Added Graphviz escaping for the '|' character.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41610 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Support/GraphWriter.h b/include/llvm/Support/GraphWriter.h
index b9566b84f8b69426bfac0831b97aa0b1ac67b8b0..08bc861332796272f309694e079d19ec318540cb 100644 (file)
--- a/include/llvm/Support/GraphWriter.h
+++ b/include/llvm/Support/GraphWriter.h
@@ -52,7 +52,7 @@ namespace DOT {  // Private functions...
           break;  // don't disturb \l
       case '{': case '}':
       case '<': case '>':
-      case '"':
+      case '|': case '"':
         Str.insert(Str.begin()+i, '\\');  // Escape character...
         ++i;  // don't infinite loop
         break;