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-rw-r--r--compiler/rustc_middle/src/ty/consts.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_middle/src/ty/consts.rs b/compiler/rustc_middle/src/ty/consts.rs
index 73d0acf95f4..ebc6cac3c42 100644
--- a/compiler/rustc_middle/src/ty/consts.rs
+++ b/compiler/rustc_middle/src/ty/consts.rs
@@ -109,6 +109,7 @@ impl<'tcx> Const<'tcx> {
 
     #[inline]
     pub fn new_unevaluated(tcx: TyCtxt<'tcx>, uv: ty::UnevaluatedConst<'tcx>) -> Const<'tcx> {
+        tcx.debug_assert_args_compatible(uv.def, uv.args);
         Const::new(tcx, ty::ConstKind::Unevaluated(uv))
     }