diff --git a/compiler/rustc_smir/src/rustc_smir/mod.rs b/compiler/rustc_smir/src/rustc_smir/mod.rs
index 6af43f5d3f358..3afb08f1279d9 100644
--- a/compiler/rustc_smir/src/rustc_smir/mod.rs
+++ b/compiler/rustc_smir/src/rustc_smir/mod.rs
@@ -330,10 +330,7 @@ fn rustc_terminator_to_terminator(
             target: target.as_usize(),
             unwind: rustc_unwind_to_unwind(unwind),
         },
-        Yield { .. } => todo!(),
-        GeneratorDrop => Terminator::GeneratorDrop,
-        FalseEdge { .. } => todo!(),
-        FalseUnwind { .. } => todo!(),
         InlineAsm { .. } => todo!(),
+        Yield { .. } | GeneratorDrop | FalseEdge { .. } | FalseUnwind { .. } => unreachable!(),
     }
 }