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Optimize merkle #90
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Optimize merkle #90
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Codecov Report
@@ Coverage Diff @@
## stylus #90 +/- ##
==========================================
+ Coverage 54.78% 55.11% +0.32%
==========================================
Files 247 247
Lines 37558 37604 +46
==========================================
+ Hits 20576 20725 +149
+ Misses 14614 14506 -108
- Partials 2368 2373 +5 |
tsahee
commented
Jul 21, 2023
| empty_hash: Bytes32, | ||
| min_depth: usize, | ||
| ) -> Merkle { | ||
| pub fn get_empty(ty: MerkleType, layer: usize) -> Bytes32 { |
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note: moving from each markle storing it's own empty_layers vec to all sharing the same one didn't save any time on generating proofs. I still like it - but might be worth considering if added complexity is worth it.
tsahee
commented
Jul 24, 2023
tsahee
commented
Jul 27, 2023
| MerkleType::Empty => panic!("attempted to fetch empty-layer value from empty merkle"), | ||
| MerkleType::Memory => Memory::MEMORY_LAYERS, | ||
| MerkleType::Opcode => 2, | ||
| MerkleType::ArgumentData => 2, |
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Note: not sure if it's necessary. I gave opcode and argument data min_depth 2 to avoid short functions producing a "root" that's not hashed at all.
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split func to a mostly-empty additional-data merkle and condensed opcode merkle.
Optimize mostly-empty merkles.
Note: the last commit, caching and reusing empty hashes across merkles, doesn't seem to save time.
contract upgrade required: OffchainLabs/stylus-contracts#6