1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/rustc_mir_transform/src/uninhabited_enum_branching.rs b/compiler/rustc_mir_transform/src/uninhabited_enum_branching.rs
index be0aa0fc4..5389b9f52 100644
--- a/compiler/rustc_mir_transform/src/uninhabited_enum_branching.rs
+++ b/compiler/rustc_mir_transform/src/uninhabited_enum_branching.rs
@@ -109,7 +109,9 @@ impl<'tcx> MirPass<'tcx> for UninhabitedEnumBranching {
                 continue;
             };
 
-            let layout = tcx.layout_of(tcx.param_env(body.source.def_id()).and(discriminant_ty));
+            let layout = tcx.layout_of(
+                tcx.param_env_reveal_all_normalized(body.source.def_id()).and(discriminant_ty),
+            );
 
             let allowed_variants = if let Ok(layout) = layout {
                 variant_discriminants(&layout, discriminant_ty, tcx)