Multi-Architecture Code Emission Library (macel) is a library which implements a low-level intermediate representation meant to expose on machine-level details such as registers, intended for use as a compiler backend.
Macel functions are represented with a Proc which represents a CFG of basic
blocks. Each block comprises of a sequence of Insts.
Macel is intended as superset of the supported architectures: Instructions from all possible target CPUs are representable. Users of this library are able to query whether each instruction form is valid for a given backend and pick the appropriate form. If such control is not required and performance is not a concern, renormalization can be done so that the instruction is appropriately emulated on the target.