When trying to read generated CLIF, it's nice to be able to see at a glance that some of the operands are defined by `iconst` and similar instructions, without having to go find each operand's definition manually.
This crate provides a straightforward way to create a
Cranelift IR function and fill it with
instructions translated from another language. It contains an SSA construction
module that provides convenient methods for translating non-SSA variables into
SSA Cranelift IR values via use_var and def_var calls.