Method finish

cranelift/codegen/src/machinst/buffer.rs:1627–1682

Finish any deferred emissions and/or fixups.

(
        mut self,
        constants: &VCodeConstants,
        ctrl_plane: &mut ControlPlane,
    )

    /// Finish any deferred emissions and/or fixups.
    pub fn finish(
        mut self,
        constants: &VCodeConstants,
        ctrl_plane: &mut ControlPlane,
    ) -> MachBufferFinalized<Stencil> {
        let _tt = timing::vcode_emit_finish();

        self.finish_emission_maybe_forcing_veneers(ForceVeneers::No, ctrl_plane);

        let alignment = self.finish_constants(constants);

        // Resolve all labels to their offsets.
        let finalized_relocs = self
            .relocs
            .iter()
            .map(|reloc| FinalizedMachReloc {
                offset: reloc.offset,
                kind: reloc.kind,
                addend: reloc.addend,
                target: match &reloc.target {
                    RelocTarget::ExternalName(name) => {
                        FinalizedRelocTarget::ExternalName(name.clone())
                    }
                    RelocTarget::Label(label) => {
                        FinalizedRelocTarget::Func(self.resolve_label_offset(*label))
                    }
                },
            })
            .collect();

        let finalized_exception_handlers = self
            .exception_handlers
            .iter()
            .map(|handler| handler.finalize(|label| self.resolve_label_offset(label)))
            .collect();

        let mut srclocs = self.srclocs;
        srclocs.sort_by_key(|entry| entry.start);

        MachBufferFinalized {
            data: self.data,
            relocs: finalized_relocs,
            traps: self.traps,
            call_sites: self.call_sites,
            patchable_call_sites: self.patchable_call_sites,
            exception_handlers: finalized_exception_handlers,
            srclocs,
            debug_tags: self.debug_tags,
            debug_tag_pool: self.debug_tag_pool,
            user_stack_maps: self.user_stack_maps,
            unwind_info: self.unwind_info,
            alignment,
            frame_layout: self.frame_layout,
            nop_units: I::gen_nop_units(),
        }
    }

    /// Add an external relocation at the given offset.