Try to fix windows fail at r261902.

Introduce move constructor and move assignment operator to PostDominatorTree.

llvm-svn: 261910

1 files changed, 10 insertions, 0 deletions

diff --git a/llvm/include/llvm/Analysis/PostDominators.h b/llvm/include/llvm/Analysis/PostDominators.h
index 07d1a86f0d1..93884c762ff 100644
--- a/llvm/include/llvm/Analysis/PostDominators.h
+++ b/llvm/include/llvm/Analysis/PostDominators.h
@@ -25,7 +25,17 @@ class PreservedAnalyses;
 /// compute the post-dominator tree.
 ///
 struct PostDominatorTree : public DominatorTreeBase<BasicBlock> {
+  typedef DominatorTreeBase<BasicBlock> Base;
+
   PostDominatorTree() : DominatorTreeBase<BasicBlock>(true) {}
+
+  PostDominatorTree(PostDominatorTree &&Arg)
+    : Base(std::move(static_cast<Base &>(Arg))) {}
+
+  PostDominatorTree &operator=(PostDominatorTree &&RHS) {
+    Base::operator=(std::move(static_cast<Base &>(RHS)));
+    return *this;
+  }
 };
 
 /// \brief Analysis pass which computes a \c PostDominatorTree.