From 6af17e69ff5a69892aff4d82b293de2ec7f5050a Mon Sep 17 00:00:00 2001
From: Sean McArthur <sean.monstar@gmail.com>
Date: Thu, 26 May 2016 11:23:42 -0700
Subject: [PATCH] core: check pointer equality when comparing byte slices

---
 src/libcore/slice.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libcore/slice.rs b/src/libcore/slice.rs
index a0e978f783d73..299444e756a76 100644
--- a/src/libcore/slice.rs
+++ b/src/libcore/slice.rs
@@ -1831,6 +1831,9 @@ impl<A> SlicePartialEq<A> for [A]
         if self.len() != other.len() {
             return false;
         }
+        if self.as_ptr() == other.as_ptr() {
+            return true;
+        }
         unsafe {
             let size = mem::size_of_val(self);
             memcmp(self.as_ptr() as *const u8,