ae5fe8a728
This PR removes all uses of modify-operands in the aarch64 backend, replacing them with reused-input operands instead. This has the nice effect of removing a bunch of move instructions and more clearly representing inputs and outputs. This PR also removes the explicit use of pinned vregs in the aarch64 backend, instead using fixed-register constraints on the operands when insts or pseudo-inst sequences require certain registers. This is the second PR in the regalloc-semantics cleanup series; after the remaining backend (s390x) and the ABI code are cleaned up as well, we'll be able to simplify the regalloc2 frontend.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.