//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
+#include "ScheduleDAGSDNodes.h"
#include "llvm/Constants.h"
#include "llvm/Function.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/Target/MRegisterInfo.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/CodeGen/PseudoSourceValue.h"
+#include "llvm/Analysis/DebugInfo.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>
-#include <sstream>
using namespace llvm;
namespace llvm {
template<>
struct DOTGraphTraits<SelectionDAG*> : public DefaultDOTGraphTraits {
+
+ explicit DOTGraphTraits(bool isSimple=false) :
+ DefaultDOTGraphTraits(isSimple) {}
+
+ static bool hasEdgeDestLabels() {
+ return true;
+ }
+
+ static unsigned numEdgeDestLabels(const void *Node) {
+ return ((const SDNode *) Node)->getNumValues();
+ }
+
+ static std::string getEdgeDestLabel(const void *Node, unsigned i) {
+ return ((const SDNode *) Node)->getValueType(i).getEVTString();
+ }
+
+ template<typename EdgeIter>
+ static std::string getEdgeSourceLabel(const void *Node, EdgeIter I) {
+ return itostr(I - SDNodeIterator::begin((SDNode *) Node));
+ }
+
+ /// edgeTargetsEdgeSource - This method returns true if this outgoing edge
+ /// should actually target another edge source, not a node. If this method
+ /// is implemented, getEdgeTarget should be implemented.
+ template<typename EdgeIter>
+ static bool edgeTargetsEdgeSource(const void *Node, EdgeIter I) {
+ return true;
+ }
+
+ /// getEdgeTarget - If edgeTargetsEdgeSource returns true, this method is
+ /// called to determine which outgoing edge of Node is the target of this
+ /// edge.
+ template<typename EdgeIter>
+ static EdgeIter getEdgeTarget(const void *Node, EdgeIter I) {
+ SDNode *TargetNode = *I;
+ SDNodeIterator NI = SDNodeIterator::begin(TargetNode);
+ std::advance(NI, I.getNode()->getOperand(I.getOperand()).getResNo());
+ return NI;
+ }
+
static std::string getGraphName(const SelectionDAG *G) {
return G->getMachineFunction().getFunction()->getName();
}
static bool renderGraphFromBottomUp() {
return true;
}
-
+
static bool hasNodeAddressLabel(const SDNode *Node,
const SelectionDAG *Graph) {
return true;
}
-
+
/// If you want to override the dot attributes printed for a particular
/// edge, override this method.
template<typename EdgeIter>
static std::string getEdgeAttributes(const void *Node, EdgeIter EI) {
- SDOperand Op = EI.getNode()->getOperand(EI.getOperand());
- MVT::ValueType VT = Op.getValueType();
- if (VT == MVT::Flag)
+ SDValue Op = EI.getNode()->getOperand(EI.getOperand());
+ EVT VT = Op.getValueType();
+ if (VT == MVT::Glue)
return "color=red,style=bold";
else if (VT == MVT::Other)
- return "style=dashed";
+ return "color=blue,style=dashed";
return "";
}
-
- static std::string getNodeLabel(const SDNode *Node,
- const SelectionDAG *Graph);
+
+ static std::string getSimpleNodeLabel(const SDNode *Node,
+ const SelectionDAG *G) {
+ std::string Result = Node->getOperationName(G);
+ {
+ raw_string_ostream OS(Result);
+ Node->print_details(OS, G);
+ }
+ return Result;
+ }
+ std::string getNodeLabel(const SDNode *Node, const SelectionDAG *Graph);
static std::string getNodeAttributes(const SDNode *N,
const SelectionDAG *Graph) {
#ifndef NDEBUG
static void addCustomGraphFeatures(SelectionDAG *G,
GraphWriter<SelectionDAG*> &GW) {
GW.emitSimpleNode(0, "plaintext=circle", "GraphRoot");
- if (G->getRoot().Val)
- GW.emitEdge(0, -1, G->getRoot().Val, -1, "");
+ if (G->getRoot().getNode())
+ GW.emitEdge(0, -1, G->getRoot().getNode(), G->getRoot().getResNo(),
+ "color=blue,style=dashed");
}
};
}
std::string DOTGraphTraits<SelectionDAG*>::getNodeLabel(const SDNode *Node,
const SelectionDAG *G) {
- std::string Op = Node->getOperationName(G);
-
- for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i)
- if (Node->getValueType(i) == MVT::Other)
- Op += ":ch";
- else
- Op = Op + ":" + MVT::getValueTypeString(Node->getValueType(i));
-
- if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(Node)) {
- Op += ": " + utostr(CSDN->getValue());
- } else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(Node)) {
- Op += ": " + ftostr(CSDN->getValue());
- } else if (const GlobalAddressSDNode *GADN =
- dyn_cast<GlobalAddressSDNode>(Node)) {
- int offset = GADN->getOffset();
- Op += ": " + GADN->getGlobal()->getName();
- if (offset > 0)
- Op += "+" + itostr(offset);
- else
- Op += itostr(offset);
- } else if (const FrameIndexSDNode *FIDN = dyn_cast<FrameIndexSDNode>(Node)) {
- Op += " " + itostr(FIDN->getIndex());
- } else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(Node)){
- if (CP->isMachineConstantPoolEntry()) {
- std::ostringstream SS;
- CP->getMachineCPVal()->print(SS);
- Op += "<" + SS.str() + ">";
- } else {
- if (ConstantFP *CFP = dyn_cast<ConstantFP>(CP->getConstVal()))
- Op += "<" + ftostr(CFP->getValue()) + ">";
- else if (ConstantInt *CI = dyn_cast<ConstantInt>(CP->getConstVal()))
- Op += "<" + utostr(CI->getZExtValue()) + ">";
- else {
- std::ostringstream SS;
- WriteAsOperand(SS, CP->getConstVal(), false);
- Op += "<" + SS.str() + ">";
- }
- }
- } else if (const BasicBlockSDNode *BBDN = dyn_cast<BasicBlockSDNode>(Node)) {
- Op = "BB: ";
- const Value *LBB = (const Value*)BBDN->getBasicBlock()->getBasicBlock();
- if (LBB)
- Op += LBB->getName();
- //Op += " " + (const void*)BBDN->getBasicBlock();
- } else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(Node)) {
- if (G && R->getReg() != 0 &&
- MRegisterInfo::isPhysicalRegister(R->getReg())) {
- Op = Op + " " + G->getTarget().getRegisterInfo()->getName(R->getReg());
- } else {
- Op += " #" + utostr(R->getReg());
- }
- } else if (const ExternalSymbolSDNode *ES =
- dyn_cast<ExternalSymbolSDNode>(Node)) {
- Op += "'" + std::string(ES->getSymbol()) + "'";
- } else if (const SrcValueSDNode *M = dyn_cast<SrcValueSDNode>(Node)) {
- if (M->getValue())
- Op += "<" + M->getValue()->getName() + ":" + itostr(M->getOffset()) + ">";
- else
- Op += "<null:" + itostr(M->getOffset()) + ">";
- } else if (const VTSDNode *N = dyn_cast<VTSDNode>(Node)) {
- Op = Op + " VT=" + getValueTypeString(N->getVT());
- } else if (const StringSDNode *N = dyn_cast<StringSDNode>(Node)) {
- Op = Op + "\"" + N->getValue() + "\"";
- } else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(Node)) {
- bool doExt = true;
- switch (LD->getExtensionType()) {
- default: doExt = false; break;
- case ISD::EXTLOAD:
- Op = Op + "<anyext ";
- break;
- case ISD::SEXTLOAD:
- Op = Op + " <sext ";
- break;
- case ISD::ZEXTLOAD:
- Op = Op + " <zext ";
- break;
- }
- if (doExt)
- Op = Op + MVT::getValueTypeString(LD->getLoadedVT()) + ">";
-
- Op += LD->getAddressingModeName(LD->getAddressingMode());
- } else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(Node)) {
- if (ST->isTruncatingStore())
- Op = Op + "<trunc " + MVT::getValueTypeString(ST->getStoredVT()) + ">";
- Op += ST->getAddressingModeName(ST->getAddressingMode());
- }
-
- return Op;
+ return DOTGraphTraits<SelectionDAG*>::getSimpleNodeLabel(Node, G);
}
/// viewGraph - Pop up a ghostview window with the reachable parts of the DAG
/// rendered using 'dot'.
///
-void SelectionDAG::viewGraph() {
+void SelectionDAG::viewGraph(const std::string &Title) {
// This code is only for debugging!
#ifndef NDEBUG
- ViewGraph(this, "dag." + getMachineFunction().getFunction()->getName());
+ ViewGraph(this, "dag." + getMachineFunction().getFunction()->getNameStr(),
+ false, Title);
#else
- std::cerr << "SelectionDAG::viewGraph is only available in debug builds on "
- << "systems with Graphviz or gv!\n";
+ errs() << "SelectionDAG::viewGraph is only available in debug builds on "
+ << "systems with Graphviz or gv!\n";
#endif // NDEBUG
}
+// This overload is defined out-of-line here instead of just using a
+// default parameter because this is easiest for gdb to call.
+void SelectionDAG::viewGraph() {
+ viewGraph("");
+}
/// clearGraphAttrs - Clear all previously defined node graph attributes.
/// Intended to be used from a debugging tool (eg. gdb).
#ifndef NDEBUG
NodeGraphAttrs.clear();
#else
- std::cerr << "SelectionDAG::clearGraphAttrs is only available in debug builds"
- << " on systems with Graphviz or gv!\n";
+ errs() << "SelectionDAG::clearGraphAttrs is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
#endif
}
#ifndef NDEBUG
NodeGraphAttrs[N] = Attrs;
#else
- std::cerr << "SelectionDAG::setGraphAttrs is only available in debug builds"
- << " on systems with Graphviz or gv!\n";
+ errs() << "SelectionDAG::setGraphAttrs is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
#endif
}
#ifndef NDEBUG
std::map<const SDNode *, std::string>::const_iterator I =
NodeGraphAttrs.find(N);
-
+
if (I != NodeGraphAttrs.end())
return I->second;
else
return "";
#else
- std::cerr << "SelectionDAG::getGraphAttrs is only available in debug builds"
- << " on systems with Graphviz or gv!\n";
- return std::string("");
+ errs() << "SelectionDAG::getGraphAttrs is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
+ return std::string();
#endif
}
#ifndef NDEBUG
NodeGraphAttrs[N] = std::string("color=") + Color;
#else
- std::cerr << "SelectionDAG::setGraphColor is only available in debug builds"
- << " on systems with Graphviz or gv!\n";
+ errs() << "SelectionDAG::setGraphColor is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
#endif
}
+/// setSubgraphColorHelper - Implement setSubgraphColor. Return
+/// whether we truncated the search.
+///
+bool SelectionDAG::setSubgraphColorHelper(SDNode *N, const char *Color, DenseSet<SDNode *> &visited,
+ int level, bool &printed) {
+ bool hit_limit = false;
+
+#ifndef NDEBUG
+ if (level >= 20) {
+ if (!printed) {
+ printed = true;
+ DEBUG(dbgs() << "setSubgraphColor hit max level\n");
+ }
+ return true;
+ }
+
+ unsigned oldSize = visited.size();
+ visited.insert(N);
+ if (visited.size() != oldSize) {
+ setGraphColor(N, Color);
+ for(SDNodeIterator i = SDNodeIterator::begin(N), iend = SDNodeIterator::end(N);
+ i != iend;
+ ++i) {
+ hit_limit = setSubgraphColorHelper(*i, Color, visited, level+1, printed) || hit_limit;
+ }
+ }
+#else
+ errs() << "SelectionDAG::setSubgraphColor is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
+#endif
+ return hit_limit;
+}
+
+/// setSubgraphColor - Convenience for setting subgraph color attribute.
+///
+void SelectionDAG::setSubgraphColor(SDNode *N, const char *Color) {
+#ifndef NDEBUG
+ DenseSet<SDNode *> visited;
+ bool printed = false;
+ if (setSubgraphColorHelper(N, Color, visited, 0, printed)) {
+ // Visually mark that we hit the limit
+ if (strcmp(Color, "red") == 0) {
+ setSubgraphColorHelper(N, "blue", visited, 0, printed);
+ } else if (strcmp(Color, "yellow") == 0) {
+ setSubgraphColorHelper(N, "green", visited, 0, printed);
+ }
+ }
+
+#else
+ errs() << "SelectionDAG::setSubgraphColor is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
+#endif
+}
+
+std::string ScheduleDAGSDNodes::getGraphNodeLabel(const SUnit *SU) const {
+ std::string s;
+ raw_string_ostream O(s);
+ O << "SU(" << SU->NodeNum << "): ";
+ if (SU->getNode()) {
+ SmallVector<SDNode *, 4> GluedNodes;
+ for (SDNode *N = SU->getNode(); N; N = N->getGluedNode())
+ GluedNodes.push_back(N);
+ while (!GluedNodes.empty()) {
+ O << DOTGraphTraits<SelectionDAG*>
+ ::getSimpleNodeLabel(GluedNodes.back(), DAG);
+ GluedNodes.pop_back();
+ if (!GluedNodes.empty())
+ O << "\n ";
+ }
+ } else {
+ O << "CROSS RC COPY";
+ }
+ return O.str();
+}
+
+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");
+ const SDNode *N = DAG->getRoot().getNode();
+ if (N && N->getNodeId() != -1)
+ GW.emitEdge(0, -1, &SUnits[N->getNodeId()], -1,
+ "color=blue,style=dashed");
+ }
+}
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