIRV-Cross/reference/opt/shaders-msl/comp/dowhile.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
{
float4x4 mvp;
float4 in_data[1];
};
struct SSBO2
{
float4 out_data[1];
};
constant uint3 gl_WorkGroupSize [[maybe_unused]] = uint3(1u);
kernel void main0(const device SSBO& _28 [[buffer(0)]], device SSBO2& _52 [[buffer(1)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]])
{
float4 _59;
int _60;
_60 = 0;
_59 = _28.in_data[gl_GlobalInvocationID.x];
float4 _42;
for (;;)
{
_42 = _28.mvp * _59;
int _44 = _60 + 1;
if (_44 < 16)
{
_60 = _44;
_59 = _42;
}
else
{
break;
}
}
_52.out_data[gl_GlobalInvocationID.x] = _42;
}