rhizome
Cwerg
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| rhizome | Cwerg | |
|---|---|---|
| 8 | 59 | |
| 814 | 395 | |
| - | - | |
| 1.8 | 9.7 | |
| almost 3 years ago | 5 days ago | |
| Ruby | Python | |
| MIT License | Apache License 2.0 |
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rhizome
- How do optimizing compilers convert variables into registers
- YJIT: Building a New JIT Compiler for CRuby
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Tenderjit – A JIT for Ruby Written in Ruby
There was actually an existing, similar in concept, Ruby JIT, Rhyzome: https://github.com/chrisseaton/rhizome.
It's good to see (IMO) the development of a JIT in a strict sense. I'm personally skeptical about the current approach (invoking a compiler separately).
On the other hand, it's important to know that JITs may take a long development time to be performant, and that they also complicate the performance profile of a virtual machine.
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Let's write a compiler, part 5: A code generator
Lots of compiler tutorials are like this - there's very little out there to explain how compilers really work.
This is my effort - trying to show genuine data structures and processes.
- Thoughts about Intermediate representations
- A JIT for Ruby, implemented in pure Ruby (/r/ruby)
- Rhizome – a JIT for Ruby, implemented in pure Ruby
Cwerg
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Cwerg: C-like language that can be implemented in 10kLOC
Perhaps these have already been dealt with and I'm missing critical information. If so, my apologies. Great work, in any case.
[1] https://github.com/robertmuth/Cwerg/tree/master/FrontEnd#dis...
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Where can I find resources and guides on how to build compiler backends?
Cwerg has backend that can be used as JIT and is written with readability in mind. Additional documentation can be found here: https://github.com/robertmuth/Cwerg/tree/master/Docs
- Most important language features not touched in the book "Crafting Interpreters"?
- Lack of resources in creating Assemblers from scratch.
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Minimum ISA Capabilities to Support Most (Non-Interactive) Programs?
I defined a basic ISA-like IR for Cwerg. It has unlimited registers and no constraints on immediates.
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How do you design a compiler and a language?
entire compiler front end ast nodes
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Syntax Design
I was also going down the path of bike shedding concrete syntax for my language Cwerg before pulling the plug on that effort and just using s-exprs. I managed to make the s-expr quite succinct by carefully choosing the order of arguments so I can omit optional ones. Also very helpful was to use square brackets for list, e.g. (call fun-name [arg1 arg2]). This simplifies parsing a little bit and is easier on the eye. Here are some Code Examples
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November 2022 monthly "What are you working on?" thread
I am iterating over the languages features for Cwerg's Frontend which aims to be a low level language with about the complexity of C but with some of the comforts of modern languages. I am especially happy with the choice of adding sum types. Relative to C the current feature set looks like this: Removed: * arrays decay to pointers * bitfields * separate compilation (more of a backend issue) * pre-processor * varargs * implcit type conversions * (untagged) unions * ++/-- * comma operator * implicitly nullable pointers * goto
- typed asts and codegen
- Features Compendium
What are some alternatives?
yjit - Optimizing JIT compiler built inside CRuby
mir - A lightweight JIT compiler based on MIR (Medium Internal Representation) and C11 JIT compiler and interpreter based on MIR
zetasql - ZetaSQL - Analyzer Framework for SQL
tinycc - Unofficial mirror of mob development branch
sqlite-parser - JavaScript implentation of SQLite 3 query parser
asmjit - Low-latency machine code generation
grammars-v4 - Grammars written for ANTLR v4; expectation that the grammars are free of actions.
bluebird - A work-in-progess programming language modeled after Ada and C++
langjam
asmdb - Instructions database and utilities for X86/X64 and ARM (THUMB/A32/A64) architectures.
swifties - a custom language construction kit
konna - A fast functional language based on two level type theory