[ADT] Fix OwningArrayRef's move ctor

llvm-svn: 358332

Author: MaskRay

llvm/include/llvm/ADT/ArrayRef.h

@@ -430,7 +430,7 @@ namespace llvm {
       std::copy(Data.begin(), Data.end(), this->begin());
     }
 
-    OwningArrayRef(OwningArrayRef &&Other) { *this = Other; }
+    OwningArrayRef(OwningArrayRef &&Other) { *this = std::move(Other); }
 
     OwningArrayRef &operator=(OwningArrayRef &&Other) {
       delete[] this->data();

llvm/unittests/ADT/ArrayRefTest.cpp

@@ -248,6 +248,13 @@ TEST(ArrayRefTest, makeArrayRef) {
   EXPECT_TRUE(AR2.equals(AR2Ref));
 }
 
+TEST(ArrayRefTest, OwningArrayRef) {
+  static const int A1[] = {0, 1};
+  OwningArrayRef<int> A(makeArrayRef(A1));
+  OwningArrayRef<int> B(std::move(A));
+  EXPECT_EQ(A.data(), nullptr);
+}
+
 static_assert(is_trivially_copyable<ArrayRef<int>>::value,
               "trivially copyable");