There's an ongoing discussion on the rustc forum (<https://users.rust-lang.org/t/call-for-help-implementing-an-independent-rust-frontend-for-gcc/32163>) on implementing a GCC front-end for the Rust compiler, and the issue of whether GIMPLE is stable was brought up. Namely, if a compiler front-end were to output GIMPLE directly, how often (if at all) would its codebase have to be changed to due to breaking changes from GCC?
I did find this reply <https://gcc.gnu.org/ml/gcc/2011-05/msg00313.html> which says: >> ?^ It looks like GIMPLE is expected to change per version of gcc. Is there a >> time in >> the future when GIMPLE will be pretty stable? > > "Pretty stable" won't be enough, and I don't see us arriving there at > the moment. But this is fairly old (2011) so it seemed reasonable to ask if this is still the case.
