From 18c725e735b1bfb756c2320d812bb095f2c98574 Mon Sep 17 00:00:00 2001
From: Alina Sbirlea <asbirlea@google.com>
Date: Mon, 27 Jul 2020 16:41:55 -0700
Subject: [PATCH] [DomTree] Remove dead code.[NFC]

---
 llvm/include/llvm/Support/GenericDomTreeConstruction.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/llvm/include/llvm/Support/GenericDomTreeConstruction.h b/llvm/include/llvm/Support/GenericDomTreeConstruction.h
index 709276ab7a29..5a1f03c879db 100644
--- a/llvm/include/llvm/Support/GenericDomTreeConstruction.h
+++ b/llvm/include/llvm/Support/GenericDomTreeConstruction.h
@@ -92,13 +92,9 @@ struct SemiNCAInfo {
 
   BatchUpdateInfo *BatchUpdates;
   using BatchUpdatePtr = BatchUpdateInfo *;
-  std::unique_ptr<GraphDiffT> EmptyGD;
 
   // If BUI is a nullptr, then there's no batch update in progress.
-  SemiNCAInfo(BatchUpdatePtr BUI) : BatchUpdates(BUI) {
-    if (!BatchUpdates)
-      EmptyGD = std::make_unique<GraphDiffT>();
-  }
+  SemiNCAInfo(BatchUpdatePtr BUI) : BatchUpdates(BUI) {}
 
   void clear() {
     NumToNode = {nullptr}; // Restore to initial state with a dummy start node.