The main use for non-PIC code at present is JIT code, and JIT code can live anywhere in memory and reference other symbols defined anywhere in memory, so it needs to use the "large" code model. func_addr and globalsym_addr instructions were already using `movabs` to support arbitrary 64-bit addresses, so this just makes calls be legalized to support arbitrary 64-bit addresses also.
This crate contains the core Cretonne code generator. It translates code from an intermediate representation into executable machine code.