[llvm-commits] [polly] r163466 - /polly/trunk/lib/Analysis/ScopGraphPrinter.cpp

[Tobias Grosser]

Author: grosser
Date: Sat Sep  8 03:31:55 2012
New Revision: 163466

URL: http://llvm.org/viewvc/llvm-project?rev=163466&view=rev
Log:
ScopGraphPrinter: Escape error message

Otherwise a '"' in the error message, yields an invalid .dot file.

Modified:
    polly/trunk/lib/Analysis/ScopGraphPrinter.cpp

Modified: polly/trunk/lib/Analysis/ScopGraphPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/lib/Analysis/ScopGraphPrinter.cpp?rev=163466&r1=163465&r2=163466&view=diff
==============================================================================
--- polly/trunk/lib/Analysis/ScopGraphPrinter.cpp (original)
+++ polly/trunk/lib/Analysis/ScopGraphPrinter.cpp Sat Sep  8 03:31:55 2012
@@ -101,6 +101,21 @@
     return DOTGraphTraits<RegionNode*>
       ::getNodeLabel(Node, SD->getRI()->getTopLevelRegion());
   }
+
+  static std::string escapeString(std::string String) {
+    std::string Escaped;
+
+    for (std::string::iterator SI = String.begin(), SE = String.end();
+         SI != SE; ++SI) {
+
+      if (*SI == '"')
+        Escaped += '\\';
+
+      Escaped += *SI;
+    }
+    return Escaped;
+  }
+
   // Print the cluster of the subregions. This groups the single basic blocks
   // and adds a different background color for each group.
   static void printRegionCluster(const ScopDetection *SD, const Region *R,
@@ -108,6 +123,7 @@
     O.indent(2 * depth) << "subgraph cluster_" << static_cast<const void*>(R)
       << " {\n";
     std::string ErrorMessage = SD->regionIsInvalidBecause(R);
+    ErrorMessage = escapeString(ErrorMessage);
     O.indent(2 * (depth + 1)) << "label = \"" << ErrorMessage << "\";\n";
 
     if (SD->isMaxRegionInScop(*R)) {