From 491e1645d6967a4df0802b14f4e65af1dfeaf8db Mon Sep 17 00:00:00 2001
From: Reid Kleckner <rnk@google.com>
Date: Thu, 19 Nov 2015 00:05:09 +0000
Subject: [PATCH] Initialize PersistentId for HandleSDNode, as these will never
 be inserted into the DAG

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253524 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/CodeGen/SelectionDAGNodes.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index e0eadfaa2b30..66f488203f95 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -1074,6 +1074,9 @@ class HandleSDNode : public SDNode {
 public:
   explicit HandleSDNode(SDValue X)
     : SDNode(ISD::HANDLENODE, 0, DebugLoc(), getSDVTList(MVT::Other)) {
+    // HandleSDNodes are never inserted into the DAG, so they won't be
+    // auto-numbered. Use ID 65535 as a sentinel.
+    PersistentId = 0xffff;
     InitOperands(&Op, X);
   }
   ~HandleSDNode();