summaryrefslogtreecommitdiffstats
path: root/test/Analysis/ctu-main.cpp
blob: a5de18bb3ec6238f097de79f6da89b23b83ed175 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
// RUN: rm -rf %t && mkdir %t
// RUN: mkdir -p %t/ctudir
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu \
// RUN:   -emit-pch -o %t/ctudir/ctu-other.cpp.ast %S/Inputs/ctu-other.cpp
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu \
// RUN:   -emit-pch -o %t/ctudir/ctu-chain.cpp.ast %S/Inputs/ctu-chain.cpp
// RUN: cp %S/Inputs/ctu-other.cpp.externalDefMap.txt %t/ctudir/externalDefMap.txt
// RUN: %clang_analyze_cc1 -triple x86_64-pc-linux-gnu \
// RUN:   -analyzer-checker=core,debug.ExprInspection \
// RUN:   -analyzer-config experimental-enable-naive-ctu-analysis=true \
// RUN:   -analyzer-config ctu-dir=%t/ctudir \
// RUN:   -verify %s
// RUN: %clang_analyze_cc1 -triple x86_64-pc-linux-gnu \
// RUN:   -analyzer-checker=core,debug.ExprInspection \
// RUN:   -analyzer-config experimental-enable-naive-ctu-analysis=true \
// RUN:   -analyzer-config ctu-dir=%t/ctudir \
// RUN:   -analyzer-config display-ctu-progress=true 2>&1 %s | FileCheck %s

// CHECK: CTU loaded AST file: {{.*}}ctu-other.cpp.ast
// CHECK: CTU loaded AST file: {{.*}}ctu-chain.cpp.ast

#include "ctu-hdr.h"

void clang_analyzer_eval(int);

int f(int);
int g(int);
int h(int);

int callback_to_main(int x) { return x + 1; }

namespace myns {
int fns(int x);

namespace embed_ns {
int fens(int x);
}

class embed_cls {
public:
  int fecl(int x);
};
}

class mycls {
public:
  int fcl(int x);
  static int fscl(int x);

  class embed_cls2 {
  public:
    int fecl2(int x);
  };
};

namespace chns {
int chf1(int x);
}

int fun_using_anon_struct(int);
int other_macro_diag(int);

extern const int extInt;
namespace intns {
extern const int extInt;
}
struct S {
  int a;
};
extern const S extS;
extern const int extHere;
const int extHere = 6;
struct A {
  static const int a;
};
struct SC {
  const int a;
};
extern SC extSC;
struct ST {
  static struct SC sc;
};
struct SCNest {
  struct SCN {
    const int a;
  } scn;
};
extern SCNest extSCN;
extern SCNest::SCN extSubSCN;
struct SCC {
  SCC(int c);
  const int a;
};
extern SCC extSCC;
union U {
  const int a;
  const unsigned int b;
};
extern U extU;

int main() {
  clang_analyzer_eval(f(3) == 2); // expected-warning{{TRUE}}
  clang_analyzer_eval(f(4) == 3); // expected-warning{{TRUE}}
  clang_analyzer_eval(f(5) == 3); // expected-warning{{FALSE}}
  clang_analyzer_eval(g(4) == 6); // expected-warning{{TRUE}}
  clang_analyzer_eval(h(2) == 8); // expected-warning{{TRUE}}

  clang_analyzer_eval(myns::fns(2) == 9);                   // expected-warning{{TRUE}}
  clang_analyzer_eval(myns::embed_ns::fens(2) == -1);       // expected-warning{{TRUE}}
  clang_analyzer_eval(mycls().fcl(1) == 6);                 // expected-warning{{TRUE}}
  clang_analyzer_eval(mycls::fscl(1) == 7);                 // expected-warning{{TRUE}}
  clang_analyzer_eval(myns::embed_cls().fecl(1) == -6);     // expected-warning{{TRUE}}
  clang_analyzer_eval(mycls::embed_cls2().fecl2(0) == -11); // expected-warning{{TRUE}}

  clang_analyzer_eval(chns::chf1(4) == 12); // expected-warning{{TRUE}}
  clang_analyzer_eval(fun_using_anon_struct(8) == 8); // expected-warning{{TRUE}}

  clang_analyzer_eval(other_macro_diag(1) == 1); // expected-warning{{TRUE}}
  // expected-warning@Inputs/ctu-other.cpp:80{{REACHABLE}}
  MACRODIAG(); // expected-warning{{REACHABLE}}

  clang_analyzer_eval(extInt == 2); // expected-warning{{TRUE}}
  clang_analyzer_eval(intns::extInt == 3); // expected-warning{{TRUE}}
  clang_analyzer_eval(extS.a == 4); // expected-warning{{TRUE}}
  clang_analyzer_eval(extHere == 6); // expected-warning{{TRUE}}
  clang_analyzer_eval(A::a == 3); // expected-warning{{TRUE}}
  clang_analyzer_eval(extSC.a == 8); // expected-warning{{TRUE}}
  clang_analyzer_eval(ST::sc.a == 2); // expected-warning{{TRUE}}
  // clang_analyzer_eval(extSCN.scn.a == 9); // TODO
  clang_analyzer_eval(extSubSCN.a == 1); // expected-warning{{TRUE}}
  // clang_analyzer_eval(extSCC.a == 7); // TODO
  clang_analyzer_eval(extU.a == 4); // expected-warning{{TRUE}}
}