From 5b296e307f71bcaf3d31eff4a04ba5d2016eb628 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 30 Apr 2010 18:27:57 +0000
Subject: [PATCH] Properly escape edge source and destination labels.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102728 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Support/GraphWriter.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/llvm/Support/GraphWriter.h b/include/llvm/Support/GraphWriter.h
index 28fa92f99e0..13e6682ebfd 100644
--- a/include/llvm/Support/GraphWriter.h
+++ b/include/llvm/Support/GraphWriter.h
@@ -174,7 +174,8 @@ public:
       unsigned i = 0, e = DTraits.numEdgeDestLabels(Node);
       for (; i != e && i != 64; ++i) {
         if (i) O << "|";
-        O << "<d" << i << ">" << DTraits.getEdgeDestLabel(Node, i);
+        O << "<d" << i << ">"
+          << DOT::EscapeString(DTraits.getEdgeDestLabel(Node, i));
       }
 
       if (i != e)
@@ -230,7 +231,7 @@ public:
       for (unsigned i = 0; i != NumEdgeSources; ++i) {
         if (i) O << "|";
         O << "<s" << i << ">";
-        if (EdgeSourceLabels) O << (*EdgeSourceLabels)[i];
+        if (EdgeSourceLabels) O << DOT::EscapeString((*EdgeSourceLabels)[i]);
       }
       O << "}}";
     }