Coverage Report

Created: 2017-10-03 07:32

/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/lib/Analysis/CallPrinter.cpp
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//===- CallPrinter.cpp - DOT printer for call graph -----------------------===//
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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 '-dot-callgraph', which emit a callgraph.<fnname>.dot
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// containing the call graph of a module.
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//
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// There is also a pass available to directly call dotty ('-view-callgraph').
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/CallPrinter.h"
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#include "llvm/Analysis/CallGraph.h"
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#include "llvm/Analysis/DOTGraphTraitsPass.h"
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using namespace llvm;
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namespace llvm {
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template <> struct DOTGraphTraits<CallGraph *> : public DefaultDOTGraphTraits {
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  DOTGraphTraits(bool isSimple = false) : DefaultDOTGraphTraits(isSimple) {}
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  static std::string getGraphName(CallGraph *Graph) { return "Call graph"; }
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  std::string getNodeLabel(CallGraphNode *Node, CallGraph *Graph) {
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    if (Function *Func = Node->getFunction())
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      return Func->getName();
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    return "external node";
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  }
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};
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struct AnalysisCallGraphWrapperPassTraits {
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  static CallGraph *getGraph(CallGraphWrapperPass *P) {
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    return &P->getCallGraph();
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  }
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};
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} // end llvm namespace
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namespace {
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struct CallGraphViewer
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    : public DOTGraphTraitsModuleViewer<CallGraphWrapperPass, true, CallGraph *,
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                                        AnalysisCallGraphWrapperPassTraits> {
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  static char ID;
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  CallGraphViewer()
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      : DOTGraphTraitsModuleViewer<CallGraphWrapperPass, true, CallGraph *,
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                                   AnalysisCallGraphWrapperPassTraits>(
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            "callgraph", ID) {
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    initializeCallGraphViewerPass(*PassRegistry::getPassRegistry());
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  }
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};
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struct CallGraphDOTPrinter : public DOTGraphTraitsModulePrinter<
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                              CallGraphWrapperPass, true, CallGraph *,
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                              AnalysisCallGraphWrapperPassTraits> {
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  static char ID;
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  CallGraphDOTPrinter()
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      : DOTGraphTraitsModulePrinter<CallGraphWrapperPass, true, CallGraph *,
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                                    AnalysisCallGraphWrapperPassTraits>(
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            "callgraph", ID) {
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    initializeCallGraphDOTPrinterPass(*PassRegistry::getPassRegistry());
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  }
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};
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} // end anonymous namespace
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char CallGraphViewer::ID = 0;
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INITIALIZE_PASS(CallGraphViewer, "view-callgraph", "View call graph", false,
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                false)
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char CallGraphDOTPrinter::ID = 0;
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INITIALIZE_PASS(CallGraphDOTPrinter, "dot-callgraph",
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                "Print call graph to 'dot' file", false, false)
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// Create methods available outside of this file, to use them
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// "include/llvm/LinkAllPasses.h". Otherwise the pass would be deleted by
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// the link time optimization.
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ModulePass *llvm::createCallGraphViewerPass() { return new CallGraphViewer(); }
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ModulePass *llvm::createCallGraphDOTPrinterPass() {
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  return new CallGraphDOTPrinter();
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}