1 files changed, 11 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs
index ce2f419c4..e30622cbd 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs
@@ -47,6 +47,8 @@ pub(super) enum UniqueTypeId<'tcx> {
     VariantPart(Ty<'tcx>, private::HiddenZst),
     /// The ID for the artificial struct type describing a single enum variant.
     VariantStructType(Ty<'tcx>, VariantIdx, private::HiddenZst),
+    /// The ID for the additional wrapper struct type describing an enum variant in CPP-like mode.
+    VariantStructTypeCppLikeWrapper(Ty<'tcx>, VariantIdx, private::HiddenZst),
     /// The ID of the artificial type we create for VTables.
     VTableTy(Ty<'tcx>, Option<PolyExistentialTraitRef<'tcx>>, private::HiddenZst),
 }
@@ -71,6 +73,15 @@ impl<'tcx> UniqueTypeId<'tcx> {
         UniqueTypeId::VariantStructType(enum_ty, variant_idx, private::HiddenZst)
     }
 
+    pub fn for_enum_variant_struct_type_wrapper(
+        tcx: TyCtxt<'tcx>,
+        enum_ty: Ty<'tcx>,
+        variant_idx: VariantIdx,
+    ) -> Self {
+        debug_assert_eq!(enum_ty, tcx.normalize_erasing_regions(ParamEnv::reveal_all(), enum_ty));
+        UniqueTypeId::VariantStructTypeCppLikeWrapper(enum_ty, variant_idx, private::HiddenZst)
+    }
+
     pub fn for_vtable_ty(
         tcx: TyCtxt<'tcx>,
         self_type: Ty<'tcx>,