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This PR adds [CO2](https://github.com/hkalbasi/co2) which is a language backward compatible with C, with some Rust interop features that compiles to Rust's MIR. I added two compiler `co2rustc` and `co2cc`, and a tool `co2miri` which is Miri for CO2. I added `co2cc` under C compilers, to make it possible to view diff of assembly for a C code compiled with CO2 and clang or gcc. `co2cc` is a CO2 frontend which accepts gcc-like flags, and can (or at least should) compile almost every ISO compatible C23 code. `co2rustc` accepts Rust like flags, and added under a new `CO2` language. Tested locally and it seems to work. I need some help in setting up artifacts (which, if I understand correctly, needs to happen in `infra` or `compiler-workflows`). I make an artifact `co2-multicall` in my CI, which needs to get symlinked in `co2cc`, `co2rustc` and `co2miri`, and it needs to run a simple project with miri to create the miri sysroot. If you show me a similar project, I will do the job. Disclaimer: Written partially by LLM. --------- Co-authored-by: Matt Godbolt <matt@godbolt.org>
21 lines
682 B
Plaintext
21 lines
682 B
Plaintext
// Type your code here, or load an example.
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#include <stdio.h>
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// Similar to Rust, small functions are automatically
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// marked as `#[inline]` so they will not show up in
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// the output when compiling with optimisations. Use
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// `#[no_mangle]` or `#[inline(never)]` to
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// work around this issue. C style functions are
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// automatically `#[no_mangle]` and do not need attribute.
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// See https://github.com/compiler-explorer/compiler-explorer/issues/5939
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#[no_mangle]
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pub fn square(num: i32) -> i32 {
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i32 result = num * num;
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printf("square of %d is %d", num, result);
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return result;
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}
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// If you use `main()`, declare it as `pub` to see it in the output:
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// pub fn main() {}
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