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eliminate extra copy

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orignal 2017-05-08 11:39:40 -04:00
parent 3f543538a1
commit 54b898cb78
1 changed files with 8 additions and 6 deletions
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14
gost/cuda_gosthash.cu
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@ -684,20 +684,22 @@ static void GOST_F(uint64_t* state)
__device__
static void GOST_E12(uint64_t* K, uint64_t *state)
static void GOST_E12(uint64_t* const K, uint64_t *state)
{
uint64_t state1[8], K1[8];
GOST_Copy512(K1, K);
//#pragma unroll 1
for(int i=0; i<12; i++)
{
GOST_F(state);
GOST_Xor512(K, K, CC[i]);
GOST_F(K);
GOST_Xor512(state, state, K);
GOST_FS(state, state1);
GOST_Xor512(K, K1, CC[i]);
GOST_FS(K, K1);
GOST_Xor512(state, state1, K1);
}
}
__device__
void GOST_E(uint64_t* K, uint64_t* const m, uint64_t *state /* out only */)
void GOST_E(uint64_t* const K, uint64_t* const m, uint64_t *state /* out only */)
{
GOST_Xor512(state, m, K); // state = m ^ K
GOST_E12(K, state);