Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/lib/Analysis/CallPrinter.cpp
Line
Count
Source (jump to first uncovered line)
1
//===- CallPrinter.cpp - DOT printer for call graph -----------------------===//
2
//
3
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4
// See https://llvm.org/LICENSE.txt for license information.
5
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6
//
7
//===----------------------------------------------------------------------===//
8
//
9
// This file defines '-dot-callgraph', which emit a callgraph.<fnname>.dot
10
// containing the call graph of a module.
11
//
12
// There is also a pass available to directly call dotty ('-view-callgraph').
13
//
14
//===----------------------------------------------------------------------===//
15
16
#include "llvm/Analysis/CallPrinter.h"
17
#include "llvm/Analysis/CallGraph.h"
18
#include "llvm/Analysis/DOTGraphTraitsPass.h"
19
20
using namespace llvm;
21
22
namespace llvm {
23
24
template <> struct DOTGraphTraits<CallGraph *> : public DefaultDOTGraphTraits {
25
0
  DOTGraphTraits(bool isSimple = false) : DefaultDOTGraphTraits(isSimple) {}
26
27
0
  static std::string getGraphName(CallGraph *Graph) { return "Call graph"; }
28
29
0
  std::string getNodeLabel(CallGraphNode *Node, CallGraph *Graph) {
30
0
    if (Function *Func = Node->getFunction())
31
0
      return Func->getName();
32
0
33
0
    return "external node";
34
0
  }
35
};
36
37
struct AnalysisCallGraphWrapperPassTraits {
38
0
  static CallGraph *getGraph(CallGraphWrapperPass *P) {
39
0
    return &P->getCallGraph();
40
0
  }
41
};
42
43
} // end llvm namespace
44
45
namespace {
46
47
struct CallGraphViewer
48
    : public DOTGraphTraitsModuleViewer<CallGraphWrapperPass, true, CallGraph *,
49
                                        AnalysisCallGraphWrapperPassTraits> {
50
  static char ID;
51
52
  CallGraphViewer()
53
      : DOTGraphTraitsModuleViewer<CallGraphWrapperPass, true, CallGraph *,
54
                                   AnalysisCallGraphWrapperPassTraits>(
55
0
            "callgraph", ID) {
56
0
    initializeCallGraphViewerPass(*PassRegistry::getPassRegistry());
57
0
  }
58
};
59
60
struct CallGraphDOTPrinter : public DOTGraphTraitsModulePrinter<
61
                              CallGraphWrapperPass, true, CallGraph *,
62
                              AnalysisCallGraphWrapperPassTraits> {
63
  static char ID;
64
65
  CallGraphDOTPrinter()
66
      : DOTGraphTraitsModulePrinter<CallGraphWrapperPass, true, CallGraph *,
67
                                    AnalysisCallGraphWrapperPassTraits>(
68
0
            "callgraph", ID) {
69
0
    initializeCallGraphDOTPrinterPass(*PassRegistry::getPassRegistry());
70
0
  }
71
};
72
73
} // end anonymous namespace
74
75
char CallGraphViewer::ID = 0;
76
INITIALIZE_PASS(CallGraphViewer, "view-callgraph", "View call graph", false,
77
                false)
78
79
char CallGraphDOTPrinter::ID = 0;
80
INITIALIZE_PASS(CallGraphDOTPrinter, "dot-callgraph",
81
                "Print call graph to 'dot' file", false, false)
82
83
// Create methods available outside of this file, to use them
84
// "include/llvm/LinkAllPasses.h". Otherwise the pass would be deleted by
85
// the link time optimization.
86
87
0
ModulePass *llvm::createCallGraphViewerPass() { return new CallGraphViewer(); }
88
89
0
ModulePass *llvm::createCallGraphDOTPrinterPass() {
90
0
  return new CallGraphDOTPrinter();
91
0
}