From 1394b1ccc8cfee2846b1a38d409717e821113cf3 Mon Sep 17 00:00:00 2001
From: Nekotekina <nekotekina@gmail.com>
Date: Mon, 10 Feb 2020 14:45:40 +0300
Subject: [PATCH] DenseMap: add workaround for C++2a builds

Hide operator !=
---
 include/llvm/ADT/DenseMap.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/llvm/ADT/DenseMap.h b/include/llvm/ADT/DenseMap.h
index 948a6e6bfb3..50c0bf1c3d5 100644
--- a/include/llvm/ADT/DenseMap.h
+++ b/include/llvm/ADT/DenseMap.h
@@ -1219,6 +1219,8 @@ public:
            "comparing incomparable iterators!");
     return Ptr == RHS.Ptr;
   }
+#if __cpp_impl_three_way_comparison >= 201711
+#else
   bool operator!=(const ConstIterator &RHS) const {
     assert((!Ptr || isHandleInSync()) && "handle not in sync!");
     assert((!RHS.Ptr || RHS.isHandleInSync()) && "handle not in sync!");
@@ -1226,6 +1228,7 @@ public:
            "comparing incomparable iterators!");
     return Ptr != RHS.Ptr;
   }
+#endif
 
   inline DenseMapIterator& operator++() {  // Preincrement
     assert(isHandleInSync() && "invalid iterator access!");