Very weirdly organized, but it JITs!

src/backend.rs

@@ -1,19 +1,21 @@
 mod into_crane;
 mod runtime;
 
-use self::runtime::{RuntimeFunctionError, RuntimeFunctions};
+use std::collections::HashMap;
+
+pub use self::runtime::{RuntimeFunctionError, RuntimeFunctions};
 use crate::ir;
 use codespan_reporting::diagnostic::Diagnostic;
 use cranelift_codegen::isa::LookupError;
 use cranelift_codegen::settings::{Configurable, SetError};
 use cranelift_codegen::{isa, settings, CodegenError};
-use cranelift_module::{default_libcall_names, ModuleCompiledFunction, ModuleError};
+use cranelift_module::{default_libcall_names, FuncId, ModuleError};
 use cranelift_object::{object, ObjectBuilder, ObjectModule};
 use target_lexicon::Triple;
 use thiserror::Error;
 
 pub struct Program {
-    _compiled: ModuleCompiledFunction,
+    _func_id: FuncId,
     module: ObjectModule,
 }
 
@@ -70,7 +72,13 @@ impl Program {
         let rtfuns = RuntimeFunctions::new(&platform, &mut object_module)?;
 
         Ok(Program {
-            _compiled: ir.into_cranelift(&mut object_module, &rtfuns)?,
+            _func_id: ir.into_cranelift::<BackendError, _>(
+                &mut object_module,
+                "gogogo",
+                &rtfuns,
+                &HashMap::new(),
+                &HashMap::new(),
+            )?,
             module: object_module,
         })
     }