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Cleanup in preparation for misched: Move DAG visualization logic.
Soon, ScheduleDAG will not refer to the BB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152177 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -519,6 +519,7 @@ namespace llvm {
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/// viewGraph - Pop up a GraphViz/gv window with the ScheduleDAG rendered
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/// using 'dot'.
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///
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void viewGraph(const Twine &Name, const Twine &Title);
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void viewGraph();
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/// EmitSchedule - Insert MachineInstrs into the MachineBasicBlock
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@ -534,6 +535,9 @@ namespace llvm {
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/// of the ScheduleDAG.
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virtual std::string getGraphNodeLabel(const SUnit *SU) const = 0;
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/// getDAGLabel - Return a label for the region of code covered by the DAG.
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virtual std::string getDAGName() const = 0;
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/// addCustomGraphFeatures - Add custom features for a visualization of
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/// the ScheduleDAG.
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virtual void addCustomGraphFeatures(GraphWriter<ScheduleDAG*> &) const {}
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@ -808,6 +808,12 @@ std::string ScheduleDAGInstrs::getGraphNodeLabel(const SUnit *SU) const {
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return oss.str();
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}
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/// Return the basic block label. It is not necessarilly unique because a block
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/// contains multiple scheduling regions. But it is fine for visualization.
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std::string ScheduleDAGInstrs::getDAGName() const {
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return "dag." + BB->getFullName();
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}
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// EmitSchedule - Emit the machine code in scheduled order.
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MachineBasicBlock *ScheduleDAGInstrs::EmitSchedule() {
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Begin = InsertPos;
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@ -285,6 +285,8 @@ namespace llvm {
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virtual std::string getGraphNodeLabel(const SUnit *SU) const;
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virtual std::string getDAGName() const;
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protected:
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SUnit *getSUnit(MachineInstr *MI) const {
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DenseMap<MachineInstr*, SUnit*>::const_iterator I = MISUnitMap.find(MI);
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@ -81,18 +81,17 @@ std::string DOTGraphTraits<ScheduleDAG*>::getNodeLabel(const SUnit *SU,
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/// viewGraph - Pop up a ghostview window with the reachable parts of the DAG
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/// rendered using 'dot'.
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///
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void ScheduleDAG::viewGraph() {
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// This code is only for debugging!
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void ScheduleDAG::viewGraph(const Twine &Name, const Twine &Title) {
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// This code is only for debugging!
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#ifndef NDEBUG
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if (BB->getBasicBlock())
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ViewGraph(this, "dag." + MF.getFunction()->getName(), false,
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"Scheduling-Units Graph for " + MF.getFunction()->getName() +
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":" + BB->getBasicBlock()->getName());
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else
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ViewGraph(this, "dag." + MF.getFunction()->getName(), false,
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"Scheduling-Units Graph for " + MF.getFunction()->getName());
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ViewGraph(this, Name, false, Title);
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#else
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errs() << "ScheduleDAG::viewGraph is only available in debug builds on "
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<< "systems with Graphviz or gv!\n";
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#endif // NDEBUG
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}
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/// Out-of-line implementation with no arguments is handy for gdb.
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void ScheduleDAG::viewGraph() {
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viewGraph(getDAGName(), "Scheduling-Units Graph for " + getDAGName());
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}
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@ -800,3 +800,8 @@ MachineBasicBlock *ScheduleDAGSDNodes::EmitSchedule() {
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InsertPos = Emitter.getInsertPos();
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return BB;
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}
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/// Return the basic block label.
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std::string ScheduleDAGSDNodes::getDAGName() const {
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return "sunit-dag." + BB->getFullName();
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}
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@ -115,6 +115,8 @@ namespace llvm {
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virtual std::string getGraphNodeLabel(const SUnit *SU) const;
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virtual std::string getDAGName() const;
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virtual void getCustomGraphFeatures(GraphWriter<ScheduleDAG*> &GW) const;
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/// RegDefIter - In place iteration over the values defined by an
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