Hello guys! Rust is an awesome piece of technology but sadly still running on a few architectures (I'm know there's efforts to add more back-ends to LLVM, but until goes to real hardware can be a long time), so I'm here to question you about invest some effort to create a GCC front-end. I'm stayin…

The way i see it there are 2 main options after reviewing some code today: Start the compiler front-end within GCC and have an alternate compiler from scratch. Same approach as gcc-go. Have some license clause to allow for the reuse of the rust standard library. This would be the best approach if…

[image] redbrain: Start the compiler front-end within GCC and have an alternate compiler from scratch. Same approach as gcc-go. Have some license clause to allow for the reuse of the rust standard library. This would be the best approach if the language is stable i found: https://github.com/rust…

I was pointed at this thread; I'm the author and maintainer of libgccjit. Although it has "jit" in the name, libgccjit can be thought of as a library for accessing gcc's backend, and so it can be used for ahead-of-time compilation (as well as the JIT use-case). See e.g.: Tutorial part 5: Implemen…

[image] redbrain: Have some license clause to allow for the reuse of the rust standard library. This would be the best approach if the language is stable [...] The tough thing here is that the standard library uses unstable language features itself. So an independent Rust front-end can't lim…

Apologies i wasn't sure if ahead of time compilation was possible. I was thinking some people love to try os development with rust and those are options used in that case i thought if we required to JIT doing that type of work wouldn't be possible. But I stand corrected this is looking to be the bes…

(I've been thinking about this topic "Rust support in GCC" for a few months, but have never been able to dedicate a big-enough amount of time to it...) As long as the Rust programming language is not properly specified, I suppose writing a new front end is too big of a task: that basically means ha…

[image] tschwinge: GCC front end for LLVM IR I guess that's sort of the reverse of DragonEgg . (but that project is basically abandoned)

I can additionally/alternatively see the following option: the current Rust front end certainly must be generating some intermediate language (pure LLVM IR, or some variant thereof?) It uses MIR . So yes, maybe making a gcc front-end that compiles mir may be a more feasible approach.

Thanks for the infos! =) What about the state of the MIR, it’s already integrate on mainline or some nightly build?

MIR is already integrated on mainline, and actually released as stable in Rust 1.12, September 2016. So that was nearly a year ago.

Rust Front-End to GCC

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pmatos October 24, 2017, 1:53pm 18

Which begs the question... is there a specification of MIR people can rely on to build a GCC frontend?

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Rust Front-End to GCC

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