X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=compiler%2Frustc_borrowck%2Fsrc%2Ftype_check%2Fcanonical.rs;h=2b81a35052d7b6055eb277fe9c2706abfddbaa9a;hb=dc3e59cb3fe05ebd752d3a2269f501c00327be22;hp=02222c0a03cb350f9dcfdebc2b963db3f1edfcd5;hpb=3f21b812bec836dc3bc0f56d4e34b7c46ec68af1;p=rust.git

diff --git a/compiler/rustc_borrowck/src/type_check/canonical.rs b/compiler/rustc_borrowck/src/type_check/canonical.rs
index 02222c0a03c..2b81a35052d 100644
--- a/compiler/rustc_borrowck/src/type_check/canonical.rs
+++ b/compiler/rustc_borrowck/src/type_check/canonical.rs
@@ -107,11 +107,7 @@ pub(super) fn normalize_and_prove_instantiated_predicates(
         instantiated_predicates: ty::InstantiatedPredicates<'tcx>,
         locations: Locations,
     ) {
-        for (predicate, span) in instantiated_predicates
-            .predicates
-            .into_iter()
-            .zip(instantiated_predicates.spans.into_iter())
-        {
+        for (predicate, span) in instantiated_predicates {
             debug!(?predicate);
             let category = ConstraintCategory::Predicate(span);
             let predicate = self.normalize_with_category(predicate, locations, category);
@@ -185,9 +181,6 @@ pub(super) fn ascribe_user_type(
         user_ty: ty::UserType<'tcx>,
         span: Span,
     ) {
-        // FIXME: Ideally MIR types are normalized, but this is not always true.
-        let mir_ty = self.normalize(mir_ty, Locations::All(span));
-
         self.fully_perform_op(
             Locations::All(span),
             ConstraintCategory::Boring,
@@ -221,7 +214,9 @@ pub(super) fn ascribe_user_type_skip_wf(
             return;
         }
 
+        // FIXME: Ideally MIR types are normalized, but this is not always true.
         let mir_ty = self.normalize(mir_ty, Locations::All(span));
+
         let cause = ObligationCause::dummy_with_span(span);
         let param_env = self.param_env;
         let op = |infcx: &'_ _| {