https://github.com/paradigmxyz/jitevm
convert evm bytecode to native machine code and go vroom - just an experiment, probably broken, reach out to [email protected] to contribute / productionize.
https://github.com/paradigmxyz/jitevm
Last synced: 2 months ago
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convert evm bytecode to native machine code and go vroom - just an experiment, probably broken, reach out to [email protected] to contribute / productionize.
- Host: GitHub
- URL: https://github.com/paradigmxyz/jitevm
- Owner: paradigmxyz
- Archived: true
- Created: 2023-07-27T17:33:19.000Z (over 1 year ago)
- Default Branch: master
- Last Pushed: 2024-06-20T02:35:51.000Z (10 months ago)
- Last Synced: 2024-06-20T14:51:53.208Z (10 months ago)
- Language: Rust
- Homepage:
- Size: 58.6 KB
- Stars: 139
- Watchers: 4
- Forks: 5
- Open Issues: 2
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Metadata Files:
- Readme: README.md
Awesome Lists containing this project
- awesome-ethereum-rust - jitevm
README
# JIT-EVM Experiments
_This repository has been superseded by https://github.com/paradigmxyz/revmc.
_
## Goal
Evaluate performance gains to expect when EVM were to compile hot contracts into machine code (rather than interpreting the EVM bytecode)
## Todos
* Support all instructions
* Performance evaluation
* Error handling
* Gas accounting
## Experiment (MacOS, see Ubuntu below)
Setup:
* LLVM 14 installed with `brew` in `/opt/homebrew/opt/llvm`
Run:
```
LLVM_SYS_140_PREFIX=/opt/homebrew/opt/llvm cargo run
```
What it does:
* Fibonacci sequence calculator hand-implemented in EVM bytecode
* Runs it in EVM interpreter
* Compiles it to machine code and executes it
* You compare that the outputs correspond to the 15th Fibonacci number (which is 377)
How to interpret the output:
* Modulo indexing convention, 15th Fibonacci number is 377 (says Google)
* Last line of demo output (this is from JIT VM): return value is 377
* Scrolling up past the LLVM IR: last state of interpreter has 377 in the 0th stack entry
## Tests (MacOS, see Ubuntu below)
```
RUST_BACKTRACE=1 LLVM_SYS_140_PREFIX=/opt/homebrew/opt/llvm RUST_MIN_STACK=8388608 cargo test -- --nocapture
```
## Ubuntu
Install:
```
sudo apt-get install llvm-14 llvm-14-dev libllvm14
```
Adjust paths above accordingly (leaving `LLVM_SYS_140_PREFIX=/opt/homebrew/opt/llvm` away entirely "works for me").
## References
* https://github.com/TheDan64/inkwell
* https://www.mattkeeter.com/projects/elfjit/
* https://github.com/mkeeter/advent-of-code/blob/master/2018/day21-jit/src/main.rs
* https://github.com/bluealloy/revm
* https://github.com/ethereum/evmone/pull/320
* https://github.com/axic/snailtracer
* https://doc.rust-lang.org/reference/type-layout.html