From 52c486475774b7416e691323322ef1ea2db790de Mon Sep 17 00:00:00 2001
From: Michael Wright <mikerite@lavabit.com>
Date: Thu, 11 Jun 2020 20:25:14 +0200
Subject: [PATCH] Improve end of expression check in for loop lints

The code should to check that the current expression _is_ the end
expression; not that it's equal to it. The equality check seems very
wasteful in terms of performance.
---
 clippy_lints/src/loops.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clippy_lints/src/loops.rs b/clippy_lints/src/loops.rs
index ae1aa66be5cd..3874b040b132 100644
--- a/clippy_lints/src/loops.rs
+++ b/clippy_lints/src/loops.rs
@@ -2042,7 +2042,7 @@ impl<'a, 'tcx> Visitor<'tcx> for InitializeVisitor<'a, 'tcx> {
         if self.state == VarState::DontWarn {
             return;
         }
-        if SpanlessEq::new(self.cx).eq_expr(&expr, self.end_expr) {
+        if expr.hir_id == self.end_expr.hir_id {
             self.past_loop = true;
             return;
         }