8e7312e12
Denys Vlasenko
2013-01-15
Subject
sha3: tweak choice of a fast code path for 64-bit
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libbb/hash_md5_sha.c+2 -1
| @@ -1057,7 +1057,7 @@ static void KeccakF(uint64_t *state) | |
| /* Chi */ | |
| for (y = 0; y <= 20; y += 5) { | |
| - | if (SHA3_SMALL) { |
| + | if (SHA3_SMALL && !ARCH_IS_64BIT) { |
| uint64_t BC[5]; | |
| BC[0] = state[y + 0]; | |
| BC[1] = state[y + 1]; | |
| @@ -1071,6 +1071,7 @@ static void KeccakF(uint64_t *state) | |
| } | |
| } else { | |
| /* 32-bit x86: +50 bytes code, 10% faster */ | |
| + | /* 64-bit x86: ~same code size, 30% faster */ |
| uint64_t BC0, BC1, BC2, BC3, BC4; | |
| BC0 = state[y + 0]; | |
| BC1 = state[y + 1]; | |