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a125cacf7d
-dot-callgraph similarly follows a standard module pass pattern. Patch by Speziale Ettore! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172220 91177308-0d34-0410-b5e6-96231b3b80d8
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
//===- 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/CallGraph.h"
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#include "llvm/Analysis/CallPrinter.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<>
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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 *Graph) {
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return "Call graph";
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}
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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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} // end llvm namespace
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namespace {
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struct CallGraphViewer
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: public DOTGraphTraitsModuleViewer<CallGraph, true> {
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static char ID;
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CallGraphViewer()
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: DOTGraphTraitsModuleViewer<CallGraph, true>("callgraph", ID) {
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initializeCallGraphViewerPass(*PassRegistry::getPassRegistry());
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}
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};
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struct CallGraphPrinter
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: public DOTGraphTraitsModulePrinter<CallGraph, true> {
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static char ID;
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CallGraphPrinter()
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: DOTGraphTraitsModulePrinter<CallGraph, true>("callgraph", ID) {
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initializeCallGraphPrinterPass(*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",
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"View call graph",
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false, false)
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char CallGraphPrinter::ID = 0;
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INITIALIZE_PASS(CallGraphPrinter, "dot-callgraph",
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"Print call graph to 'dot' file",
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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() {
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return new CallGraphViewer();
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}
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ModulePass *llvm::createCallGraphPrinterPass() {
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return new CallGraphPrinter();
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}
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