SPIRV-Cross/reference/shaders-msl-no-opt/comp/array-copy-threadgroup-memory.comp
2019-09-24 14:35:25 -04:00

119 lines
2.9 KiB
Plaintext

#pragma clang diagnostic ignored "-Wmissing-prototypes"
#pragma clang diagnostic ignored "-Wmissing-braces"
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
template<typename T, size_t Num>
struct spvUnsafeArray
{
T elements[Num ? Num : 1];
thread T& operator [] (size_t pos) thread
{
return elements[pos];
}
constexpr const thread T& operator [] (size_t pos) const thread
{
return elements[pos];
}
device T& operator [] (size_t pos) device
{
return elements[pos];
}
constexpr const device T& operator [] (size_t pos) const device
{
return elements[pos];
}
constexpr const constant T& operator [] (size_t pos) const constant
{
return elements[pos];
}
threadgroup T& operator [] (size_t pos) threadgroup
{
return elements[pos];
}
constexpr const threadgroup T& operator [] (size_t pos) const threadgroup
{
return elements[pos];
}
};
constant uint3 gl_WorkGroupSize [[maybe_unused]] = uint3(8u, 1u, 1u);
template<typename T, uint A>
inline void spvArrayCopyFromConstantToStack1(thread T (&dst)[A], constant T (&src)[A])
{
for (uint i = 0; i < A; i++)
{
dst[i] = src[i];
}
}
template<typename T, uint A>
inline void spvArrayCopyFromConstantToThreadGroup1(threadgroup T (&dst)[A], constant T (&src)[A])
{
for (uint i = 0; i < A; i++)
{
dst[i] = src[i];
}
}
template<typename T, uint A>
inline void spvArrayCopyFromStackToStack1(thread T (&dst)[A], thread const T (&src)[A])
{
for (uint i = 0; i < A; i++)
{
dst[i] = src[i];
}
}
template<typename T, uint A>
inline void spvArrayCopyFromStackToThreadGroup1(threadgroup T (&dst)[A], thread const T (&src)[A])
{
for (uint i = 0; i < A; i++)
{
dst[i] = src[i];
}
}
template<typename T, uint A>
inline void spvArrayCopyFromThreadGroupToStack1(thread T (&dst)[A], threadgroup const T (&src)[A])
{
for (uint i = 0; i < A; i++)
{
dst[i] = src[i];
}
}
template<typename T, uint A>
inline void spvArrayCopyFromThreadGroupToThreadGroup1(threadgroup T (&dst)[A], threadgroup const T (&src)[A])
{
for (uint i = 0; i < A; i++)
{
dst[i] = src[i];
}
}
kernel void main0(uint gl_LocalInvocationIndex [[thread_index_in_threadgroup]])
{
threadgroup float shared_group[8][8];
threadgroup float shared_group_alt[8][8];
spvUnsafeArray<float, 8> blob;
for (int i = 0; i < 8; i++)
{
blob[i] = float(i);
}
spvArrayCopyFromStackToThreadGroup1(shared_group[gl_LocalInvocationIndex], blob.elements);
threadgroup_barrier(mem_flags::mem_threadgroup);
spvUnsafeArray<float, 8> copied_blob;
spvArrayCopyFromThreadGroupToStack1(copied_blob.elements, shared_group[gl_LocalInvocationIndex ^ 1u]);
spvArrayCopyFromThreadGroupToThreadGroup1(shared_group_alt[gl_LocalInvocationIndex], shared_group[gl_LocalInvocationIndex]);
}