llvm-project
mrustc
llvm-project | mrustc | |
---|---|---|
4 | 75 | |
101 | 2,090 | |
- | - | |
0.0 | 8.8 | |
about 2 months ago | 4 days ago | |
C++ | ||
- | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
llvm-project
-
“33% of GStreamer commits are now in Rust”, from the 1.22 release notes
There's an LLVM fork with Z80 and eZ80 support if you want to start work on that yourself.
-
Motorola 6800
Very cool. While obviously not ideal, the results are probably accurate within a small factor. Unfortunately there's no assembly version for 65C02 but Z80 does surprisingly well in this test.
I muse what could be done with modern cross-compiler (SAT solving for optional code sequences?) A llvm backend for Z80 has recently kicked back into gear: https://github.com/jacobly0/llvm-project
- What can C do that C++ can't?
-
First ever Rust code compiled for 8-bit 6502!
I also found this Z80 port of LLVM here: https://github.com/jacobly0/llvm-project It seems to be somewhat active and there's also an issue about Rust: https://github.com/jacobly0/llvm-project/issues/15
mrustc
-
Why do lifetimes need to be leaky?
No, you don't. Existential proof: mrustc ignores lifetimes. Just flat out simply ignores. It changes some corner-cases related to HRBT, yet rustc compiled by mrustc works (that's BTW mrustc exist: to bootsrap the rustc compiler).
-
I think C++ is still a desirable coding platform compared to Rust
Incidentally C++ is the only way to bootstrap rust without rust today.
https://github.com/thepowersgang/mrustc
-
Rust – Faster compilation with the parallel front-end in nightly
Well, there is mrustc[0], a Rust compiler that doesn't include a borrow-checker, so it's possible to compile (at least some versions of) Rust without a borrow checker, though it might not result in the most optimized code.
AFAIK there are some optimization like the infamous `noalias` optimization (which took several tries to get turned on[1]) that uses information established during borrow checking.
I'm also not sure what the relation with NLL (non-lexical lifetimes) is, where I would assume you would need at least a primitive borrow-checker to establish some information that the backend might be interested in. Then again, mrustc compiles Rust versions that have NLL features without a borrow-checker, so it's again probably more on the optimization side than being essential.
[0]: https://github.com/thepowersgang/mrustc
[1]: https://stackoverflow.com/a/57259339
- Running the "Reflections on Trusting Trust" Compiler
-
Forty years of GNU and the free software movement
> Maybe another memory safe language, but Rust has severe bootstrapping issues which is a hard sell for distros that care about source to binary transparency.
It is possible to bootstrap rustc from just GCC relatively easily, although it's a little bit time consuming.
You can use mrustc to bootstrap Rust 1.54: https://github.com/thepowersgang/mrustc
And from then you can go through each version all the way to the current 1.72. (Each new Rust version officially needs the previous one to compile.)
-
Building rustc on sparcv9 Solaris
Have you tried this route : https://github.com/thepowersgang/mrustc ?
-
GCC 13 and the state of gccrs
Mrustc supports Rust 1.54.0 today
- Any alternate Rust compilers?
-
Stop Comparing Rust to Old C++
There are three. The official one, mrustc (no borrow checker, but can essentially compile the official rustc) and GCC (can't really compile anything substantial yet). Only rustc is production-ready though.
-
Can I make it so that only the newest version of Rust gets installed?
That probably depends on what you mean by problematic. Having an ever increasing chain of dependencies isn’t the most desirable situation so there has been some work to trim the bootstrap chain. In 2018, when the blogpost I linked above was written, mrustc was used to bootstrap rust 1.19.0; now mrustc can bootstrap rust 1.54.0 so the chain to recent versions is much shorter than if all those intervening versions back through 1.19.0 needed to be built. https://github.com/thepowersgang/mrustc
What are some alternatives?
llvm-6502 - LLVM backend for 6502
gccrs - GCC Front-End for Rust
exorsim - Motorola M6800 (6800) Exorciser / SWTPC emulator
gccrs - GCC Front-End for Rust
rust - Empowering everyone to build reliable and efficient software.
llvm-cbe - resurrected LLVM "C Backend", with improvements
rust-ttapi
miri - An interpreter for Rust's mid-level intermediate representation
gcc-rust - a (WIP) Rust frontend for gcc / a gcc backend for rustc
winlamb - A lightweight modern C++11 library for Win32 API, using lambdas to handle Windows messages.
reference - The Rust Reference
rustc_codegen_cranelift - Cranelift based backend for rustc