From b2820859240b8b8ad03384207ce896da60702f98 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 16 Aug 2013 22:09:02 +0000
Subject: [PATCH] allow != to compare PointerUnion, we already support ==.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188582 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/ADT/PointerUnion.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/include/llvm/ADT/PointerUnion.h b/include/llvm/ADT/PointerUnion.h
index c1a6d744128..045cf2bd2ed 100644
--- a/include/llvm/ADT/PointerUnion.h
+++ b/include/llvm/ADT/PointerUnion.h
@@ -177,10 +177,17 @@ namespace llvm {
   };
 
   template<typename PT1, typename PT2>
-  bool operator==(PointerUnion<PT1, PT2> lhs, PointerUnion<PT1, PT2> rhs) {
+  static bool operator==(PointerUnion<PT1, PT2> lhs,
+                         PointerUnion<PT1, PT2> rhs) {
     return lhs.getOpaqueValue() == rhs.getOpaqueValue();
   }
-  
+
+  template<typename PT1, typename PT2>
+  static bool operator!=(PointerUnion<PT1, PT2> lhs,
+                         PointerUnion<PT1, PT2> rhs) {
+    return lhs.getOpaqueValue() == rhs.getOpaqueValue();
+  }
+
   // Teach SmallPtrSet that PointerUnion is "basically a pointer", that has
   // # low bits available = min(PT1bits,PT2bits)-1.
   template<typename PT1, typename PT2>
-- 
2.34.1