6bb1cadd56
that builds the following additional llvm/clang tools: - bugpoint - llc - lli - llvm-ar - llvm-as - llvm-bcanalyzer - llvm-diff - llvm-dis - llvm-extract - llvm-ld - llvm-link - llvm-mc - llvm-nm - llvm-objdump - llvm-prof - llvm-ranlib - llvm-rtdyld - llvm-stub - macho-dump - opt These tools are mainly useful for people that want to manipulate llvm bitcode (.bc) and llvm assembly language (.ll) files, or want to tinker with llvm and clang themselves. MFC after: 2 weeks
119 lines
3.6 KiB
C++
119 lines
3.6 KiB
C++
//===- GraphPrinters.cpp - DOT printers for various graph types -----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines several printers for various different types of graphs used
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// by the LLVM infrastructure. It uses the generic graph interface to convert
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// the graph into a .dot graph. These graphs can then be processed with the
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// "dot" tool to convert them to postscript or some other suitable format.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/GraphWriter.h"
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#include "llvm/Pass.h"
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#include "llvm/Value.h"
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#include "llvm/Analysis/CallGraph.h"
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#include "llvm/Analysis/Dominators.h"
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#include "llvm/Support/ToolOutputFile.h"
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using namespace llvm;
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template<typename GraphType>
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static void WriteGraphToFile(raw_ostream &O, const std::string &GraphName,
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const GraphType >) {
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std::string Filename = GraphName + ".dot";
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O << "Writing '" << Filename << "'...";
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std::string ErrInfo;
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tool_output_file F(Filename.c_str(), ErrInfo);
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if (ErrInfo.empty()) {
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WriteGraph(F.os(), GT);
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F.os().close();
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if (!F.os().has_error()) {
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O << "\n";
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F.keep();
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return;
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}
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}
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O << " error opening file for writing!\n";
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F.os().clear_error();
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}
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//===----------------------------------------------------------------------===//
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// Call Graph Printer
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//===----------------------------------------------------------------------===//
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namespace llvm {
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template<>
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struct DOTGraphTraits<CallGraph*> : public DefaultDOTGraphTraits {
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DOTGraphTraits (bool isSimple=false) : DefaultDOTGraphTraits(isSimple) {}
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static std::string getGraphName(CallGraph *F) {
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return "Call Graph";
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}
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static std::string getNodeLabel(CallGraphNode *Node, CallGraph *Graph) {
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if (Node->getFunction())
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return ((Value*)Node->getFunction())->getName();
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return "external node";
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}
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};
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}
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namespace {
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struct CallGraphPrinter : public ModulePass {
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static char ID; // Pass ID, replacement for typeid
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CallGraphPrinter() : ModulePass(ID) {}
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virtual bool runOnModule(Module &M) {
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WriteGraphToFile(llvm::errs(), "callgraph", &getAnalysis<CallGraph>());
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return false;
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}
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void print(raw_ostream &OS, const llvm::Module*) const {}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequired<CallGraph>();
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AU.setPreservesAll();
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}
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};
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}
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char CallGraphPrinter::ID = 0;
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static RegisterPass<CallGraphPrinter> P2("dot-callgraph",
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"Print Call Graph to 'dot' file");
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//===----------------------------------------------------------------------===//
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// DomInfoPrinter Pass
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//===----------------------------------------------------------------------===//
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namespace {
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class DomInfoPrinter : public FunctionPass {
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public:
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static char ID; // Pass identification, replacement for typeid
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DomInfoPrinter() : FunctionPass(ID) {}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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AU.addRequired<DominatorTree>();
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}
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virtual bool runOnFunction(Function &F) {
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getAnalysis<DominatorTree>().dump();
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return false;
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}
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};
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}
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char DomInfoPrinter::ID = 0;
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static RegisterPass<DomInfoPrinter>
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DIP("print-dom-info", "Dominator Info Printer", true, true);
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