From b59ded8ae06cff30643113ea9b6952b05a25f8d9 Mon Sep 17 00:00:00 2001
From: Santiago Pastorino <spastorino@gmail.com>
Date: Fri, 19 Jul 2019 22:49:58 +0200
Subject: [PATCH] Avoid cloning Place in visit_rvalue

---
 src/librustc_mir/transform/qualify_consts.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/librustc_mir/transform/qualify_consts.rs b/src/librustc_mir/transform/qualify_consts.rs
index a05ac89921de9..739e2172b03bc 100644
--- a/src/librustc_mir/transform/qualify_consts.rs
+++ b/src/librustc_mir/transform/qualify_consts.rs
@@ -1199,10 +1199,10 @@ impl<'a, 'tcx> Visitor<'tcx> for Checker<'a, 'tcx> {
                         MutatingUseContext::Borrow,
                     ),
                 };
-                self.visit_place(&Place {
-                    base: place.base.clone(),
-                    projection: proj.clone(),
-                }, ctx, location);
+                self.visit_place_base(&place.base, ctx, location);
+                if let Some(proj) = proj {
+                    self.visit_projection(&place.base, proj, ctx, location);
+                }
             } else {
                 self.super_rvalue(rvalue, location);
             }