[libFuzzer] print a bit fewer lines

[oota-llvm.git] / lib / CodeGen / SelectionDAG / SelectionDAGPrinter.cpp

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
index 59449017dd5aa8d714bf39cec7611741cf07adfc..2764688518c2b00a94fbc83eba88fa452afbd039 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
@@ -18,9 +18,8 @@
 #include "llvm/CodeGen/MachineConstantPool.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/DebugInfo.h"
 #include "llvm/IR/Constants.h"
-#include "llvm/IR/Writer.h"
+#include "llvm/IR/DebugInfo.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/GraphWriter.h"
 #include "llvm/Support/raw_ostream.h"
@@ -28,6 +27,8 @@
 #include "llvm/Target/TargetRegisterInfo.h"
 using namespace llvm;
 
+#define DEBUG_TYPE "dag-printer"
+
 namespace llvm {
   template<>
   struct DOTGraphTraits<SelectionDAG*> : public DefaultDOTGraphTraits {
@@ -79,9 +80,16 @@ namespace llvm {
       return true;
     }
 
-    static bool hasNodeAddressLabel(const SDNode *Node,
-                                    const SelectionDAG *Graph) {
-      return true;
+    static std::string getNodeIdentifierLabel(const SDNode *Node,
+                                              const SelectionDAG *Graph) {
+      std::string R;
+      raw_string_ostream OS(R);
+#ifndef NDEBUG
+      OS << 't' << Node->PersistentId;
+#else
+      OS << static_cast<const void *>(Node);
+#endif
+      return R;
     }
 
     /// If you want to override the dot attributes printed for a particular
@@ -125,9 +133,9 @@ namespace llvm {
 
     static void addCustomGraphFeatures(SelectionDAG *G,
                                        GraphWriter<SelectionDAG*> &GW) {
-      GW.emitSimpleNode(0, "plaintext=circle", "GraphRoot");
+      GW.emitSimpleNode(nullptr, "plaintext=circle", "GraphRoot");
       if (G->getRoot().getNode())
-        GW.emitEdge(0, -1, G->getRoot().getNode(), G->getRoot().getResNo(),
+        GW.emitEdge(nullptr, -1, G->getRoot().getNode(), G->getRoot().getResNo(),
                     "color=blue,style=dashed");
     }
   };
@@ -290,10 +298,10 @@ std::string ScheduleDAGSDNodes::getGraphNodeLabel(const SUnit *SU) const {
 void ScheduleDAGSDNodes::getCustomGraphFeatures(GraphWriter<ScheduleDAG*> &GW) const {
   if (DAG) {
     // Draw a special "GraphRoot" node to indicate the root of the graph.
-    GW.emitSimpleNode(0, "plaintext=circle", "GraphRoot");
+    GW.emitSimpleNode(nullptr, "plaintext=circle", "GraphRoot");
     const SDNode *N = DAG->getRoot().getNode();
     if (N && N->getNodeId() != -1)
-      GW.emitEdge(0, -1, &SUnits[N->getNodeId()], -1,
+      GW.emitEdge(nullptr, -1, &SUnits[N->getNodeId()], -1,
                   "color=blue,style=dashed");
   }
 }