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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
//===- CallPrinter.cpp - DOT printer for call graph -----------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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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}
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