54acd8b3e2
If an address expression is given to `to_amode` that is completely constant (no registers at all), then it will produce an `Amode` that has the resulting constant as an offset, and `(invalid_reg)` as the base. This is a side-effect of the way we build up the amode step-by-step -- we're waiting to see a register and plug it into the base field. If we never get a reg though, we need to generate a constant zero into a register and use that as the base. This PR adds a `finalize_amode` helper to do just that. Fixes #4234.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.