grassrootseconomics/openethereum
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Unroll 1 more loop

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This commit is contained in:
Vurich 2017-07-19 16:21:55 +02:00
parent 7d35f994d2
commit ad1835e87c
1 changed files with 6 additions and 2 deletions
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8
ethash/src/compute.rs
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@ -397,8 +397,12 @@ fn light_new(block_number: u64) -> Light {
for i in 0..num_nodes {
let idx = *nodes.get_unchecked_mut(i).as_words().get_unchecked(0) as usize % num_nodes;
let mut data = nodes.get_unchecked((num_nodes - 1 + i) % num_nodes).clone();
for w in 0..NODE_WORDS {
*data.as_words_mut().get_unchecked_mut(w) ^= *nodes.get_unchecked(idx).as_words().get_unchecked(w);
debug_assert_eq!(NODE_WORDS, 16);
unroll! {
for w in 0..16 {
*data.as_words_mut().get_unchecked_mut(w) ^= *nodes.get_unchecked(idx).as_words().get_unchecked(w);
}
}
sha3_512(&data.bytes, &mut nodes.get_unchecked_mut(i).bytes);
}