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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better rustc_codegen_cranelift alternative or higher similarity.
rustc_codegen_cranelift discussion
rustc_codegen_cranelift reviews and mentions
Posts with mentions or reviews of rustc_codegen_cranelift. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2025-06-26.
- "Why is the Rust compiler so slow?"
- Why doesn't Rust care more about compiler performance?
> I wonder if how much value there is in skipping LLVM in favor of having a JIT optimized linked in instead. For release builds it would get you a reasonable proxy if it optimized decently while still retaining better debugability.
Rust is in the process of building out the cranelift backend. Cranelift was originally built to be a JIT compiler. The hope is that this can become the debug build compiler.
https://github.com/rust-lang/rustc_codegen_cranelift
- I Hope Rust Does Not Oxidize Everything
There's no reason? Are you sure about this?
I think you mean there could theoretically be an interpreted Rust, but I don't think anyone has ever made a prototype of a Rust interpreter.
The closest is probably rust-analyzer (the official language server), that maintains internal state and reacts to changes you make, but it doesn't create an executable artifact.
The other is probably the Cranelift Backend (https://github.com/rust-lang/rustc_codegen_cranelift), which can produce debug builds quickly.
- Cranelift code generation comes to Rust
Windows is supported. See https://github.com/rust-lang/rustc_codegen_cranelift/issues/....
- What part of Rust compilation is the bottleneck?
- A Guide to Undefined Behavior in C and C++
> When this happens, it seems like it'll be possible to get the LLVM bits out of the bootstrap process and lead to a fully self-hosted Rust.
What do you mean by "when this happens"? GP's point is that this has already happened: the Cranelift backend is feature-complete from the perspective of the language [0], except for inline assembly and unwinding on panic. It was merged into the upstream compiler in 2020 [1], and a compiler built with only the Cranelift backend is perfectly capable of building another compiler. LLVM hasn't been a necessary component of the Rust compiler for quite some time.
[0] https://github.com/bjorn3/rustc_codegen_cranelift
[1] https://github.com/rust-lang/rust/pull/77975
- What are some stuff that Rust isn't good at?
Note that the Cranelift codegen will eventually become standard for debug builds to speed them up.
- Rust port of B3 from WebKit, LLVM-like backend
Maybe one day we'll have rustc b3 backend like what they did with Cranelift
- Any alternate Rust compilers?
Additionally, there is gcc codegen for rustc (https://github.com/rust-lang/rustc_codegen_gcc), which is not a compiler per se, but an alternative code generator, with more architectures supported and other nice things. It's also coming along, but there's still a lot of work to do there too. There's also Cranelift codegen (https://github.com/bjorn3/rustc_codegen_cranelift), which is designed to make debug builds faster, but this is not as exciting/useful as the other 2.
- Capsules, reactive state, and HSR: Perseus v0.4.0 goes stable!
For the instant reloading, that's in Sycamore, so you should speak to its devs, but as for the alternative compiler backend, it's not my project, but it uses Cranelift and works pretty well! See https://github.com/bjorn3/rustc_codegen_cranelift for details.
- A note from our sponsor - InfluxDB www.influxdata.com | 23 Dec 2025
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rust-lang/rustc_codegen_cranelift is an open source project licensed under Apache License 2.0 which is an OSI approved license.
The primary programming language of rustc_codegen_cranelift is Rust.
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