/3rd_party/llvm/lib/CodeGen/ScheduleDAGPrinter.cpp
https://code.google.com/p/softart/ · C++ · 100 lines · 67 code · 14 blank · 19 comment · 3 complexity · 56654e6d553d650b33e4878ff76a9d0a MD5 · raw file
- //===-- 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/CodeGen/ScheduleDAG.h"
- #include "llvm/ADT/DenseSet.h"
- #include "llvm/ADT/StringExtras.h"
- #include "llvm/Assembly/Writer.h"
- #include "llvm/CodeGen/MachineConstantPool.h"
- #include "llvm/CodeGen/MachineFunction.h"
- #include "llvm/CodeGen/MachineModuleInfo.h"
- #include "llvm/IR/Constants.h"
- #include "llvm/Support/Debug.h"
- #include "llvm/Support/GraphWriter.h"
- #include "llvm/Support/raw_ostream.h"
- #include "llvm/Target/TargetMachine.h"
- #include "llvm/Target/TargetRegisterInfo.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.getName();
- }
- static bool renderGraphFromBottomUp() {
- return true;
- }
- static bool isNodeHidden(const SUnit *Node) {
- return (Node->NumPreds > 10 || Node->NumSuccs > 10);
- }
- 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,
- const ScheduleDAG *Graph) {
- 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(const Twine &Name, const Twine &Title) {
- // This code is only for debugging!
- #ifndef NDEBUG
- ViewGraph(this, Name, false, Title);
- #else
- errs() << "ScheduleDAG::viewGraph is only available in debug builds on "
- << "systems with Graphviz or gv!\n";
- #endif // NDEBUG
- }
- /// Out-of-line implementation with no arguments is handy for gdb.
- void ScheduleDAG::viewGraph() {
- viewGraph(getDAGName(), "Scheduling-Units Graph for " + getDAGName());
- }