librustc{, codegen_ssa,infer,mir_build}: don't clone types that are copy

3 files changed, 3 insertions, 3 deletions

diff --git a/src/librustc/ty/context.rs b/src/librustc/ty/context.rs
index e59738d8886..c027d6f61b0 100644
--- a/src/librustc/ty/context.rs
+++ b/src/librustc/ty/context.rs
@@ -1526,7 +1526,7 @@ impl<'tcx> GlobalCtxt<'tcx> {
         ty::tls::with_related_context(tcx, |icx| {
             let new_icx = ty::tls::ImplicitCtxt {
                 tcx,
-                query: icx.query.clone(),
+                query: icx.query,
                 diagnostics: icx.diagnostics,
                 layout_depth: icx.layout_depth,
                 task_deps: icx.task_deps,
diff --git a/src/librustc/ty/mod.rs b/src/librustc/ty/mod.rs
index a195c944ff2..d17ef3a6c9a 100644
--- a/src/librustc/ty/mod.rs
+++ b/src/librustc/ty/mod.rs
@@ -1447,7 +1447,7 @@ impl<'tcx> ToPredicate<'tcx> for ConstnessAnd<TraitRef<'tcx>> {
 impl<'tcx> ToPredicate<'tcx> for ConstnessAnd<&TraitRef<'tcx>> {
     fn to_predicate(&self) -> Predicate<'tcx> {
         ty::Predicate::Trait(
-            ty::Binder::dummy(ty::TraitPredicate { trait_ref: self.value.clone() }),
+            ty::Binder::dummy(ty::TraitPredicate { trait_ref: *self.value }),
             self.constness,
         )
     }
diff --git a/src/librustc/ty/query/job.rs b/src/librustc/ty/query/job.rs
index 8aae57e72cd..3394fed8402 100644
--- a/src/librustc/ty/query/job.rs
+++ b/src/librustc/ty/query/job.rs
@@ -173,7 +173,7 @@ impl<'tcx> QueryLatch<'tcx> {
                 return CycleError { usage, cycle };
             }
 
-            current_job = info.job.parent.clone();
+            current_job = info.job.parent;
         }
 
         panic!("did not find a cycle")