[u2zv1wx]

What you need are the two functions `malloc` and `free` that have the following signatures:

  declare i8* @malloc(i64)

  declare void @free(i8*)

So if you have implementations of them written in LLVM IR, I think that's enough.

Disclaimer: I'm not very good at low-layer concepts. Correct me if I'm wrong here.

[aey]

Is there a big runtime that’s linked to support all the language features? Like what is the fully statically linked size of

int main(void) { return 0; }

If it’s just providing free/malloc symbols, that’s wonderful!