#define LLVM_SUPPORT_GRAPHWRITER_H
#include "llvm/Support/DOTGraphTraits.h"
-#include "llvm/Support/Streams.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/GraphTraits.h"
#include "llvm/System/Path.h"
-#include <fstream>
#include <vector>
#include <cassert>
namespace llvm {
namespace DOT { // Private functions...
- inline std::string EscapeString(const std::string &Label) {
- std::string Str(Label);
- for (unsigned i = 0; i != Str.length(); ++i)
- switch (Str[i]) {
- case '\n':
- Str.insert(Str.begin()+i, '\\'); // Escape character...
- ++i;
- Str[i] = 'n';
- break;
- case '\t':
- Str.insert(Str.begin()+i, ' '); // Convert to two spaces
- ++i;
- Str[i] = ' ';
- break;
- case '\\':
- if (i+1 != Str.length())
- switch (Str[i+1]) {
- case 'l': continue; // don't disturb \l
- case '|': case '{': case '}':
- Str.erase(Str.begin()+i); continue;
- default: break;
- }
- case '{': case '}':
- case '<': case '>':
- case '|': case '"':
- Str.insert(Str.begin()+i, '\\'); // Escape character...
- ++i; // don't infinite loop
- break;
- }
- return Str;
- }
+ std::string EscapeString(const std::string &Label);
}
namespace GraphProgram {
CIRCO
};
}
-
+
void DisplayGraph(const sys::Path& Filename, bool wait=true, GraphProgram::Name program = GraphProgram::DOT);
template<typename GraphType>
class GraphWriter {
- std::ostream &O;
+ raw_ostream &O;
const GraphType &G;
- bool ShortNames;
typedef DOTGraphTraits<GraphType> DOTTraits;
typedef GraphTraits<GraphType> GTraits;
typedef typename GTraits::NodeType NodeType;
typedef typename GTraits::nodes_iterator node_iterator;
typedef typename GTraits::ChildIteratorType child_iterator;
+ DOTTraits DTraits;
+
+ // Writes the edge labels of the node to O and returns true if there are any
+ // edge labels not equal to the empty string "".
+ bool getEdgeSourceLabels(raw_ostream &O, NodeType *Node) {
+ child_iterator EI = GTraits::child_begin(Node);
+ child_iterator EE = GTraits::child_end(Node);
+ bool hasEdgeSourceLabels = false;
+
+ for (unsigned i = 0; EI != EE && i != 64; ++EI, ++i) {
+ std::string label = DTraits.getEdgeSourceLabel(Node, EI);
+
+ if (label == "")
+ continue;
+
+ hasEdgeSourceLabels = true;
+
+ if (i)
+ O << "|";
+
+ O << "<s" << i << ">" << DTraits.getEdgeSourceLabel(Node, EI);
+ }
+
+ if (EI != EE && hasEdgeSourceLabels)
+ O << "|<s64>truncated...";
+
+ return hasEdgeSourceLabels;
+ }
+
public:
- GraphWriter(std::ostream &o, const GraphType &g, bool SN) :
- O(o), G(g), ShortNames(SN) {}
+ GraphWriter(raw_ostream &o, const GraphType &g, bool SN) : O(o), G(g) {
+ DTraits = DOTTraits(SN);
+}
void writeHeader(const std::string &Name) {
- std::string GraphName = DOTTraits::getGraphName(G);
+ std::string GraphName = DTraits.getGraphName(G);
if (!Name.empty())
O << "digraph \"" << DOT::EscapeString(Name) << "\" {\n";
else
O << "digraph unnamed {\n";
- if (DOTTraits::renderGraphFromBottomUp())
+ if (DTraits.renderGraphFromBottomUp())
O << "\trankdir=\"BT\";\n";
if (!Name.empty())
O << "\tlabel=\"" << DOT::EscapeString(Name) << "\";\n";
else if (!GraphName.empty())
O << "\tlabel=\"" << DOT::EscapeString(GraphName) << "\";\n";
- O << DOTTraits::getGraphProperties(G);
+ O << DTraits.getGraphProperties(G);
O << "\n";
}
}
void writeNode(NodeType *Node) {
- std::string NodeAttributes = DOTTraits::getNodeAttributes(Node, G);
+ std::string NodeAttributes = DTraits.getNodeAttributes(Node, G);
O << "\tNode" << static_cast<const void*>(Node) << " [shape=record,";
if (!NodeAttributes.empty()) O << NodeAttributes << ",";
O << "label=\"{";
- if (!DOTTraits::renderGraphFromBottomUp()) {
- O << DOT::EscapeString(DOTTraits::getNodeLabel(Node, G, ShortNames));
+ if (!DTraits.renderGraphFromBottomUp()) {
+ O << DOT::EscapeString(DTraits.getNodeLabel(Node, G));
// If we should include the address of the node in the label, do so now.
- if (DOTTraits::hasNodeAddressLabel(Node, G))
+ if (DTraits.hasNodeAddressLabel(Node, G))
O << "|" << (void*)Node;
}
- // Print out the fields of the current node...
- child_iterator EI = GTraits::child_begin(Node);
- child_iterator EE = GTraits::child_end(Node);
- if (EI != EE) {
- if (!DOTTraits::renderGraphFromBottomUp()) O << "|";
- O << "{";
+ std::string edgeSourceLabels;
+ raw_string_ostream EdgeSourceLabels(edgeSourceLabels);
+ bool hasEdgeSourceLabels = getEdgeSourceLabels(EdgeSourceLabels, Node);
- for (unsigned i = 0; EI != EE && i != 64; ++EI, ++i) {
- if (i) O << "|";
- O << "<s" << i << ">" << DOTTraits::getEdgeSourceLabel(Node, EI);
- }
+ if (hasEdgeSourceLabels) {
+ if (!DTraits.renderGraphFromBottomUp()) O << "|";
- if (EI != EE)
- O << "|<s64>truncated...";
- O << "}";
- if (DOTTraits::renderGraphFromBottomUp()) O << "|";
+ O << "{" << EdgeSourceLabels.str() << "}";
+
+ if (DTraits.renderGraphFromBottomUp()) O << "|";
}
- if (DOTTraits::renderGraphFromBottomUp()) {
- O << DOT::EscapeString(DOTTraits::getNodeLabel(Node, G, ShortNames));
+ if (DTraits.renderGraphFromBottomUp()) {
+ O << DOT::EscapeString(DTraits.getNodeLabel(Node, G));
// If we should include the address of the node in the label, do so now.
- if (DOTTraits::hasNodeAddressLabel(Node, G))
+ if (DTraits.hasNodeAddressLabel(Node, G))
O << "|" << (void*)Node;
}
- if (DOTTraits::hasEdgeDestLabels()) {
+ if (DTraits.hasEdgeDestLabels()) {
O << "|{";
- unsigned i = 0, e = DOTTraits::numEdgeDestLabels(Node);
+ unsigned i = 0, e = DTraits.numEdgeDestLabels(Node);
for (; i != e && i != 64; ++i) {
if (i) O << "|";
- O << "<d" << i << ">" << DOTTraits::getEdgeDestLabel(Node, i);
+ O << "<d" << i << ">" << DTraits.getEdgeDestLabel(Node, i);
}
if (i != e)
O << "}\"];\n"; // Finish printing the "node" line
// Output all of the edges now
- EI = GTraits::child_begin(Node);
+ child_iterator EI = GTraits::child_begin(Node);
+ child_iterator EE = GTraits::child_end(Node);
for (unsigned i = 0; EI != EE && i != 64; ++EI, ++i)
writeEdge(Node, i, EI);
for (; EI != EE; ++EI)
void writeEdge(NodeType *Node, unsigned edgeidx, child_iterator EI) {
if (NodeType *TargetNode = *EI) {
int DestPort = -1;
- if (DOTTraits::edgeTargetsEdgeSource(Node, EI)) {
- child_iterator TargetIt = DOTTraits::getEdgeTarget(Node, EI);
+ if (DTraits.edgeTargetsEdgeSource(Node, EI)) {
+ child_iterator TargetIt = DTraits.getEdgeTarget(Node, EI);
// Figure out which edge this targets...
unsigned Offset =
DestPort = static_cast<int>(Offset);
}
+ if (DTraits.getEdgeSourceLabel(Node, EI) == "")
+ edgeidx = -1;
+
emitEdge(static_cast<const void*>(Node), edgeidx,
static_cast<const void*>(TargetNode), DestPort,
- DOTTraits::getEdgeAttributes(Node, EI));
+ DTraits.getEdgeAttributes(Node, EI));
}
}
for (unsigned i = 0; i != NumEdgeSources; ++i) {
if (i) O << "|";
- O << "<g" << i << ">";
+ O << "<s" << i << ">";
if (EdgeSourceLabels) O << (*EdgeSourceLabels)[i];
}
O << "}}";
if (SrcNodePort >= 0)
O << ":s" << SrcNodePort;
O << " -> Node" << DestNodeID;
- if (DestNodePort >= 0)
+ if (DestNodePort >= 0 && DTraits.hasEdgeDestLabels())
O << ":d" << DestNodePort;
if (!Attrs.empty())
};
template<typename GraphType>
-std::ostream &WriteGraph(std::ostream &O, const GraphType &G,
- bool ShortNames = false,
- const std::string &Name = "",
- const std::string &Title = "") {
+raw_ostream &WriteGraph(raw_ostream &O, const GraphType &G,
+ bool ShortNames = false,
+ const std::string &Name = "",
+ const std::string &Title = "") {
// Start the graph emission process...
GraphWriter<GraphType> W(O, G, ShortNames);
}
template<typename GraphType>
-sys::Path WriteGraph(const GraphType &G,
- const std::string& Name,
- bool ShortNames = false,
- const std::string& Title = "") {
+sys::Path WriteGraph(const GraphType &G, const std::string &Name,
+ bool ShortNames = false, const std::string &Title = "") {
std::string ErrMsg;
sys::Path Filename = sys::Path::GetTemporaryDirectory(&ErrMsg);
if (Filename.isEmpty()) {
- cerr << "Error: " << ErrMsg << "\n";
+ errs() << "Error: " << ErrMsg << "\n";
return Filename;
}
Filename.appendComponent(Name + ".dot");
if (Filename.makeUnique(true,&ErrMsg)) {
- cerr << "Error: " << ErrMsg << "\n";
+ errs() << "Error: " << ErrMsg << "\n";
return sys::Path();
}
- cerr << "Writing '" << Filename << "'... ";
+ errs() << "Writing '" << Filename.str() << "'... ";
- std::ofstream O(Filename.c_str());
+ std::string ErrorInfo;
+ raw_fd_ostream O(Filename.c_str(), ErrorInfo);
- if (O.good()) {
+ if (ErrorInfo.empty()) {
WriteGraph(O, G, ShortNames, Name, Title);
- cerr << " done. \n";
-
- O.close();
+ errs() << " done. \n";
} else {
- cerr << "error opening file for writing!\n";
+ errs() << "error opening file '" << Filename.str() << "' for writing!\n";
Filename.clear();
}
/// then cleanup. For use from the debugger.
///
template<typename GraphType>
-void ViewGraph(const GraphType& G,
- const std::string& Name,
- bool ShortNames = false,
- const std::string& Title = "",
+void ViewGraph(const GraphType &G, const std::string &Name,
+ bool ShortNames = false, const std::string &Title = "",
GraphProgram::Name Program = GraphProgram::DOT) {
- sys::Path Filename = WriteGraph(G, Name, ShortNames, Title);
+ sys::Path Filename = WriteGraph(G, Name, ShortNames, Title);
- if (Filename.isEmpty()) {
+ if (Filename.isEmpty())
return;
- }
DisplayGraph(Filename, true, Program);
}
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