From 149fe5ef04fc5f3036085233cd1f65b83e49b2e2 Mon Sep 17 00:00:00 2001
From: David Blaikie <dblaikie@gmail.com>
Date: Wed, 12 Aug 2015 23:26:12 +0000
Subject: [PATCH 1/1] Simplify PackedVector by removing user-defined special
 members that aren't any different than the defaults

This causes the other special members (like move and copy construction,
and move assignment) to come through for free. Some code in clang was
depending on the (deprecated, in the original code) copy ctor. Now that
there's no user-defined special members, they're all available without
any deprecation concerns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244835 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/ADT/PackedVector.h    | 11 +----------
 unittests/ADT/PackedVectorTest.cpp | 12 ------------
 2 files changed, 1 insertion(+), 22 deletions(-)

diff --git a/include/llvm/ADT/PackedVector.h b/include/llvm/ADT/PackedVector.h
index 2341e89fa11..09267173fd7 100644
--- a/include/llvm/ADT/PackedVector.h
+++ b/include/llvm/ADT/PackedVector.h
@@ -96,7 +96,7 @@ public:
     }
   };
 
-  PackedVector() { }
+  PackedVector() = default;
   explicit PackedVector(unsigned size) : Bits(size << (BitNum-1)) { }
 
   bool empty() const { return Bits.empty(); }
@@ -135,19 +135,10 @@ public:
     return Bits != RHS.Bits;
   }
 
-  const PackedVector &operator=(const PackedVector &RHS) {
-    Bits = RHS.Bits;
-    return *this;
-  }
-
   PackedVector &operator|=(const PackedVector &RHS) {
     Bits |= RHS.Bits;
     return *this;
   }
-
-  void swap(PackedVector &RHS) {
-    Bits.swap(RHS.Bits);
-  }
 };
 
 // Leave BitNum=0 undefined.
diff --git a/unittests/ADT/PackedVectorTest.cpp b/unittests/ADT/PackedVectorTest.cpp
index 55b5d8d049d..199a6704309 100644
--- a/unittests/ADT/PackedVectorTest.cpp
+++ b/unittests/ADT/PackedVectorTest.cpp
@@ -52,18 +52,6 @@ TEST(PackedVectorTest, Operation) {
   EXPECT_FALSE(Vec == Vec2);
   EXPECT_TRUE(Vec != Vec2);
 
-  Vec2.swap(Vec);
-  EXPECT_EQ(3U, Vec.size());
-  EXPECT_FALSE(Vec.empty());
-  EXPECT_EQ(0U, Vec[0]);
-  EXPECT_EQ(0U, Vec[1]);
-  EXPECT_EQ(0U, Vec[2]);
-
-  EXPECT_EQ(2U, Vec2[0]);
-  EXPECT_EQ(0U, Vec2[1]);
-  EXPECT_EQ(1U, Vec2[2]);
-  EXPECT_EQ(3U, Vec2[3]);
-
   Vec = Vec2;
   EXPECT_TRUE(Vec == Vec2);
   EXPECT_FALSE(Vec != Vec2);
-- 
2.34.1