From 08addbd4770a60adb6dbdc29cf73e7720f08197a Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 9 Sep 2005 22:35:03 +0000
Subject: [PATCH] Fix a crash viewing dags that have target nodes in them

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23300 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index ae0c2c8d712..c27523ae131 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2263,7 +2263,8 @@ const char *SDNode::getOperationName(const SelectionDAG *G) const {
     else {
       if (G)
         if (const TargetInstrInfo *TII = G->getTarget().getInstrInfo())
-          return TII->getName(getOpcode()-ISD::BUILTIN_OP_END);
+          if (getOpcode()-ISD::BUILTIN_OP_END < TII->getNumOpcodes())
+            return TII->getName(getOpcode()-ISD::BUILTIN_OP_END);
       return "<<Unknown Target Node>>";
     }