Implement BackendTypes for FunctionCx

src/common.rs

@@ -1,5 +1,6 @@
 use std::fmt;
 
+use rustc_codegen_ssa::traits::BackendTypes;
 use rustc_target::spec::{HasTargetSpec, Target};
 
 use cranelift_module::Module;
@@ -667,6 +668,15 @@ fn target_spec(&self) -> &Target {
     }
 }
 
+impl<'a, 'tcx, B: Backend> BackendTypes for FunctionCx<'a, 'tcx, B> {
+    type Value = Value;
+    type BasicBlock = Ebb;
+    type Type = Type;
+    type Context = !;
+    type Funclet = !;
+    type DIScope = !;
+}
+
 impl<'a, 'tcx: 'a, B: Backend + 'a> FunctionCx<'a, 'tcx, B> {
     pub fn monomorphize<T>(&self, value: &T) -> T
     where

src/lib.rs

@@ -76,7 +76,6 @@ mod prelude {
         self, subst::Substs, FnSig, Instance, InstanceDef, ParamEnv, PolyFnSig, Ty, TyCtxt,
         TypeAndMut, TypeFoldable,
     };
-    pub use rustc_codegen_ssa::{CodegenResults, CompiledModule, ModuleKind};
     pub use rustc_data_structures::{
         fx::{FxHashMap, FxHashSet},
         indexed_vec::Idx,
@@ -84,6 +83,9 @@ mod prelude {
     };
     pub use rustc_mir::monomorphize::{collector, MonoItem};
 
+    pub use rustc_codegen_ssa::{CodegenResults, CompiledModule, ModuleKind};
+    pub use rustc_codegen_ssa::mir::operand::{OperandRef, OperandValue};
+
     pub use cranelift::codegen::ir::{
         condcodes::IntCC, function::Function, ExternalName, FuncRef, Inst, StackSlot,
     };