implement FuncTranslator::visit_return

Author: Robbepop

crates/wasmi/src/engine/translator/func2/visit.rs

@@ -7,6 +7,7 @@ use crate::{
     },
     ir::Instruction,
     Error,
+    FuncType,
 };
 use wasmparser::VisitOperator;
 
@@ -208,7 +209,15 @@ impl<'a> VisitOperator<'a> for FuncTranslator {
     }
 
     fn visit_return(&mut self) -> Self::Output {
-        todo!()
+        bail_unreachable!(self);
+        let consume_fuel_instr = self.stack.consume_fuel_instr();
+        self.translate_return(consume_fuel_instr)?;
+        let len_results = self.func_type_with(FuncType::len_results);
+        for _ in 0..len_results {
+            self.stack.pop();
+        }
+        self.reachable = false;
+        Ok(())
     }
 
     fn visit_call(&mut self, _function_index: u32) -> Self::Output {