//===-- ScheduleDAGPrinter.cpp - Implement ScheduleDAG::viewGraph() -------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This implements the ScheduleDAG::viewGraph method. // //===----------------------------------------------------------------------===// #include "llvm/Constants.h" #include "llvm/Function.h" #include "llvm/Assembly/Writer.h" #include "llvm/CodeGen/ScheduleDAG.h" #include "llvm/CodeGen/MachineConstantPool.h" #include "llvm/CodeGen/MachineFunction.h" #include "llvm/CodeGen/MachineModuleInfo.h" #include "llvm/Target/TargetRegisterInfo.h" #include "llvm/Target/TargetMachine.h" #include "llvm/Support/Debug.h" #include "llvm/Support/GraphWriter.h" #include "llvm/Support/raw_ostream.h" #include "llvm/ADT/DenseSet.h" #include "llvm/ADT/StringExtras.h" #include "llvm/Config/config.h" #include <fstream> using namespace llvm; namespace llvm { template<> struct DOTGraphTraits<ScheduleDAG*> : public DefaultDOTGraphTraits { DOTGraphTraits (bool isSimple=false) : DefaultDOTGraphTraits(isSimple) {} static std::string getGraphName(const ScheduleDAG *G) { return G->MF.getFunction()->getName(); } static bool renderGraphFromBottomUp() { return true; } static bool hasNodeAddressLabel(const SUnit *Node, const ScheduleDAG *Graph) { return true; } /// If you want to override the dot attributes printed for a particular /// edge, override this method. static std::string getEdgeAttributes(const SUnit *Node, SUnitIterator EI) { if (EI.isArtificialDep()) return "color=cyan,style=dashed"; if (EI.isCtrlDep()) return "color=blue,style=dashed"; return ""; } std::string getNodeLabel(const SUnit *Node, const ScheduleDAG *Graph); static std::string getNodeAttributes(const SUnit *N, const ScheduleDAG *Graph) { return "shape=Mrecord"; } static void addCustomGraphFeatures(ScheduleDAG *G, GraphWriter<ScheduleDAG*> &GW) { return G->addCustomGraphFeatures(GW); } }; } std::string DOTGraphTraits<ScheduleDAG*>::getNodeLabel(const SUnit *SU, const ScheduleDAG *G) { return G->getGraphNodeLabel(SU); } /// viewGraph - Pop up a ghostview window with the reachable parts of the DAG /// rendered using 'dot'. /// void ScheduleDAG::viewGraph() { // This code is only for debugging! #ifndef NDEBUG if (BB->getBasicBlock()) ViewGraph(this, "dag." + MF.getFunction()->getNameStr(), false, "Scheduling-Units Graph for " + MF.getFunction()->getNameStr() + ":" + BB->getBasicBlock()->getNameStr()); else ViewGraph(this, "dag." + MF.getFunction()->getNameStr(), false, "Scheduling-Units Graph for " + MF.getFunction()->getNameStr()); #else errs() << "ScheduleDAG::viewGraph is only available in debug builds on " << "systems with Graphviz or gv!\n"; #endif // NDEBUG }