mirror of
https://github.com/pezkuwichain/revive.git
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xermicus
39 lines
2.0 KiB
Markdown
39 lines
2.0 KiB
Markdown
# revive
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YUL and EVM bytecode recompiler to LLVM, targetting RISC-V on PolkaVM.
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Code bases of [frontend](https://github.com/matter-labs/era-compiler-solidity) and [code generator](https://github.com/matter-labs/era-compiler-llvm-context) are forked and adapted from ZKSync `zksolc`.
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# Status
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Currently, primary goal of this codebase is to allow for benchmarks comparing performance against ink! and solang artifacts as well as EVM interpreters.
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# TODO
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The project is in a very early PoC phase. Don't yet expect the produced code to be working nor to be correct for anything more than a basic flipper contract at the current stage.
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- [ ] Efficient implementations of byte swaps, memset, memmove, mulmod and the like
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- [ ] Use `drink` for integration tests once we have 64bit support in PolkaVM
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- [x] Use PolkaVM allocator for heap space
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- [ ] Exercice `schlau` and possibly `smart-bench` benchmark cases
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- [ ] Tests currently rely on the binary being in $PATH, which is very annoying and requires `cargo install` all the times
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- [ ] Define how to do deployments
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- [ ] Calling conventions for calling other contracts
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- [ ] Runtime environment isn't fully figured out; implement all EVM builtins
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- [ ] Iron out many leftovers from the ZKVM target
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- [ ] Use of exceptions
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- [ ] Change long calls (contract calls)
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- [ ] Check all alignments, attributes etc. if they still make sense with our target
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- [x] Custom extensions related to zk VM
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- [ ] `Active Pointer`: Redundant to calldata forwarding in pallet contracts. [Mainly used here](https://github.com/matter-labs/era-contracts/blob/4aa7006153ad571643342dff22c16eaf4a70fdc1/system-contracts/contracts/libraries/EfficientCall.sol) however we could offer a similar optimization.
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- []
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- [ ] Add a lot more test cases
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- [ ] Debug information
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- [ ] Look for and implement further optimizations
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- [ ] Differential testing against EVM
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- [x] Switch to LLVM 18 which has `RV{32,64}E` targets upstream
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- [ ] Minimize scope of "stdlib"
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- [ ] Document differences from EVM
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- [ ] Audit for bugs and correctness
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- [ ] Rebranding
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