2002-07-10 22:38:08 +00:00
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//===- Printer.cpp - Code for printing data structure graphs nicely -------===//
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//
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// This file implements the 'dot' graph printer.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/DataStructure.h"
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2002-10-02 22:14:38 +00:00
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#include "llvm/Analysis/DSGraph.h"
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2002-10-13 19:31:57 +00:00
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#include "llvm/Analysis/DSGraphTraits.h"
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2002-07-10 22:38:08 +00:00
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#include "llvm/Module.h"
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#include "llvm/Assembly/Writer.h"
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2002-07-31 17:15:40 +00:00
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#include "Support/CommandLine.h"
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2002-10-13 19:31:57 +00:00
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#include "Support/GraphWriter.h"
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2002-07-10 22:38:08 +00:00
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#include <fstream>
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#include <sstream>
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2002-07-18 00:12:30 +00:00
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using std::string;
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2002-07-10 22:38:08 +00:00
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2002-10-03 20:38:41 +00:00
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// OnlyPrintMain - The DataStructure printer exposes this option to allow
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// printing of only the graph for "main".
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//
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static cl::opt<bool> OnlyPrintMain("only-print-main-ds", cl::ReallyHidden);
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2002-07-10 22:38:08 +00:00
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void DSNode::dump() const { print(std::cerr, 0); }
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2002-10-01 22:33:50 +00:00
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static string getCaption(const DSNode *N, const DSGraph *G) {
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2002-07-10 22:38:08 +00:00
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std::stringstream OS;
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2002-10-01 22:33:50 +00:00
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Module *M = G && &G->getFunction() ? G->getFunction().getParent() : 0;
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for (unsigned i = 0, e = N->getTypeEntries().size(); i != e; ++i) {
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2002-10-18 18:22:46 +00:00
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WriteTypeSymbolic(OS, N->getTypeEntries()[i].Ty, M);
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if (N->getTypeEntries()[i].Offset)
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OS << "@" << N->getTypeEntries()[i].Offset;
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2002-10-20 20:29:10 +00:00
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if (N->getTypeEntries()[i].isArray)
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2002-10-20 20:39:17 +00:00
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OS << " array";
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2002-10-01 22:33:50 +00:00
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OS << "\n";
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}
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if (N->NodeType & DSNode::ScalarNode) OS << "S";
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if (N->NodeType & DSNode::AllocaNode) OS << "A";
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if (N->NodeType & DSNode::NewNode ) OS << "N";
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if (N->NodeType & DSNode::GlobalNode) OS << "G";
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if (N->NodeType & DSNode::Incomplete) OS << "I";
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2002-10-17 22:13:28 +00:00
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if (N->NodeType & DSNode::Modified ) OS << "M";
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if (N->NodeType & DSNode::Read ) OS << "R";
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2002-10-01 22:33:50 +00:00
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for (unsigned i = 0, e = N->getGlobals().size(); i != e; ++i) {
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WriteAsOperand(OS, N->getGlobals()[i], false, true, M);
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2002-07-11 20:33:32 +00:00
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OS << "\n";
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}
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2002-10-01 22:33:50 +00:00
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if ((N->NodeType & DSNode::ScalarNode) && G) {
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2002-07-11 20:33:32 +00:00
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const std::map<Value*, DSNodeHandle> &VM = G->getValueMap();
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for (std::map<Value*, DSNodeHandle>::const_iterator I = VM.begin(),
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E = VM.end(); I != E; ++I)
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2002-10-01 22:33:50 +00:00
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if (I->second.getNode() == N) {
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2002-07-11 20:33:32 +00:00
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WriteAsOperand(OS, I->first, false, true, M);
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2002-10-01 22:33:50 +00:00
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OS << "\n";
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2002-07-11 20:33:32 +00:00
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}
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}
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2002-07-10 22:38:08 +00:00
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return OS.str();
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}
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2002-10-13 19:31:57 +00:00
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template<>
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2002-10-17 01:02:46 +00:00
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struct DOTGraphTraits<const DSGraph*> : public DefaultDOTGraphTraits {
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static std::string getGraphName(const DSGraph *G) {
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2002-10-13 19:31:57 +00:00
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if (G->hasFunction())
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return "Function " + G->getFunction().getName();
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else
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return "Non-function graph";
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}
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2002-10-17 01:02:46 +00:00
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static const char *getGraphProperties(const DSGraph *G) {
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2002-10-16 01:18:27 +00:00
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return "\tedge [arrowtail=\"dot\"];\n"
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2002-10-13 19:31:57 +00:00
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"\tsize=\"10,7.5\";\n"
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"\trotate=\"90\";\n";
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}
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2002-10-17 01:02:46 +00:00
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static std::string getNodeLabel(const DSNode *Node, const DSGraph *Graph) {
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2002-10-13 19:31:57 +00:00
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return getCaption(Node, Graph);
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}
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2002-10-17 01:02:46 +00:00
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static std::string getNodeAttributes(const DSNode *N) {
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2002-10-16 01:18:27 +00:00
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return "shape=Mrecord";//fontname=Courier";
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2002-10-13 19:31:57 +00:00
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}
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2002-10-17 01:02:46 +00:00
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static int getEdgeSourceLabel(const DSNode *Node, DSNode::iterator I) {
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2002-10-16 01:18:27 +00:00
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assert(Node == I.getNode() && "Iterator not for this node!");
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2002-10-16 01:43:11 +00:00
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return Node->getMergeMapLabel(I.getOffset());
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2002-10-16 01:18:27 +00:00
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}
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2002-10-16 02:04:36 +00:00
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/// addCustomGraphFeatures - Use this graph writing hook to emit call nodes
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/// and the return node.
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///
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2002-10-17 01:02:46 +00:00
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static void addCustomGraphFeatures(const DSGraph *G,
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GraphWriter<const DSGraph*> &GW) {
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2002-10-16 02:04:36 +00:00
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// Output the returned value pointer...
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if (G->getRetNode().getNode() != 0) {
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// Output the return node...
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GW.emitSimpleNode((void*)1, "plaintext=circle", "returning");
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// Add edge from return node to real destination
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int RetEdgeDest = G->getRetNode().getOffset();
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if (RetEdgeDest == 0) RetEdgeDest = -1;
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GW.emitEdge((void*)1, -1, G->getRetNode().getNode(),
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RetEdgeDest, "arrowtail=tee,color=gray63");
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}
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2002-10-16 20:16:16 +00:00
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// Output all of the call nodes...
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2002-10-20 18:07:37 +00:00
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const std::vector<DSCallSite> &FCs = G->getFunctionCalls();
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2002-10-16 20:16:16 +00:00
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for (unsigned i = 0, e = FCs.size(); i != e; ++i) {
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2002-10-20 18:07:37 +00:00
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const DSCallSite &Call = FCs[i];
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2002-10-21 02:08:03 +00:00
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GW.emitSimpleNode(&Call, "shape=record", "call", Call.getNumPtrArgs()+2);
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2002-10-16 20:16:16 +00:00
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2002-10-21 02:08:03 +00:00
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for (unsigned j = 0, e = Call.getNumPtrArgs(); j != e; ++j)
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if (DSNode *N = Call.getPtrArg(j).getNode()) {
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int EdgeDest = Call.getPtrArg(j).getOffset();
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2002-10-16 20:16:16 +00:00
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if (EdgeDest == 0) EdgeDest = -1;
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2002-10-21 02:08:03 +00:00
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GW.emitEdge(&Call, j+2, N, EdgeDest, "color=gray63");
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2002-10-16 20:16:16 +00:00
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}
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}
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2002-10-16 02:04:36 +00:00
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}
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2002-10-13 19:31:57 +00:00
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};
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2002-10-17 01:02:46 +00:00
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void DSNode::print(std::ostream &O, const DSGraph *G) const {
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GraphWriter<const DSGraph *> W(O, G);
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W.writeNode(this);
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}
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void DSGraph::print(std::ostream &O) const {
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WriteGraph(O, this, "DataStructures");
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}
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2002-10-13 19:31:57 +00:00
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2002-10-17 01:02:46 +00:00
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void DSGraph::writeGraphToFile(std::ostream &O, const string &GraphName) const {
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2002-10-01 22:33:50 +00:00
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string Filename = GraphName + ".dot";
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2002-07-30 22:07:26 +00:00
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O << "Writing '" << Filename << "'...";
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std::ofstream F(Filename.c_str());
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if (F.good()) {
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2002-10-17 01:02:46 +00:00
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print(F);
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2002-10-01 22:33:50 +00:00
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O << " [" << getGraphSize() << "+" << getFunctionCalls().size() << "]\n";
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2002-07-30 22:07:26 +00:00
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} else {
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O << " error opening file for writing!\n";
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}
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}
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2002-07-18 00:12:30 +00:00
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template <typename Collection>
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2002-07-27 01:12:15 +00:00
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static void printCollection(const Collection &C, std::ostream &O,
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const Module *M, const string &Prefix) {
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if (M == 0) {
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O << "Null Module pointer, cannot continue!\n";
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return;
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}
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for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
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2002-07-31 17:15:40 +00:00
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if (!I->isExternal() && (I->getName() == "main" || !OnlyPrintMain))
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2002-10-01 22:33:50 +00:00
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C.getDSGraph((Function&)*I).writeGraphToFile(O, Prefix+I->getName());
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2002-07-10 22:38:08 +00:00
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}
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2002-07-18 00:12:30 +00:00
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// print - Print out the analysis results...
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2002-07-27 01:12:15 +00:00
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void LocalDataStructures::print(std::ostream &O, const Module *M) const {
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2002-10-01 22:33:50 +00:00
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printCollection(*this, O, M, "ds.");
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2002-07-18 00:12:30 +00:00
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}
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2002-07-27 01:12:15 +00:00
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void BUDataStructures::print(std::ostream &O, const Module *M) const {
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2002-10-01 22:33:50 +00:00
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printCollection(*this, O, M, "bu.");
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2002-10-03 20:38:41 +00:00
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#if 0
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2002-07-30 22:07:26 +00:00
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for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
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if (!I->isExternal()) {
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2002-10-01 22:33:50 +00:00
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(*getDSGraph(*I).GlobalsGraph)->writeGraphToFile(O, "gg.program");
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2002-07-30 22:07:26 +00:00
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break;
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}
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2002-10-03 20:38:41 +00:00
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#endif
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2002-07-30 22:07:26 +00:00
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}
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void TDDataStructures::print(std::ostream &O, const Module *M) const {
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2002-10-01 22:33:50 +00:00
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printCollection(*this, O, M, "td.");
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2002-10-17 04:24:30 +00:00
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#if 0
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2002-07-30 22:07:26 +00:00
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for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
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if (!I->isExternal()) {
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2002-10-01 22:33:50 +00:00
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(*getDSGraph(*I).GlobalsGraph)->writeGraphToFile(O, "gg.program");
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2002-07-30 22:07:26 +00:00
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break;
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}
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2002-10-01 22:33:50 +00:00
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#endif
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2002-10-17 04:24:30 +00:00
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}
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