forked from radifier/radiator
/
bitslice_transformations_quad.cu
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bitslice_transformations_quad.cu
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#define merge8(z, x, y, b)\
z=__byte_perm(x, y, b); \
#define SWAP8(x,y)\
x=__byte_perm(x, y, 0x5410); \
y=__byte_perm(x, y, 0x7632);
#define SWAP4(x,y)\
t = 0xf0f0f0f0UL & (x ^ (y<<4)); \
x = (x ^ t); \
t= t>>4;\
y= y ^ t;
#ifndef NOASM
#define SWAP4_final(x,y)\
asm("and.b32 %0, %0, 0x0f0f0f0f;"\
"and.b32 %1, %1, 0x0f0f0f0f;"\
"vshl.u32.u32.u32.clamp.add %0, %1, 4, %0;\n\t"\
: "+r"(x) : "r"(y));
#else
#define SWAP4_final(x,y)\
t = 0xf0f0f0f0UL & (x ^ (y << 4)); \
x = (x ^ (0xf0f0f0f0UL & (x ^ (y << 4))));
#endif
#define SWAP2(x,y)\
t = 0xccccccccUL & (x ^ (y<<2)); \
x = (x ^ t); \
t= t>>2;\
y= y ^ t;
#define SWAP1(x,y)\
t = 0xaaaaaaaaUL & (x ^ (y<<1)); \
x = (x ^ t); \
t = t>>1;\
y = y ^ t;
static __device__ __forceinline__
void to_bitslice_quad(uint32_t *const __restrict__ input, uint32_t *const __restrict__ output)
{
uint32_t other[8];
uint32_t t;
const uint32_t perm = (threadIdx.x & 1) ? 0x7362 : 0x5140;
const unsigned int n = threadIdx.x & 3;
#pragma unroll
for(int i = 0; i < 4; i++)
{
input[i] = SHFL((int)input[i], n ^ (3 * (n >= 1 && n <= 2)), 4);
other[i] = SHFL((int)input[i], (threadIdx.x + 1) & 3, 4);
input[i] = SHFL((int)input[i], threadIdx.x & 2, 4);
other[i] = SHFL((int)other[i], threadIdx.x & 2, 4);
}
if((threadIdx.x & 3) < 2)
{
input[4] = 0x80;
}
else
{
input[4] = 0;
}
if((threadIdx.x & 3) > 1)
other[7] = 0x01000000;
else
other[7] = 0;
input[7] = 0;
merge8(output[0], input[0], input[4], perm);
merge8(output[1], other[0], 0, perm);
merge8(output[2], input[1], 0, perm);
merge8(output[3], other[1], 0, perm);
merge8(output[4], input[2], 0, perm);
merge8(output[5], other[2], 0, perm);
merge8(output[6], input[3], 0, perm);
merge8(output[7], other[3], other[7], perm);
SWAP1(output[0], output[1]);
SWAP1(output[2], output[3]);
SWAP1(output[4], output[5]);
SWAP1(output[6], output[7]);
SWAP2(output[0], output[2]);
SWAP2(output[1], output[3]);
SWAP2(output[4], output[6]);
SWAP2(output[5], output[7]);
SWAP4(output[0], output[4]);
SWAP4(output[1], output[5]);
SWAP4(output[2], output[6]);
SWAP4(output[3], output[7]);
}
static __device__ __forceinline__
void myr_to_bitslice_quad(uint32_t *const __restrict__ input, uint32_t *const __restrict__ output)
{
uint32_t other[8];
uint32_t t;
const uint32_t perm = (threadIdx.x & 1) ? 0x7362 : 0x5140;
const unsigned int n = threadIdx.x & 3;
#pragma unroll
for(int i = 0; i < 5; i++)
{
input[i] = SHFL((int)input[i], n ^ (3 * (n >= 1 && n <= 2)), 4);
other[i] = SHFL((int)input[i], (threadIdx.x + 1) & 3, 4);
input[i] = SHFL((int)input[i], threadIdx.x & 2, 4);
other[i] = SHFL((int)other[i], threadIdx.x & 2, 4);
}
if(n < 2)
{
input[5] = 0x80;
other[7] = 0;
}
else
{
input[5] = 0;
other[7] = 0x01000000;
}
merge8(output[0], input[0], input[4], perm);
merge8(output[1], other[0], other[4], perm);
merge8(output[2], input[1], input[5], perm);
output[3] = __byte_perm(other[1], 0, perm);
output[4] = __byte_perm(input[2], 0, perm);
output[5] = __byte_perm(other[2], 0, perm);
output[6] = __byte_perm(input[3], 0, perm);
merge8(output[7], other[3], other[7], perm);
SWAP1(output[0], output[1]);
SWAP1(output[2], output[3]);
SWAP1(output[4], output[5]);
SWAP1(output[6], output[7]);
SWAP2(output[0], output[2]);
SWAP2(output[1], output[3]);
SWAP2(output[4], output[6]);
SWAP2(output[5], output[7]);
SWAP4(output[0], output[4]);
SWAP4(output[1], output[5]);
SWAP4(output[2], output[6]);
SWAP4(output[3], output[7]);
}
static __device__ __forceinline__
void from_bitslice_quad(const uint32_t *const __restrict__ input, uint32_t *const __restrict__ output)
{
uint32_t t;
const uint32_t perm = 0x7531;//(threadIdx.x & 1) ? 0x3175 : 0x7531;
output[0] = __byte_perm(input[0], input[4], perm);
output[2] = __byte_perm(input[1], input[5], perm);
output[8] = __byte_perm(input[2], input[6], perm);
output[10] = __byte_perm(input[3], input[7], perm);
SWAP1(output[0], output[2]);
SWAP1(output[8], output[10]);
SWAP2(output[0], output[8]);
SWAP2(output[2], output[10]);
output[4] = __byte_perm(output[0], output[8], 0x5410);
output[8] = __byte_perm(output[0], output[8], 0x7632);
output[0] = output[4];
output[6] = __byte_perm(output[2], output[10], 0x5410);
output[10] = __byte_perm(output[2], output[10], 0x7632);
output[2] = output[6];
SWAP4(output[0], output[8]);
SWAP4(output[2], output[10]);
if(threadIdx.x & 1)
{
output[14] = __byte_perm(output[10], 0, 0x3232);
output[12] = __byte_perm(output[8], 0, 0x3232);
output[6] = __byte_perm(output[2], 0, 0x3232);
output[4] = __byte_perm(output[0], 0, 0x3232);
output[0] = __byte_perm(output[0], 0, 0x1032);
output[2] = __byte_perm(output[2], 0, 0x1032);
output[8] = __byte_perm(output[8], 0, 0x1032);
output[10] = __byte_perm(output[10], 0, 0x1032);
}
else
{
output[4] = output[0];
output[6] = output[2];
output[12] = output[8];
output[14] = output[10];
}
output[0] = __byte_perm(output[0], SHFL((int)output[0], (threadIdx.x + 1) & 3, 4), 0x7610);
output[2] = __byte_perm(output[2], SHFL((int)output[2], (threadIdx.x + 1) & 3, 4), 0x7610);
output[4] = __byte_perm(output[4], SHFL((int)output[4], (threadIdx.x + 1) & 3, 4), 0x7632);
output[6] = __byte_perm(output[6], SHFL((int)output[6], (threadIdx.x + 1) & 3, 4), 0x7632);
output[8] = __byte_perm(output[8], SHFL((int)output[8], (threadIdx.x + 1) & 3, 4), 0x7610);
output[10] = __byte_perm(output[10], SHFL((int)output[10], (threadIdx.x + 1) & 3, 4), 0x7610);
output[12] = __byte_perm(output[12], SHFL((int)output[12], (threadIdx.x + 1) & 3, 4), 0x7632);
output[14] = __byte_perm(output[14], SHFL((int)output[14], (threadIdx.x + 1) & 3, 4), 0x7632);
output[0 + 1] = SHFL((int)output[0], (threadIdx.x + 2) & 3, 4);
output[2 + 1] = SHFL((int)output[2], (threadIdx.x + 2) & 3, 4);
output[4 + 1] = SHFL((int)output[4], (threadIdx.x + 2) & 3, 4);
output[6 + 1] = SHFL((int)output[6], (threadIdx.x + 2) & 3, 4);
output[8 + 1] = SHFL((int)output[8], (threadIdx.x + 2) & 3, 4);
output[10 + 1] = SHFL((int)output[10], (threadIdx.x + 2) & 3, 4);
output[12 + 1] = SHFL((int)output[12], (threadIdx.x + 2) & 3, 4);
output[14 + 1] = SHFL((int)output[14], (threadIdx.x + 2) & 3, 4);
}
static __device__ __forceinline__
void from_bitslice_quad_final(const uint32_t *const __restrict__ input, uint32_t *const __restrict__ output)
{
uint32_t t;
const uint32_t perm = 0x7531;//(threadIdx.x & 1) ? 0x3175 : 0x7531;
output[0] = __byte_perm(input[0], input[4], perm);
output[2] = __byte_perm(input[1], input[5], perm);
output[8] = __byte_perm(input[2], input[6], perm);
output[10] = __byte_perm(input[3], input[7], perm);
SWAP1(output[0], output[2]);
SWAP1(output[8], output[10]);
SWAP2(output[2], output[10]);
output[6] = __byte_perm(output[2], output[10], 0x5410);
output[10] = __byte_perm(output[2], output[10], 0x7632);
if(threadIdx.x & 3)
{
SWAP4_final(output[6], output[10]);
output[6] = __byte_perm(output[6], 0, 0x3232);
}
else
{
output[2] = output[6];
SWAP4(output[2], output[10]);
if(threadIdx.x & 1)
{
output[6] = __byte_perm(output[2], 0, 0x3232);
}
else
{
output[6] = output[2];
}
}
output[6] = __byte_perm(output[6], SHFL((int)output[6], (threadIdx.x + 1) & 3, 4), 0x7632);
output[7] = SHFL((int)output[6], (threadIdx.x + 2) & 3, 4);
}