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libavutil: camellia: remove unwanted memory loads 

lavu       CAMELLIA     size: 1048576  runs:   1024  time:   21.549 +- 0.17

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Supraja Meedinti 2015-02-10 21:24:07 +05:30 committed by Michael Niedermayer
parent 7fc33dca39
commit 8d5a850119
1 changed files with 2 additions and 4 deletions
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6
libavutil/camellia.c
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@ -142,11 +142,9 @@ static void LR128(uint64_t d[2], const uint64_t K[2], int x)
static uint64_t F(uint64_t F_IN, uint64_t KE)
{
uint8_t y[8];
KE ^= F_IN;
AV_WB64(y,KE);
KE=SP[0][y[0]] ^ SP[1][y[1]] ^ SP[2][y[2]] ^ SP[3][y[3]] ^ SP[4][y[4]] ^ SP[5][y[5]] ^ SP[6][y[6]] ^ SP[7][y[7]];
return KE;
F_IN=SP[0][KE >> 56]^SP[1][(KE >> 48) & MASK8]^SP[2][(KE >> 40) & MASK8]^SP[3][(KE >> 32) & MASK8]^SP[4][(KE >> 24) & MASK8]^SP[5][(KE >> 16) & MASK8]^SP[6][(KE >> 8) & MASK8]^SP[7][KE & MASK8];
return F_IN;
}
static uint64_t FL(uint64_t FL_IN, uint64_t KE)