1 files changed, 13 insertions, 1 deletions
diff --git a/compiler/rustc_smir/src/rustc_internal/internal.rs b/compiler/rustc_smir/src/rustc_internal/internal.rs
index 6b73c1ebd1c..6ec710f97d1 100644
--- a/compiler/rustc_smir/src/rustc_internal/internal.rs
+++ b/compiler/rustc_smir/src/rustc_internal/internal.rs
@@ -10,7 +10,7 @@ use rustc_span::Symbol;
 use stable_mir::abi::Layout;
 use stable_mir::mir::alloc::AllocId;
 use stable_mir::mir::mono::{Instance, MonoItem, StaticDef};
-use stable_mir::mir::{BinOp, Mutability, Place, ProjectionElem, Safety};
+use stable_mir::mir::{BinOp, Mutability, Place, ProjectionElem, Safety, UnOp};
 use stable_mir::ty::{
     Abi, AdtDef, Binder, BoundRegionKind, BoundTyKind, BoundVariableKind, ClosureKind, Const,
     DynKind, ExistentialPredicate, ExistentialProjection, ExistentialTraitRef, FloatTy, FnSig,
@@ -582,6 +582,18 @@ impl RustcInternal for BinOp {
     }
 }
 
+impl RustcInternal for UnOp {
+    type T<'tcx> = rustc_middle::mir::UnOp;
+
+    fn internal<'tcx>(&self, _tables: &mut Tables<'_>, _tcx: TyCtxt<'tcx>) -> Self::T<'tcx> {
+        match self {
+            UnOp::Not => rustc_middle::mir::UnOp::Not,
+            UnOp::Neg => rustc_middle::mir::UnOp::Neg,
+            UnOp::PtrMetadata => rustc_middle::mir::UnOp::PtrMetadata,
+        }
+    }
+}
+
 impl<T> RustcInternal for &T
 where
     T: RustcInternal,