Even though the implementation of emit and emit_safepoint may be platform-specific, the interface ought to be common so that other code in prelude.isle may safely call these constructors. This patch moves the definition of emit (from all platforms) and emit_safepoint (s390x only) to prelude.isle. This required adding an emit_safepoint implementation to aarch64 and x64 as well - the latter is still a stub as special move mitosis handling will be required.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.