1 // RUN: %clang_analyze_cc1 -std=c++98 -fcxx-exceptions -fexceptions -analyzer-checker=debug.DumpCFG -analyzer-config cfg-rich-constructors=false %s > %t 2>&1
2 // RUN: FileCheck --input-file=%t -check-prefixes=CHECK,CXX98,WARNINGS,CXX98-WARNINGS %s
3 // RUN: %clang_analyze_cc1 -std=c++98 -fcxx-exceptions -fexceptions -analyzer-checker=debug.DumpCFG -analyzer-config cfg-rich-constructors=true %s > %t 2>&1
4 // RUN: FileCheck --input-file=%t -check-prefixes=CHECK,CXX98,ANALYZER,CXX98-ANALYZER %s
5 // RUN: %clang_analyze_cc1 -std=c++11 -fcxx-exceptions -fexceptions -analyzer-checker=debug.DumpCFG -analyzer-config cfg-rich-constructors=false %s > %t 2>&1
6 // RUN: FileCheck --input-file=%t -check-prefixes=CHECK,CXX11,WARNINGS,CXX11-WARNINGS %s
7 // RUN: %clang_analyze_cc1 -std=c++11 -fcxx-exceptions -fexceptions -analyzer-checker=debug.DumpCFG -analyzer-config cfg-rich-constructors=true %s > %t 2>&1
8 // RUN: FileCheck --input-file=%t -check-prefixes=CHECK,CXX11,ANALYZER,CXX11-ANALYZER %s
9 
10 // This file tests how we construct two different flavors of the Clang CFG -
11 // the CFG used by the Sema analysis-based warnings and the CFG used by the
12 // static analyzer. The difference in the behavior is checked via FileCheck
13 // prefixes (WARNINGS and ANALYZER respectively). When introducing new analyzer
14 // flags, no new run lines should be added - just these flags would go to the
15 // respective line depending on where is it turned on and where is it turned
16 // off. Feel free to add tests that test only one of the CFG flavors if you're
17 // not sure how the other flavor is supposed to work in your case.
18 
19 class A {
20 public:
21   int x;
22 
23 // CHECK:      [B1 (ENTRY)]
24 // CHECK-NEXT:   Succs (1): B0
25 // CHECK:      [B0 (EXIT)]
26 // CHECK-NEXT:   Preds (1): B1
A()27   A() {}
28 
29 // CHECK:      [B1 (ENTRY)]
30 // CHECK-NEXT:   Succs (1): B0
31 // CHECK:      [B0 (EXIT)]
32 // CHECK-NEXT:   Preds (1): B1
~A()33   ~A() {}
34 
35 // CHECK:      [B2 (ENTRY)]
36 // CHECK-NEXT:   Succs (1): B1
37 // CHECK:      [B1]
38 // CHECK-NEXT:   1: 1
39 // CHECK-NEXT:   2: return [B1.1];
40 // CHECK-NEXT:   Preds (1): B2
41 // CHECK-NEXT:   Succs (1): B0
42 // CHECK:      [B0 (EXIT)]
43 // CHECK-NEXT:   Preds (1): B1
operator int() const44   operator int() const { return 1; }
45 };
46 
47 extern const bool UV;
48 
49 // CHECK:      [B2 (ENTRY)]
50 // CHECK-NEXT:   Succs (1): B1
51 // CHECK:      [B1]
52 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
53 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B1.2], class A)
54 // CHECK-NEXT:   2: A a;
55 // CHECK-NEXT:   3: a
56 // CHECK-NEXT:   4: [B1.3] (ImplicitCastExpr, NoOp, const class A)
57 // CHECK-NEXT:   5: const A &b = a;
58 // WARNINGS-NEXT:   6: A() (CXXConstructExpr, class A)
59 // ANALYZER-NEXT:   6: A() (CXXConstructExpr, [B1.9], class A)
60 // CHECK-NEXT:   7: [B1.6] (BindTemporary)
61 // CHECK-NEXT:   8: [B1.7] (ImplicitCastExpr, NoOp, const class A)
62 // CHECK-NEXT:   9: [B1.8]
63 // CHECK:       10: const A &c = A();
64 // CHECK:       11: [B1.10].~A() (Implicit destructor)
65 // CHECK:       12: [B1.2].~A() (Implicit destructor)
66 // CHECK-NEXT:   Preds (1): B2
67 // CHECK-NEXT:   Succs (1): B0
68 // CHECK:      [B0 (EXIT)]
69 // CHECK-NEXT:   Preds (1): B1
test_const_ref()70 void test_const_ref() {
71   A a;
72   const A& b = a;
73   const A& c = A();
74 }
75 
76 // CHECK:      [B2 (ENTRY)]
77 // CHECK-NEXT:   Succs (1): B1
78 // CHECK:      [B1]
79 // WARNINGS-NEXT:   1: A() (CXXConstructExpr, class A)
80 // CXX98-ANALYZER-NEXT:   1: A() (CXXConstructExpr, [B1.2], class A)
81 // CXX11-ANALYZER-NEXT:   1: A() (CXXConstructExpr, [B1.3], class A)
82 // CHECK-NEXT:   2: [B1.1] (BindTemporary)
83 // CXX98-NEXT:   3: [B1.2].x
84 // CXX98-NEXT:   4: [B1.3]
85 // CXX98-NEXT:   5: const int &x = A().x;
86 // CXX98-NEXT:   6: [B1.5].~A() (Implicit destructor)
87 // CXX11-NEXT:   3: [B1.2]
88 // CXX11-NEXT:   4: [B1.3].x
89 // CXX11-NEXT:   5: [B1.4] (ImplicitCastExpr, NoOp, const int)
90 // CXX11-NEXT:   6: const int &x = A().x;
91 // CXX11-NEXT:   7: [B1.6].~A() (Implicit destructor)
92 // CHECK-NEXT:   Preds (1): B2
93 // CHECK-NEXT:   Succs (1): B0
94 // CHECK:      [B0 (EXIT)]
95 // CHECK-NEXT:   Preds (1): B1
test_const_ref_to_field()96 void test_const_ref_to_field() {
97   const int &x = A().x;
98 }
99 
100 // CHECK:        [B2 (ENTRY)]
101 // CHECK-NEXT:     Succs (1): B1
102 // CHECK:        [B1]
103 // WARNINGS-NEXT:     1: A() (CXXConstructExpr, class A)
104 // CXX98-ANALYZER-NEXT:     1: A() (CXXConstructExpr, [B1.2], class A)
105 // CXX11-ANALYZER-NEXT:     1: A() (CXXConstructExpr, [B1.3], class A)
106 // CHECK-NEXT:     2: [B1.1] (BindTemporary)
107 // CXX98-NEXT:     3: A::x
108 // CXX98-NEXT:     4: &[B1.3]
109 // CXX98-NEXT:     5: [B1.2] .* [B1.4]
110 // CXX98-NEXT:     6: [B1.5]
111 // CXX98-NEXT:     7: const int &x = A() .* &A::x;
112 // CXX98-NEXT:     8: [B1.7].~A() (Implicit destructor)
113 // CXX11-NEXT:     3: [B1.2]
114 // CXX11-NEXT:     4: A::x
115 // CXX11-NEXT:     5: &[B1.4]
116 // CXX11-NEXT:     6: [B1.3] .* [B1.5]
117 // CXX11-NEXT:     7: [B1.6] (ImplicitCastExpr, NoOp, const int)
118 // CXX11-NEXT:     8: const int &x = A() .* &A::x;
119 // CXX11-NEXT:     9: [B1.8].~A() (Implicit destructor)
120 // CHECK-NEXT:     Preds (1): B2
121 // CHECK-NEXT:     Succs (1): B0
122 // CHECK:        [B0 (EXIT)]
123 // CHECK-NEXT:     Preds (1): B1
test_pointer_to_member()124 void test_pointer_to_member() {
125   const int &x = A().*&A::x;
126 }
127 
128 // FIXME: There should be automatic destructors at the end of scope.
129 // CHECK:        [B2 (ENTRY)]
130 // CHECK-NEXT:     Succs (1): B1
131 // CHECK:        [B1]
132 // WARNINGS-NEXT:     1: A() (CXXConstructExpr, class A)
133 // ANALYZER-NEXT:     1: A() (CXXConstructExpr, [B1.4], class A)
134 // CHECK-NEXT:     2: [B1.1] (BindTemporary)
135 // CHECK-NEXT:     3: [B1.2] (ImplicitCastExpr, NoOp, const class A)
136 // CHECK-NEXT:     4: [B1.3]
137 // CHECK-NEXT:     5: {[B1.4]}
138 // CHECK-NEXT:     6: B b = {A()};
139 // WARNINGS-NEXT:     7: A() (CXXConstructExpr, class A)
140 // ANALYZER-NEXT:     7: A() (CXXConstructExpr, [B1.10], class A)
141 // CHECK-NEXT:     8: [B1.7] (BindTemporary)
142 // CHECK-NEXT:     9: [B1.8] (ImplicitCastExpr, NoOp, const class A)
143 // CHECK-NEXT:    10: [B1.9]
144 // CHECK-NEXT:    11: {[B1.10]}
145 // WARNINGS-NEXT:    12: A() (CXXConstructExpr, class A)
146 // ANALYZER-NEXT:    12: A() (CXXConstructExpr, [B1.15], class A)
147 // CHECK-NEXT:    13: [B1.12] (BindTemporary)
148 // CHECK-NEXT:    14: [B1.13] (ImplicitCastExpr, NoOp, const class A)
149 // CHECK-NEXT:    15: [B1.14]
150 // CHECK-NEXT:    16: {[B1.15]}
151 // CHECK-NEXT:    17: {[B1.10], [B1.15]}
152 // CHECK-NEXT:    18: B bb[2] = {A(), A()};
153 // CHECK-NEXT:     Preds (1): B2
154 // CHECK-NEXT:     Succs (1): B0
155 // CHECK:        [B0 (EXIT)]
156 // CHECK-NEXT:     Preds (1): B1
test_aggregate_lifetime_extension()157 void test_aggregate_lifetime_extension() {
158   struct B {
159     const A &x;
160   };
161 
162   B b = {A()};
163   B bb[2] = {A(), A()};
164 }
165 
166 // In C++98 such class 'C' will not be an aggregate.
167 #if __cplusplus >= 201103L
168 // FIXME: There should be automatic destructors at the end of the scope.
169 // CXX11:        [B2 (ENTRY)]
170 // CXX11-NEXT:     Succs (1): B1
171 // CXX11:        [B1]
172 // CXX11-WARNINGS-NEXT:     1: A() (CXXConstructExpr, class A)
173 // CXX11-ANALYZER-NEXT:     1: A() (CXXConstructExpr, [B1.2], [B1.4], class A)
174 // CXX11-NEXT:     2: [B1.1] (BindTemporary)
175 // CXX11-NEXT:     3: [B1.2] (ImplicitCastExpr, NoOp, const class A)
176 // CXX11-NEXT:     4: [B1.3]
177 // CXX11-NEXT:     5: [B1.4] (CXXConstructExpr, const class A)
178 // CXX11-WARNINGS-NEXT:     6: A() (CXXConstructExpr, class A)
179 // CXX11-ANALYZER-NEXT:     6: A() (CXXConstructExpr, [B1.7], [B1.9], class A)
180 // CXX11-NEXT:     7: [B1.6] (BindTemporary)
181 // CXX11-NEXT:     8: [B1.7] (ImplicitCastExpr, NoOp, const class A)
182 // CXX11-NEXT:     9: [B1.8]
183 // CXX11-NEXT:    10: [B1.9] (CXXConstructExpr, const class A)
184 // FIXME: Why does it look as if the initializer list consumes uncopied objects?
185 // CXX11-NEXT:    11: {[B1.2], [B1.7]}
186 // CXX11-NEXT:    12: [B1.11] (BindTemporary)
187 // CXX11-NEXT:    13: [B1.12]
188 // CXX11-NEXT:    14: {[B1.13]}
189 // Double curly braces trigger regexps, escape as per FileCheck manual.
190 // CXX11-NEXT:    15: C c = {{[{][{]}}A(), A(){{[}][}]}};
191 // CXX11-NEXT:    16: ~A() (Temporary object destructor)
192 // CXX11-NEXT:    17: ~A() (Temporary object destructor)
193 // CXX11-WARNINGS-NEXT:    18: A() (CXXConstructExpr, class A)
194 // CXX11-ANALYZER-NEXT:    18: A() (CXXConstructExpr, [B1.19], [B1.21], class A)
195 // CXX11-NEXT:    19: [B1.18] (BindTemporary)
196 // CXX11-NEXT:    20: [B1.19] (ImplicitCastExpr, NoOp, const class A)
197 // CXX11-NEXT:    21: [B1.20]
198 // CXX11-NEXT:    22: [B1.21] (CXXConstructExpr, const class A)
199 // CXX11-WARNINGS-NEXT:    23: A() (CXXConstructExpr, class A)
200 // CXX11-ANALYZER-NEXT:    23: A() (CXXConstructExpr, [B1.24], [B1.26], class A)
201 // CXX11-NEXT:    24: [B1.23] (BindTemporary)
202 // CXX11-NEXT:    25: [B1.24] (ImplicitCastExpr, NoOp, const class A)
203 // CXX11-NEXT:    26: [B1.25]
204 // CXX11-NEXT:    27: [B1.26] (CXXConstructExpr, const class A)
205 // FIXME: Why does it look as if the initializer list consumes uncopied objects?
206 // CXX11-NEXT:    28: {[B1.19], [B1.24]}
207 // CXX11-NEXT:    29: [B1.28] (BindTemporary)
208 // CXX11-NEXT:    30: [B1.29]
209 // CXX11-NEXT:    31: {[B1.30]}
210 // CXX11-WARNINGS-NEXT:    32: A() (CXXConstructExpr, class A)
211 // CXX11-ANALYZER-NEXT:    32: A() (CXXConstructExpr, [B1.33], [B1.35], class A)
212 // CXX11-NEXT:    33: [B1.32] (BindTemporary)
213 // CXX11-NEXT:    34: [B1.33] (ImplicitCastExpr, NoOp, const class A)
214 // CXX11-NEXT:    35: [B1.34]
215 // CXX11-NEXT:    36: [B1.35] (CXXConstructExpr, const class A)
216 // CXX11-WARNINGS-NEXT:    37: A() (CXXConstructExpr, class A)
217 // CXX11-ANALYZER-NEXT:    37: A() (CXXConstructExpr, [B1.38], [B1.40], class A)
218 // CXX11-NEXT:    38: [B1.37] (BindTemporary)
219 // CXX11-NEXT:    39: [B1.38] (ImplicitCastExpr, NoOp, const class A)
220 // CXX11-NEXT:    40: [B1.39]
221 // CXX11-NEXT:    41: [B1.40] (CXXConstructExpr, const class A)
222 // FIXME: Why does it look as if the initializer list consumes uncopied objects?
223 // CXX11-NEXT:    42: {[B1.33], [B1.38]}
224 // CXX11-NEXT:    43: [B1.42] (BindTemporary)
225 // CXX11-NEXT:    44: [B1.43]
226 // CXX11-NEXT:    45: {[B1.44]}
227 // Double curly braces trigger regexps, escape as per FileCheck manual.
228 // CXX11-NEXT:    46: {{[{][{]}}[B1.30]}, {[B1.44]{{[}][}]}}
229 // Double curly braces trigger regexps, escape as per FileCheck manual.
230 // CXX11-NEXT:    47: C cc[2] = {{[{][{][{]}}A(), A(){{[}][}]}}, {{[{][{]}}A(), A(){{[}][}][}]}};
231 // CXX11-NEXT:    48: ~A() (Temporary object destructor)
232 // CXX11-NEXT:    49: ~A() (Temporary object destructor)
233 // CXX11-NEXT:    50: ~A() (Temporary object destructor)
234 // CXX11-NEXT:    51: ~A() (Temporary object destructor)
235 // CXX11-NEXT:     Preds (1): B2
236 // CXX11-NEXT:     Succs (1): B0
237 // CXX11:        [B0 (EXIT)]
238 // CXX11-NEXT:     Preds (1): B1
test_aggregate_array_lifetime_extension()239 void test_aggregate_array_lifetime_extension() {
240   struct C {
241     const A (&z)[2];
242   };
243 
244   // Until C++17 there are elidable copies here, so there should be 9 temporary
245   // destructors of A()s. There are no destructors of 'c' and 'cc' because this
246   // aggregate has no destructor. Instead, arrays are lifetime-extended,
247   // and copies of A()s within them need to be destroyed via automatic
248   // destructors.
249   C c = {{A(), A()}};
250   C cc[2] = {{{A(), A()}}, {{A(), A()}}};
251 }
252 #endif
253 
254 // CHECK:        [B2 (ENTRY)]
255 // CHECK-NEXT:     Succs (1): B1
256 // CHECK:        [B1]
257 // WARNINGS-NEXT:     1: A() (CXXConstructExpr, class A)
258 // ANALYZER-NEXT:     1: A() (CXXConstructExpr, [B1.2], [B1.4], class A)
259 // CHECK-NEXT:     2: [B1.1] (BindTemporary)
260 // CHECK-NEXT:     3: [B1.2] (ImplicitCastExpr, NoOp, const class A)
261 // CHECK-NEXT:     4: [B1.3]
262 // CHECK-NEXT:     5: [B1.4] (CXXConstructExpr, class A)
263 // WARNINGS-NEXT:     6: A() (CXXConstructExpr, class A)
264 // ANALYZER-NEXT:     6: A() (CXXConstructExpr, [B1.7], [B1.9], class A)
265 // CHECK-NEXT:     7: [B1.6] (BindTemporary)
266 // CHECK-NEXT:     8: [B1.7] (ImplicitCastExpr, NoOp, const class A)
267 // CHECK-NEXT:     9: [B1.8]
268 // CHECK-NEXT:    10: [B1.9] (CXXConstructExpr, class A)
269 // WARNINGS-NEXT:    11: A() (CXXConstructExpr, class A)
270 // ANALYZER-NEXT:    11: A() (CXXConstructExpr, [B1.12], [B1.14], class A)
271 // CHECK-NEXT:    12: [B1.11] (BindTemporary)
272 // CHECK-NEXT:    13: [B1.12] (ImplicitCastExpr, NoOp, const class A)
273 // CHECK-NEXT:    14: [B1.13]
274 // CHECK-NEXT:    15: [B1.14] (CXXConstructExpr, class A)
275 // FIXME: Why does it look as if the initializer list consumes uncopied objects?
276 // CHECK-NEXT:    16: {[B1.7], [B1.12]}
277 // FIXME: Why does it look as if the initializer list consumes uncopied objects?
278 // CHECK-NEXT:    17: {[B1.2], {[B1.7], [B1.12]}}
279 // CHECK-NEXT:    18: D d = {A(), {A(), A()}};
280 // CHECK-NEXT:    19: ~A() (Temporary object destructor)
281 // CHECK-NEXT:    20: ~A() (Temporary object destructor)
282 // CHECK-NEXT:    21: ~A() (Temporary object destructor)
283 // WARNINGS-NEXT:    22: A() (CXXConstructExpr, class A)
284 // ANALYZER-NEXT:    22: A() (CXXConstructExpr, [B1.23], [B1.25], class A)
285 // CHECK-NEXT:    23: [B1.22] (BindTemporary)
286 // CHECK-NEXT:    24: [B1.23] (ImplicitCastExpr, NoOp, const class A)
287 // CHECK-NEXT:    25: [B1.24]
288 // CHECK-NEXT:    26: [B1.25] (CXXConstructExpr, class A)
289 // WARNINGS-NEXT:    27: A() (CXXConstructExpr, class A)
290 // ANALYZER-NEXT:    27: A() (CXXConstructExpr, [B1.28], [B1.30], class A)
291 // CHECK-NEXT:    28: [B1.27] (BindTemporary)
292 // CHECK-NEXT:    29: [B1.28] (ImplicitCastExpr, NoOp, const class A)
293 // CHECK-NEXT:    30: [B1.29]
294 // CHECK-NEXT:    31: [B1.30] (CXXConstructExpr, class A)
295 // WARNINGS-NEXT:    32: A() (CXXConstructExpr, class A)
296 // ANALYZER-NEXT:    32: A() (CXXConstructExpr, [B1.33], [B1.35], class A)
297 // CHECK-NEXT:    33: [B1.32] (BindTemporary)
298 // CHECK-NEXT:    34: [B1.33] (ImplicitCastExpr, NoOp, const class A)
299 // CHECK-NEXT:    35: [B1.34]
300 // CHECK-NEXT:    36: [B1.35] (CXXConstructExpr, class A)
301 // FIXME: Why does it look as if the initializer list consumes uncopied objects?
302 // CHECK-NEXT:    37: {[B1.28], [B1.33]}
303 // FIXME: Why does it look as if the initializer list consumes uncopied objects?
304 // CHECK-NEXT:    38: {[B1.23], {[B1.28], [B1.33]}}
305 // WARNINGS-NEXT:    39: A() (CXXConstructExpr, class A)
306 // ANALYZER-NEXT:    39: A() (CXXConstructExpr, [B1.40], [B1.42], class A)
307 // CHECK-NEXT:    40: [B1.39] (BindTemporary)
308 // CHECK-NEXT:    41: [B1.40] (ImplicitCastExpr, NoOp, const class A)
309 // CHECK-NEXT:    42: [B1.41]
310 // CHECK-NEXT:    43: [B1.42] (CXXConstructExpr, class A)
311 // WARNINGS-NEXT:    44: A() (CXXConstructExpr, class A)
312 // ANALYZER-NEXT:    44: A() (CXXConstructExpr, [B1.45], [B1.47], class A)
313 // CHECK-NEXT:    45: [B1.44] (BindTemporary)
314 // CHECK-NEXT:    46: [B1.45] (ImplicitCastExpr, NoOp, const class A)
315 // CHECK-NEXT:    47: [B1.46]
316 // CHECK-NEXT:    48: [B1.47] (CXXConstructExpr, class A)
317 // WARNINGS-NEXT:    49: A() (CXXConstructExpr, class A)
318 // ANALYZER-NEXT:    49: A() (CXXConstructExpr, [B1.50], [B1.52], class A)
319 // CHECK-NEXT:    50: [B1.49] (BindTemporary)
320 // CHECK-NEXT:    51: [B1.50] (ImplicitCastExpr, NoOp, const class A)
321 // CHECK-NEXT:    52: [B1.51]
322 // CHECK-NEXT:    53: [B1.52] (CXXConstructExpr, class A)
323 // FIXME: Why does it look as if the initializer list consumes uncopied objects?
324 // CHECK-NEXT:    54: {[B1.45], [B1.50]}
325 // FIXME: Why does it look as if the initializer list consumes uncopied objects?
326 // CHECK-NEXT:    55: {[B1.40], {[B1.45], [B1.50]}}
327 // Double curly braces trigger regexps, escape as per FileCheck manual.
328 // CHECK-NEXT:    56: {{[{][{]}}[B1.23], {[B1.28], [B1.33]{{[}][}]}}, {[B1.40], {[B1.45], [B1.50]{{[}][}][}]}}
329 // Double curly braces trigger regexps, escape as per FileCheck manual.
330 // CHECK-NEXT:    57: D dd[2] = {{[{][{]}}A(), {A(), A(){{[}][}]}}, {A(), {A(), A(){{[}][}][}]}};
331 // CHECK-NEXT:    58: ~A() (Temporary object destructor)
332 // CHECK-NEXT:    59: ~A() (Temporary object destructor)
333 // CHECK-NEXT:    60: ~A() (Temporary object destructor)
334 // CHECK-NEXT:    61: ~A() (Temporary object destructor)
335 // CHECK-NEXT:    62: ~A() (Temporary object destructor)
336 // CHECK-NEXT:    63: ~A() (Temporary object destructor)
337 // CHECK-NEXT:    64: [B1.57].~D [2]() (Implicit destructor)
338 // CHECK-NEXT:    65: [B1.18].~D() (Implicit destructor)
339 // CHECK-NEXT:     Preds (1): B2
340 // CHECK-NEXT:     Succs (1): B0
341 // CHECK:        [B0 (EXIT)]
342 // CHECK-NEXT:     Preds (1): B1
test_aggregate_with_nontrivial_own_destructor()343 void test_aggregate_with_nontrivial_own_destructor() {
344   struct D {
345     A y;
346     A w[2];
347   };
348 
349   // Until C++17 there are elidable copies here, so there should be 9 temporary
350   // destructors of A()s. Destructors of 'd' and 'dd' should implicitly
351   // take care of the copies, so there should not be automatic destructors
352   // for copies of A()s.
353   D d = {A(), {A(), A()}};
354   D dd[2] = {{A(), {A(), A()}}, {A(), {A(), A()}}};
355 }
356 
357 // CHECK:      [B2 (ENTRY)]
358 // CHECK-NEXT:   Succs (1): B1
359 // CHECK:      [B1]
360 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A [2])
361 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B1.2], class A [2])
362 // CHECK-NEXT:   2: A a[2];
363 // WARNINGS-NEXT:   3:  (CXXConstructExpr, class A [0])
364 // ANALYZER-NEXT:   3:  (CXXConstructExpr, [B1.4], class A [0])
365 // CHECK-NEXT:   4: A b[0];
366 // CHECK-NEXT:   5: [B1.2].~A [2]() (Implicit destructor)
367 // CHECK-NEXT:   Preds (1): B2
368 // CHECK-NEXT:   Succs (1): B0
369 // CHECK:      [B0 (EXIT)]
370 // CHECK-NEXT:   Preds (1): B1
test_array()371 void test_array() {
372   A a[2];
373   A b[0];
374 }
375 
376 // CHECK:      [B2 (ENTRY)]
377 // CHECK-NEXT:   Succs (1): B1
378 // CHECK:      [B1]
379 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
380 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B1.2], class A)
381 // CHECK-NEXT:   2: A a;
382 // WARNINGS-NEXT:   3:  (CXXConstructExpr, class A)
383 // ANALYZER-NEXT:   3:  (CXXConstructExpr, [B1.4], class A)
384 // CHECK-NEXT:   4: A c;
385 // WARNINGS-NEXT:   5:  (CXXConstructExpr, class A)
386 // ANALYZER-NEXT:   5:  (CXXConstructExpr, [B1.6], class A)
387 // CHECK-NEXT:   6: A d;
388 // CHECK-NEXT:   7: [B1.6].~A() (Implicit destructor)
389 // CHECK-NEXT:   8: [B1.4].~A() (Implicit destructor)
390 // WARNINGS-NEXT:   9:  (CXXConstructExpr, class A)
391 // ANALYZER-NEXT:   9:  (CXXConstructExpr, [B1.10], class A)
392 // CHECK:       10: A b;
393 // CHECK:       11: [B1.10].~A() (Implicit destructor)
394 // CHECK:       12: [B1.2].~A() (Implicit destructor)
395 // CHECK-NEXT:   Preds (1): B2
396 // CHECK-NEXT:   Succs (1): B0
397 // CHECK:      [B0 (EXIT)]
398 // CHECK-NEXT:   Preds (1): B1
test_scope()399 void test_scope() {
400   A a;
401   { A c;
402     A d;
403   }
404   A b;
405 }
406 
407 // CHECK:      [B4 (ENTRY)]
408 // CHECK-NEXT:   Succs (1): B3
409 // CHECK:      [B1]
410 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
411 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B1.2], class A)
412 // CHECK-NEXT:   2: A c;
413 // CHECK-NEXT:   3: [B1.2].~A() (Implicit destructor)
414 // CHECK-NEXT:   4: [B3.4].~A() (Implicit destructor)
415 // CHECK-NEXT:   5: [B3.2].~A() (Implicit destructor)
416 // CHECK-NEXT:   Preds (1): B3
417 // CHECK-NEXT:   Succs (1): B0
418 // CHECK:      [B2]
419 // CHECK-NEXT:   1: return;
420 // CHECK-NEXT:   2: [B3.4].~A() (Implicit destructor)
421 // CHECK-NEXT:   3: [B3.2].~A() (Implicit destructor)
422 // CHECK-NEXT:   Preds (1): B3
423 // CHECK-NEXT:   Succs (1): B0
424 // CHECK:      [B3]
425 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
426 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B3.2], class A)
427 // CHECK-NEXT:   2: A a;
428 // WARNINGS-NEXT:   3:  (CXXConstructExpr, class A)
429 // ANALYZER-NEXT:   3:  (CXXConstructExpr, [B3.4], class A)
430 // CHECK-NEXT:   4: A b;
431 // CHECK-NEXT:   5: UV
432 // CHECK-NEXT:   6: [B3.5] (ImplicitCastExpr, LValueToRValue, _Bool)
433 // CHECK-NEXT:   T: if [B3.6]
434 // CHECK-NEXT:   Preds (1): B4
435 // CHECK-NEXT:   Succs (2): B2 B1
436 // CHECK:      [B0 (EXIT)]
437 // CHECK-NEXT:   Preds (2): B1 B2
test_return()438 void test_return() {
439   A a;
440   A b;
441   if (UV) return;
442   A c;
443 }
444 
445 // CHECK:      [B8 (ENTRY)]
446 // CHECK-NEXT:   Succs (1): B7
447 // CHECK:      [B1]
448 // CHECK:       l1:
449 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
450 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B1.2], class A)
451 // CHECK-NEXT:   2: A c;
452 // CHECK-NEXT:   3: [B1.2].~A() (Implicit destructor)
453 // CHECK-NEXT:   4: [B6.2].~A() (Implicit destructor)
454 // CHECK-NEXT:   5: [B7.2].~A() (Implicit destructor)
455 // CHECK-NEXT:   Preds (2): B2 B3
456 // CHECK-NEXT:   Succs (1): B0
457 // CHECK:      [B2]
458 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
459 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B2.2], class A)
460 // CHECK-NEXT:   2: A b;
461 // CHECK-NEXT:   3: [B2.2].~A() (Implicit destructor)
462 // CHECK-NEXT:   4: [B6.4].~A() (Implicit destructor)
463 // CHECK-NEXT:   Preds (1): B4
464 // CHECK-NEXT:   Succs (1): B1
465 // CHECK:      [B3]
466 // CHECK-NEXT:   1: [B6.4].~A() (Implicit destructor)
467 // CHECK-NEXT:   T: goto l1;
468 // CHECK:        Preds (1): B4
469 // CHECK-NEXT:   Succs (1): B1
470 // CHECK:      [B4]
471 // CHECK-NEXT:   1: UV
472 // CHECK-NEXT:   2: [B4.1] (ImplicitCastExpr, LValueToRValue, _Bool)
473 // CHECK-NEXT:   T: if [B4.2]
474 // CHECK-NEXT:   Preds (1): B6
475 // CHECK-NEXT:   Succs (2): B3 B2
476 // CHECK:      [B5]
477 // CHECK-NEXT:   1: [B6.4].~A() (Implicit destructor)
478 // CHECK-NEXT:   2: [B6.2].~A() (Implicit destructor)
479 // CHECK-NEXT:   T: goto l0;
480 // CHECK:        Preds (1): B6
481 // CHECK-NEXT:   Succs (1): B6
482 // CHECK:      [B6]
483 // CHECK:       l0:
484 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
485 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B6.2], class A)
486 // CHECK-NEXT:   2: A b;
487 // WARNINGS-NEXT:   3:  (CXXConstructExpr, class A)
488 // ANALYZER-NEXT:   3:  (CXXConstructExpr, [B6.4], class A)
489 // CHECK-NEXT:   4: A a;
490 // CHECK-NEXT:   5: UV
491 // CHECK-NEXT:   6: [B6.5] (ImplicitCastExpr, LValueToRValue, _Bool)
492 // CHECK-NEXT:   T: if [B6.6]
493 // CHECK-NEXT:   Preds (2): B7 B5
494 // CHECK-NEXT:   Succs (2): B5 B4
495 // CHECK:      [B7]
496 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
497 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B7.2], class A)
498 // CHECK-NEXT:   2: A a;
499 // CHECK-NEXT:   Preds (1): B8
500 // CHECK-NEXT:   Succs (1): B6
501 // CHECK:      [B0 (EXIT)]
502 // CHECK-NEXT:   Preds (1): B1
test_goto()503 void test_goto() {
504   A a;
505 l0:
506   A b;
507   { A a;
508     if (UV) goto l0;
509     if (UV) goto l1;
510     A b;
511   }
512 l1:
513   A c;
514 }
515 
516 // CHECK:      [B5 (ENTRY)]
517 // CHECK-NEXT:   Succs (1): B4
518 // CHECK:      [B1]
519 // CHECK-NEXT:   1: [B4.6].~A() (Implicit destructor)
520 // CHECK-NEXT:   2: [B4.2].~A() (Implicit destructor)
521 // CHECK-NEXT:   Preds (2): B2 B3
522 // CHECK-NEXT:   Succs (1): B0
523 // CHECK:      [B2]
524 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
525 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B2.2], class A)
526 // CHECK-NEXT:   2: A c;
527 // CHECK-NEXT:   3: [B2.2].~A() (Implicit destructor)
528 // CHECK-NEXT:   Preds (1): B4
529 // CHECK-NEXT:   Succs (1): B1
530 // CHECK:      [B3]
531 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
532 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B3.2], class A)
533 // CHECK-NEXT:   2: A c;
534 // CHECK-NEXT:   3: [B3.2].~A() (Implicit destructor)
535 // CHECK-NEXT:   Preds (1): B4
536 // CHECK-NEXT:   Succs (1): B1
537 // CHECK:      [B4]
538 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
539 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B4.2], class A)
540 // CHECK-NEXT:   2: A a;
541 // CHECK-NEXT:   3: a
542 // CHECK-NEXT:   4: [B4.3] (ImplicitCastExpr, NoOp, const class A)
543 // WARNINGS-NEXT:   5: [B4.4] (CXXConstructExpr, class A)
544 // ANALYZER-NEXT:   5: [B4.4] (CXXConstructExpr, [B4.6], class A)
545 // CHECK-NEXT:   6: A b = a;
546 // CHECK-NEXT:   7: b
547 // CHECK-NEXT:   8: [B4.7] (ImplicitCastExpr, NoOp, const class A)
548 // CHECK-NEXT:   9: [B4.8].operator int
549 // CHECK:       10: [B4.8]
550 // CHECK:       11: [B4.10] (ImplicitCastExpr, UserDefinedConversion, int)
551 // CHECK:       12: [B4.11] (ImplicitCastExpr, IntegralToBoolean, _Bool)
552 // CHECK-NEXT:   T: if [B4.12]
553 // CHECK-NEXT:   Preds (1): B5
554 // CHECK-NEXT:   Succs (2): B3 B2
555 // CHECK:      [B0 (EXIT)]
556 // CHECK-NEXT:   Preds (1): B1
test_if_implicit_scope()557 void test_if_implicit_scope() {
558   A a;
559   if (A b = a)
560     A c;
561   else A c;
562 }
563 
564 // CHECK:      [B9 (ENTRY)]
565 // CHECK-NEXT:   Succs (1): B8
566 // CHECK:      [B1]
567 // CHECK-NEXT:   1: [B8.6].~A() (Implicit destructor)
568 // WARNINGS-NEXT:   2:  (CXXConstructExpr, class A)
569 // ANALYZER-NEXT:   2:  (CXXConstructExpr, [B1.3], class A)
570 // CHECK-NEXT:   3: A e;
571 // CHECK-NEXT:   4: [B1.3].~A() (Implicit destructor)
572 // CHECK-NEXT:   5: [B8.2].~A() (Implicit destructor)
573 // CHECK-NEXT:   Preds (2): B2 B5
574 // CHECK-NEXT:   Succs (1): B0
575 // CHECK:      [B2]
576 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
577 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B2.2], class A)
578 // CHECK-NEXT:   2: A d;
579 // CHECK-NEXT:   3: [B2.2].~A() (Implicit destructor)
580 // CHECK-NEXT:   4: [B4.2].~A() (Implicit destructor)
581 // CHECK-NEXT:   Preds (1): B4
582 // CHECK-NEXT:   Succs (1): B1
583 // CHECK:      [B3]
584 // CHECK-NEXT:   1: return;
585 // CHECK-NEXT:   2: [B4.2].~A() (Implicit destructor)
586 // CHECK-NEXT:   3: [B8.6].~A() (Implicit destructor)
587 // CHECK-NEXT:   4: [B8.2].~A() (Implicit destructor)
588 // CHECK-NEXT:   Preds (1): B4
589 // CHECK-NEXT:   Succs (1): B0
590 // CHECK:      [B4]
591 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
592 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B4.2], class A)
593 // CHECK-NEXT:   2: A c;
594 // CHECK-NEXT:   3: UV
595 // CHECK-NEXT:   4: [B4.3] (ImplicitCastExpr, LValueToRValue, _Bool)
596 // CHECK-NEXT:   T: if [B4.4]
597 // CHECK-NEXT:   Preds (1): B8
598 // CHECK-NEXT:   Succs (2): B3 B2
599 // CHECK:      [B5]
600 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
601 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B5.2], class A)
602 // CHECK-NEXT:   2: A d;
603 // CHECK-NEXT:   3: [B5.2].~A() (Implicit destructor)
604 // CHECK-NEXT:   4: [B7.2].~A() (Implicit destructor)
605 // CHECK-NEXT:   Preds (1): B7
606 // CHECK-NEXT:   Succs (1): B1
607 // CHECK:      [B6]
608 // CHECK-NEXT:   1: return;
609 // CHECK-NEXT:   2: [B7.2].~A() (Implicit destructor)
610 // CHECK-NEXT:   3: [B8.6].~A() (Implicit destructor)
611 // CHECK-NEXT:   4: [B8.2].~A() (Implicit destructor)
612 // CHECK-NEXT:   Preds (1): B7
613 // CHECK-NEXT:   Succs (1): B0
614 // CHECK:      [B7]
615 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
616 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B7.2], class A)
617 // CHECK-NEXT:   2: A c;
618 // CHECK-NEXT:   3: UV
619 // CHECK-NEXT:   4: [B7.3] (ImplicitCastExpr, LValueToRValue, _Bool)
620 // CHECK-NEXT:   T: if [B7.4]
621 // CHECK-NEXT:   Preds (1): B8
622 // CHECK-NEXT:   Succs (2): B6 B5
623 // CHECK:      [B8]
624 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
625 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B8.2], class A)
626 // CHECK-NEXT:   2: A a;
627 // CHECK-NEXT:   3: a
628 // CHECK-NEXT:   4: [B8.3] (ImplicitCastExpr, NoOp, const class A)
629 // WARNINGS-NEXT:   5: [B8.4] (CXXConstructExpr, class A)
630 // ANALYZER-NEXT:   5: [B8.4] (CXXConstructExpr, [B8.6], class A)
631 // CHECK-NEXT:   6: A b = a;
632 // CHECK-NEXT:   7: b
633 // CHECK-NEXT:   8: [B8.7] (ImplicitCastExpr, NoOp, const class A)
634 // CHECK-NEXT:   9: [B8.8].operator int
635 // CHECK:       10: [B8.8]
636 // CHECK:       11: [B8.10] (ImplicitCastExpr, UserDefinedConversion, int)
637 // CHECK:       12: [B8.11] (ImplicitCastExpr, IntegralToBoolean, _Bool)
638 // CHECK-NEXT:   T: if [B8.12]
639 // CHECK-NEXT:   Preds (1): B9
640 // CHECK-NEXT:   Succs (2): B7 B4
641 // CHECK:      [B0 (EXIT)]
642 // CHECK-NEXT:   Preds (3): B1 B3 B6
test_if_jumps()643 void test_if_jumps() {
644   A a;
645   if (A b = a) {
646     A c;
647     if (UV) return;
648     A d;
649   } else {
650     A c;
651     if (UV) return;
652     A d;
653   }
654   A e;
655 }
656 
657 // CHECK:      [B6 (ENTRY)]
658 // CHECK-NEXT:   Succs (1): B5
659 // CHECK:      [B1]
660 // CHECK-NEXT:   1: [B4.4].~A() (Implicit destructor)
661 // CHECK-NEXT:   2: [B5.2].~A() (Implicit destructor)
662 // CHECK-NEXT:   Preds (1): B4
663 // CHECK-NEXT:   Succs (1): B0
664 // CHECK:      [B2]
665 // CHECK-NEXT:   Preds (1): B3
666 // CHECK-NEXT:   Succs (1): B4
667 // CHECK:      [B3]
668 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
669 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B3.2], class A)
670 // CHECK-NEXT:   2: A c;
671 // CHECK-NEXT:   3: [B3.2].~A() (Implicit destructor)
672 // CHECK-NEXT:   4: [B4.4].~A() (Implicit destructor)
673 // CHECK-NEXT:   Preds (1): B4
674 // CHECK-NEXT:   Succs (1): B2
675 // CHECK:      [B4]
676 // CHECK-NEXT:   1: a
677 // CHECK-NEXT:   2: [B4.1] (ImplicitCastExpr, NoOp, const class A)
678 // WARNINGS-NEXT:   3: [B4.2] (CXXConstructExpr, class A)
679 // ANALYZER-NEXT:   3: [B4.2] (CXXConstructExpr, [B4.4], class A)
680 // CHECK-NEXT:   4: A b = a;
681 // CHECK-NEXT:   5: b
682 // CHECK-NEXT:   6: [B4.5] (ImplicitCastExpr, NoOp, const class A)
683 // CHECK-NEXT:   7: [B4.6].operator int
684 // CHECK-NEXT:   8: [B4.6]
685 // CHECK-NEXT:   9: [B4.8] (ImplicitCastExpr, UserDefinedConversion, int)
686 // CHECK:       10: [B4.9] (ImplicitCastExpr, IntegralToBoolean, _Bool)
687 // CHECK-NEXT:   T: while [B4.10]
688 // CHECK-NEXT:   Preds (2): B2 B5
689 // CHECK-NEXT:   Succs (2): B3 B1
690 // CHECK:      [B5]
691 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
692 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B5.2], class A)
693 // CHECK-NEXT:   2: A a;
694 // CHECK-NEXT:   Preds (1): B6
695 // CHECK-NEXT:   Succs (1): B4
696 // CHECK:      [B0 (EXIT)]
697 // CHECK-NEXT:   Preds (1): B1
test_while_implicit_scope()698 void test_while_implicit_scope() {
699   A a;
700   while (A b = a)
701     A c;
702 }
703 
704 // CHECK:      [B12 (ENTRY)]
705 // CHECK-NEXT:   Succs (1): B11
706 // CHECK:      [B1]
707 // CHECK-NEXT:   1: [B10.4].~A() (Implicit destructor)
708 // WARNINGS-NEXT:   2:  (CXXConstructExpr, class A)
709 // ANALYZER-NEXT:   2:  (CXXConstructExpr, [B1.3], class A)
710 // CHECK-NEXT:   3: A e;
711 // CHECK-NEXT:   4: [B1.3].~A() (Implicit destructor)
712 // CHECK-NEXT:   5: [B11.2].~A() (Implicit destructor)
713 // CHECK-NEXT:   Preds (2): B8 B10
714 // CHECK-NEXT:   Succs (1): B0
715 // CHECK:      [B2]
716 // CHECK-NEXT:   Preds (2): B3 B6
717 // CHECK-NEXT:   Succs (1): B10
718 // CHECK:      [B3]
719 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
720 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B3.2], class A)
721 // CHECK-NEXT:   2: A d;
722 // CHECK-NEXT:   3: [B3.2].~A() (Implicit destructor)
723 // CHECK-NEXT:   4: [B9.2].~A() (Implicit destructor)
724 // CHECK-NEXT:   5: [B10.4].~A() (Implicit destructor)
725 // CHECK-NEXT:   Preds (1): B5
726 // CHECK-NEXT:   Succs (1): B2
727 // CHECK:      [B4]
728 // CHECK-NEXT:   1: return;
729 // CHECK-NEXT:   2: [B9.2].~A() (Implicit destructor)
730 // CHECK-NEXT:   3: [B10.4].~A() (Implicit destructor)
731 // CHECK-NEXT:   4: [B11.2].~A() (Implicit destructor)
732 // CHECK-NEXT:   Preds (1): B5
733 // CHECK-NEXT:   Succs (1): B0
734 // CHECK:      [B5]
735 // CHECK-NEXT:   1: UV
736 // CHECK-NEXT:   2: [B5.1] (ImplicitCastExpr, LValueToRValue, _Bool)
737 // CHECK-NEXT:   T: if [B5.2]
738 // CHECK-NEXT:   Preds (1): B7
739 // CHECK-NEXT:   Succs (2): B4 B3
740 // CHECK:      [B6]
741 // CHECK-NEXT:   1: [B9.2].~A() (Implicit destructor)
742 // CHECK-NEXT:   2: [B10.4].~A() (Implicit destructor)
743 // CHECK-NEXT:   T: continue;
744 // CHECK:        Preds (1): B7
745 // CHECK-NEXT:   Succs (1): B2
746 // CHECK:      [B7]
747 // CHECK-NEXT:   1: UV
748 // CHECK-NEXT:   2: [B7.1] (ImplicitCastExpr, LValueToRValue, _Bool)
749 // CHECK-NEXT:   T: if [B7.2]
750 // CHECK-NEXT:   Preds (1): B9
751 // CHECK-NEXT:   Succs (2): B6 B5
752 // CHECK:      [B8]
753 // CHECK-NEXT:   1: [B9.2].~A() (Implicit destructor)
754 // CHECK-NEXT:   T: break;
755 // CHECK:        Preds (1): B9
756 // CHECK-NEXT:   Succs (1): B1
757 // CHECK:      [B9]
758 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
759 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B9.2], class A)
760 // CHECK-NEXT:   2: A c;
761 // CHECK-NEXT:   3: UV
762 // CHECK-NEXT:   4: [B9.3] (ImplicitCastExpr, LValueToRValue, _Bool)
763 // CHECK-NEXT:   T: if [B9.4]
764 // CHECK-NEXT:   Preds (1): B10
765 // CHECK-NEXT:   Succs (2): B8 B7
766 // CHECK:      [B10]
767 // CHECK-NEXT:   1: a
768 // CHECK-NEXT:   2: [B10.1] (ImplicitCastExpr, NoOp, const class A)
769 // WARNINGS-NEXT:   3: [B10.2] (CXXConstructExpr, class A)
770 // ANALYZER-NEXT:   3: [B10.2] (CXXConstructExpr, [B10.4], class A)
771 // CHECK-NEXT:   4: A b = a;
772 // CHECK-NEXT:   5: b
773 // CHECK-NEXT:   6: [B10.5] (ImplicitCastExpr, NoOp, const class A)
774 // CHECK-NEXT:   7: [B10.6].operator int
775 // CHECK-NEXT:   8: [B10.6]
776 // CHECK-NEXT:   9: [B10.8] (ImplicitCastExpr, UserDefinedConversion, int)
777 // CHECK:       10: [B10.9] (ImplicitCastExpr, IntegralToBoolean, _Bool)
778 // CHECK-NEXT:   T: while [B10.10]
779 // CHECK-NEXT:   Preds (2): B2 B11
780 // CHECK-NEXT:   Succs (2): B9 B1
781 // CHECK:      [B11]
782 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
783 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B11.2], class A)
784 // CHECK-NEXT:   2: A a;
785 // CHECK-NEXT:   Preds (1): B12
786 // CHECK-NEXT:   Succs (1): B10
787 // CHECK:      [B0 (EXIT)]
788 // CHECK-NEXT:   Preds (2): B1 B4
test_while_jumps()789 void test_while_jumps() {
790   A a;
791   while (A b = a) {
792     A c;
793     if (UV) break;
794     if (UV) continue;
795     if (UV) return;
796     A d;
797   }
798   A e;
799 }
800 
801 // CHECK:      [B4 (ENTRY)]
802 // CHECK-NEXT:   Succs (1): B2
803 // CHECK:      [B1]
804 // CHECK-NEXT:   1: UV
805 // CHECK-NEXT:   2: [B1.1] (ImplicitCastExpr, LValueToRValue, _Bool)
806 // CHECK-NEXT:   T: do ... while [B1.2]
807 // CHECK-NEXT:   Preds (1): B2
808 // CHECK-NEXT:   Succs (2): B3 B0
809 // CHECK:      [B2]
810 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
811 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B2.2], class A)
812 // CHECK-NEXT:   2: A a;
813 // CHECK-NEXT:   3: [B2.2].~A() (Implicit destructor)
814 // CHECK-NEXT:   Preds (2): B3 B4
815 // CHECK-NEXT:   Succs (1): B1
816 // CHECK:      [B3]
817 // CHECK-NEXT:   Preds (1): B1
818 // CHECK-NEXT:   Succs (1): B2
819 // CHECK:      [B0 (EXIT)]
820 // CHECK-NEXT:   Preds (1): B1
test_do_implicit_scope()821 void test_do_implicit_scope() {
822   do A a;
823   while (UV);
824 }
825 
826 // CHECK:      [B12 (ENTRY)]
827 // CHECK-NEXT:   Succs (1): B11
828 // CHECK:      [B1]
829 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
830 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B1.2], class A)
831 // CHECK-NEXT:   2: A d;
832 // CHECK-NEXT:   3: [B1.2].~A() (Implicit destructor)
833 // CHECK-NEXT:   4: [B11.2].~A() (Implicit destructor)
834 // CHECK-NEXT:   Preds (2): B8 B2
835 // CHECK-NEXT:   Succs (1): B0
836 // CHECK:      [B2]
837 // CHECK-NEXT:   1: UV
838 // CHECK-NEXT:   2: [B2.1] (ImplicitCastExpr, LValueToRValue, _Bool)
839 // CHECK-NEXT:   T: do ... while [B2.2]
840 // CHECK-NEXT:   Preds (2): B3 B6
841 // CHECK-NEXT:   Succs (2): B10 B1
842 // CHECK:      [B3]
843 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
844 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B3.2], class A)
845 // CHECK-NEXT:   2: A c;
846 // CHECK-NEXT:   3: [B3.2].~A() (Implicit destructor)
847 // CHECK-NEXT:   4: [B9.2].~A() (Implicit destructor)
848 // CHECK-NEXT:   Preds (1): B5
849 // CHECK-NEXT:   Succs (1): B2
850 // CHECK:      [B4]
851 // CHECK-NEXT:   1: return;
852 // CHECK-NEXT:   2: [B9.2].~A() (Implicit destructor)
853 // CHECK-NEXT:   3: [B11.2].~A() (Implicit destructor)
854 // CHECK-NEXT:   Preds (1): B5
855 // CHECK-NEXT:   Succs (1): B0
856 // CHECK:      [B5]
857 // CHECK-NEXT:   1: UV
858 // CHECK-NEXT:   2: [B5.1] (ImplicitCastExpr, LValueToRValue, _Bool)
859 // CHECK-NEXT:   T: if [B5.2]
860 // CHECK-NEXT:   Preds (1): B7
861 // CHECK-NEXT:   Succs (2): B4 B3
862 // CHECK:      [B6]
863 // CHECK-NEXT:   1: [B9.2].~A() (Implicit destructor)
864 // CHECK-NEXT:   T: continue;
865 // CHECK:        Preds (1): B7
866 // CHECK-NEXT:   Succs (1): B2
867 // CHECK:      [B7]
868 // CHECK-NEXT:   1: UV
869 // CHECK-NEXT:   2: [B7.1] (ImplicitCastExpr, LValueToRValue, _Bool)
870 // CHECK-NEXT:   T: if [B7.2]
871 // CHECK-NEXT:   Preds (1): B9
872 // CHECK-NEXT:   Succs (2): B6 B5
873 // CHECK:      [B8]
874 // CHECK-NEXT:   1: [B9.2].~A() (Implicit destructor)
875 // CHECK-NEXT:   T: break;
876 // CHECK:        Preds (1): B9
877 // CHECK-NEXT:   Succs (1): B1
878 // CHECK:      [B9]
879 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
880 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B9.2], class A)
881 // CHECK-NEXT:   2: A b;
882 // CHECK-NEXT:   3: UV
883 // CHECK-NEXT:   4: [B9.3] (ImplicitCastExpr, LValueToRValue, _Bool)
884 // CHECK-NEXT:   T: if [B9.4]
885 // CHECK-NEXT:   Preds (2): B10 B11
886 // CHECK-NEXT:   Succs (2): B8 B7
887 // CHECK:      [B10]
888 // CHECK-NEXT:   Preds (1): B2
889 // CHECK-NEXT:   Succs (1): B9
890 // CHECK:      [B11]
891 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
892 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B11.2], class A)
893 // CHECK-NEXT:   2: A a;
894 // CHECK-NEXT:   Preds (1): B12
895 // CHECK-NEXT:   Succs (1): B9
896 // CHECK:      [B0 (EXIT)]
897 // CHECK-NEXT:   Preds (2): B1 B4
test_do_jumps()898 void test_do_jumps() {
899   A a;
900   do {
901     A b;
902     if (UV) break;
903     if (UV) continue;
904     if (UV) return;
905     A c;
906   } while (UV);
907   A d;
908 }
909 
910 // CHECK:      [B4 (ENTRY)]
911 // CHECK-NEXT:   Succs (1): B2
912 // CHECK:      [B1]
913 // CHECK-NEXT:   1: [B2.6].~A() (Implicit destructor)
914 // CHECK-NEXT:   2: [B2.2].~A() (Implicit destructor)
915 // CHECK-NEXT:   Preds (2): B3 B2
916 // CHECK-NEXT:   Succs (1): B0
917 // CHECK:      [B2]
918 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
919 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B2.2], class A)
920 // CHECK-NEXT:   2: A a;
921 // CHECK-NEXT:   3: a
922 // CHECK-NEXT:   4: [B2.3] (ImplicitCastExpr, NoOp, const class A)
923 // CHECK-NEXT:   5: [B2.4] (CXXConstructExpr, class A)
924 // CHECK-NEXT:   6: A b = a;
925 // CHECK-NEXT:   7: b
926 // CHECK-NEXT:   8: [B2.7] (ImplicitCastExpr, NoOp, const class A)
927 // CHECK-NEXT:   9: [B2.8].operator int
928 // CHECK:       10: [B2.8]
929 // CHECK:       11: [B2.10] (ImplicitCastExpr, UserDefinedConversion, int)
930 // CHECK-NEXT:   T: switch [B2.11]
931 // CHECK-NEXT:   Preds (1): B4
932 // CHECK-NEXT:   Succs (1): B1
933 // CHECK:      [B3]
934 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
935 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B3.2], class A)
936 // CHECK-NEXT:   2: A c;
937 // CHECK-NEXT:   3: [B3.2].~A() (Implicit destructor)
938 // CHECK-NEXT:   Succs (1): B1
939 // CHECK:      [B0 (EXIT)]
940 // CHECK-NEXT:   Preds (1): B1
test_switch_implicit_scope()941 void test_switch_implicit_scope() {
942   A a;
943   switch (A b = a)
944     A c;
945 }
946 
947 // CHECK:      [B9 (ENTRY)]
948 // CHECK-NEXT:   Succs (1): B2
949 // CHECK:      [B1]
950 // CHECK-NEXT:   1: [B2.6].~A() (Implicit destructor)
951 // WARNINGS-NEXT:   2:  (CXXConstructExpr, class A)
952 // ANALYZER-NEXT:   2:  (CXXConstructExpr, [B1.3], class A)
953 // CHECK-NEXT:   3: A g;
954 // CHECK-NEXT:   4: [B1.3].~A() (Implicit destructor)
955 // CHECK-NEXT:   5: [B2.2].~A() (Implicit destructor)
956 // CHECK-NEXT:   Preds (3): B3 B7 B2
957 // CHECK-NEXT:   Succs (1): B0
958 // CHECK:      [B2]
959 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
960 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B2.2], class A)
961 // CHECK-NEXT:   2: A a;
962 // CHECK-NEXT:   3: a
963 // CHECK-NEXT:   4: [B2.3] (ImplicitCastExpr, NoOp, const class A)
964 // CHECK-NEXT:   5: [B2.4] (CXXConstructExpr, class A)
965 // CHECK-NEXT:   6: A b = a;
966 // CHECK-NEXT:   7: b
967 // CHECK-NEXT:   8: [B2.7] (ImplicitCastExpr, NoOp, const class A)
968 // CHECK-NEXT:   9: [B2.8].operator int
969 // CHECK:       10: [B2.8]
970 // CHECK:       11: [B2.10] (ImplicitCastExpr, UserDefinedConversion, int)
971 // CHECK-NEXT:   T: switch [B2.11]
972 // CHECK-NEXT:   Preds (1): B9
973 // CHECK-NEXT:   Succs (3): B3 B8 B1
974 // CHECK:      [B3]
975 // CHECK:       case 1:
976 // CHECK-NEXT:   T: break;
977 // CHECK:        Preds (2): B2 B4
978 // CHECK-NEXT:   Succs (1): B1
979 // CHECK:      [B4]
980 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
981 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B4.2], class A)
982 // CHECK-NEXT:   2: A f;
983 // CHECK-NEXT:   3: [B4.2].~A() (Implicit destructor)
984 // CHECK-NEXT:   4: [B8.2].~A() (Implicit destructor)
985 // CHECK-NEXT:   Preds (1): B6
986 // CHECK-NEXT:   Succs (1): B3
987 // CHECK:      [B5]
988 // CHECK-NEXT:   1: return;
989 // CHECK-NEXT:   2: [B8.2].~A() (Implicit destructor)
990 // CHECK-NEXT:   3: [B2.6].~A() (Implicit destructor)
991 // CHECK-NEXT:   4: [B2.2].~A() (Implicit destructor)
992 // CHECK-NEXT:   Preds (1): B6
993 // CHECK-NEXT:   Succs (1): B0
994 // CHECK:      [B6]
995 // CHECK-NEXT:   1: UV
996 // CHECK-NEXT:   2: [B6.1] (ImplicitCastExpr, LValueToRValue, _Bool)
997 // CHECK-NEXT:   T: if [B6.2]
998 // CHECK-NEXT:   Preds (1): B8
999 // CHECK-NEXT:   Succs (2): B5 B4
1000 // CHECK:      [B7]
1001 // CHECK-NEXT:   1: [B8.2].~A() (Implicit destructor)
1002 // CHECK-NEXT:   T: break;
1003 // CHECK:        Preds (1): B8
1004 // CHECK-NEXT:   Succs (1): B1
1005 // CHECK:      [B8]
1006 // CHECK:       case 0:
1007 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
1008 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B8.2], class A)
1009 // CHECK-NEXT:   2: A c;
1010 // CHECK-NEXT:   3: UV
1011 // CHECK-NEXT:   4: [B8.3] (ImplicitCastExpr, LValueToRValue, _Bool)
1012 // CHECK-NEXT:   T: if [B8.4]
1013 // CHECK-NEXT:   Preds (1): B2
1014 // CHECK-NEXT:   Succs (2): B7 B6
1015 // CHECK:      [B0 (EXIT)]
1016 // CHECK-NEXT:   Preds (2): B1 B5
test_switch_jumps()1017 void test_switch_jumps() {
1018   A a;
1019   switch (A b = a) {
1020   case 0: {
1021     A c;
1022     if (UV) break;
1023     if (UV) return;
1024     A f;
1025   }
1026   case 1:
1027     break;
1028   }
1029   A g;
1030 }
1031 
1032 // CHECK:      [B6 (ENTRY)]
1033 // CHECK-NEXT:   Succs (1): B5
1034 // CHECK:      [B1]
1035 // CHECK-NEXT:   1: [B4.4].~A() (Implicit destructor)
1036 // CHECK-NEXT:   2: [B5.2].~A() (Implicit destructor)
1037 // CHECK-NEXT:   Preds (1): B4
1038 // CHECK-NEXT:   Succs (1): B0
1039 // CHECK:      [B2]
1040 // CHECK-NEXT:   Preds (1): B3
1041 // CHECK-NEXT:   Succs (1): B4
1042 // CHECK:      [B3]
1043 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
1044 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B3.2], class A)
1045 // CHECK-NEXT:   2: A c;
1046 // CHECK-NEXT:   3: [B3.2].~A() (Implicit destructor)
1047 // CHECK-NEXT:   4: [B4.4].~A() (Implicit destructor)
1048 // CHECK-NEXT:   Preds (1): B4
1049 // CHECK-NEXT:   Succs (1): B2
1050 // CHECK:      [B4]
1051 // CHECK-NEXT:   1: a
1052 // CHECK-NEXT:   2: [B4.1] (ImplicitCastExpr, NoOp, const class A)
1053 // WARNINGS-NEXT:   3: [B4.2] (CXXConstructExpr, class A)
1054 // ANALYZER-NEXT:   3: [B4.2] (CXXConstructExpr, [B4.4], class A)
1055 // CHECK-NEXT:   4: A b = a;
1056 // CHECK-NEXT:   5: b
1057 // CHECK-NEXT:   6: [B4.5] (ImplicitCastExpr, NoOp, const class A)
1058 // CHECK-NEXT:   7: [B4.6].operator int
1059 // CHECK-NEXT:   8: [B4.6]
1060 // CHECK-NEXT:   9: [B4.8] (ImplicitCastExpr, UserDefinedConversion, int)
1061 // CHECK:       10: [B4.9] (ImplicitCastExpr, IntegralToBoolean, _Bool)
1062 // CHECK-NEXT:   T: for (...; [B4.10]; )
1063 // CHECK-NEXT:   Preds (2): B2 B5
1064 // CHECK-NEXT:   Succs (2): B3 B1
1065 // CHECK:      [B5]
1066 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
1067 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B5.2], class A)
1068 // CHECK-NEXT:   2: A a;
1069 // CHECK-NEXT:   Preds (1): B6
1070 // CHECK-NEXT:   Succs (1): B4
1071 // CHECK:      [B0 (EXIT)]
1072 // CHECK-NEXT:   Preds (1): B1
test_for_implicit_scope()1073 void test_for_implicit_scope() {
1074   for (A a; A b = a; )
1075     A c;
1076 }
1077 
1078 // CHECK:      [B12 (ENTRY)]
1079 // CHECK-NEXT:   Succs (1): B11
1080 // CHECK:      [B1]
1081 // CHECK-NEXT:   1: [B10.4].~A() (Implicit destructor)
1082 // CHECK-NEXT:   2: [B11.4].~A() (Implicit destructor)
1083 // WARNINGS-NEXT:   3:  (CXXConstructExpr, class A)
1084 // ANALYZER-NEXT:   3:  (CXXConstructExpr, [B1.4], class A)
1085 // CHECK-NEXT:   4: A f;
1086 // CHECK-NEXT:   5: [B1.4].~A() (Implicit destructor)
1087 // CHECK-NEXT:   6: [B11.2].~A() (Implicit destructor)
1088 // CHECK-NEXT:   Preds (2): B8 B10
1089 // CHECK-NEXT:   Succs (1): B0
1090 // CHECK:      [B2]
1091 // CHECK-NEXT:   Preds (2): B3 B6
1092 // CHECK-NEXT:   Succs (1): B10
1093 // CHECK:      [B3]
1094 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
1095 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B3.2], class A)
1096 // CHECK-NEXT:   2: A e;
1097 // CHECK-NEXT:   3: [B3.2].~A() (Implicit destructor)
1098 // CHECK-NEXT:   4: [B9.2].~A() (Implicit destructor)
1099 // CHECK-NEXT:   5: [B10.4].~A() (Implicit destructor)
1100 // CHECK-NEXT:   Preds (1): B5
1101 // CHECK-NEXT:   Succs (1): B2
1102 // CHECK:      [B4]
1103 // CHECK-NEXT:   1: return;
1104 // CHECK-NEXT:   2: [B9.2].~A() (Implicit destructor)
1105 // CHECK-NEXT:   3: [B10.4].~A() (Implicit destructor)
1106 // CHECK-NEXT:   4: [B11.4].~A() (Implicit destructor)
1107 // CHECK-NEXT:   5: [B11.2].~A() (Implicit destructor)
1108 // CHECK-NEXT:   Preds (1): B5
1109 // CHECK-NEXT:   Succs (1): B0
1110 // CHECK:      [B5]
1111 // CHECK-NEXT:   1: UV
1112 // CHECK-NEXT:   2: [B5.1] (ImplicitCastExpr, LValueToRValue, _Bool)
1113 // CHECK-NEXT:   T: if [B5.2]
1114 // CHECK-NEXT:   Preds (1): B7
1115 // CHECK-NEXT:   Succs (2): B4 B3
1116 // CHECK:      [B6]
1117 // CHECK-NEXT:   1: [B9.2].~A() (Implicit destructor)
1118 // CHECK-NEXT:   T: continue;
1119 // CHECK:        Preds (1): B7
1120 // CHECK-NEXT:   Succs (1): B2
1121 // CHECK:      [B7]
1122 // CHECK-NEXT:   1: UV
1123 // CHECK-NEXT:   2: [B7.1] (ImplicitCastExpr, LValueToRValue, _Bool)
1124 // CHECK-NEXT:   T: if [B7.2]
1125 // CHECK-NEXT:   Preds (1): B9
1126 // CHECK-NEXT:   Succs (2): B6 B5
1127 // CHECK:      [B8]
1128 // CHECK-NEXT:   1: [B9.2].~A() (Implicit destructor)
1129 // CHECK-NEXT:   T: break;
1130 // CHECK:        Preds (1): B9
1131 // CHECK-NEXT:   Succs (1): B1
1132 // CHECK:      [B9]
1133 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
1134 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B9.2], class A)
1135 // CHECK-NEXT:   2: A d;
1136 // CHECK-NEXT:   3: UV
1137 // CHECK-NEXT:   4: [B9.3] (ImplicitCastExpr, LValueToRValue, _Bool)
1138 // CHECK-NEXT:   T: if [B9.4]
1139 // CHECK-NEXT:   Preds (1): B10
1140 // CHECK-NEXT:   Succs (2): B8 B7
1141 // CHECK:      [B10]
1142 // CHECK-NEXT:   1: b
1143 // CHECK-NEXT:   2: [B10.1] (ImplicitCastExpr, NoOp, const class A)
1144 // WARNINGS-NEXT:   3: [B10.2] (CXXConstructExpr, class A)
1145 // ANALYZER-NEXT:   3: [B10.2] (CXXConstructExpr, [B10.4], class A)
1146 // CHECK-NEXT:   4: A c = b;
1147 // CHECK-NEXT:   5: c
1148 // CHECK-NEXT:   6: [B10.5] (ImplicitCastExpr, NoOp, const class A)
1149 // CHECK-NEXT:   7: [B10.6].operator int
1150 // CHECK-NEXT:   8: [B10.6]
1151 // CHECK-NEXT:   9: [B10.8] (ImplicitCastExpr, UserDefinedConversion, int)
1152 // CHECK:       10: [B10.9] (ImplicitCastExpr, IntegralToBoolean, _Bool)
1153 // CHECK-NEXT:   T: for (...; [B10.10]; )
1154 // CHECK-NEXT:   Preds (2): B2 B11
1155 // CHECK-NEXT:   Succs (2): B9 B1
1156 // CHECK:      [B11]
1157 // WARNINGS-NEXT:   1:  (CXXConstructExpr, class A)
1158 // ANALYZER-NEXT:   1:  (CXXConstructExpr, [B11.2], class A)
1159 // CHECK-NEXT:   2: A a;
1160 // WARNINGS-NEXT:   3:  (CXXConstructExpr, class A)
1161 // ANALYZER-NEXT:   3:  (CXXConstructExpr, [B11.4], class A)
1162 // CHECK-NEXT:   4: A b;
1163 // CHECK-NEXT:   Preds (1): B12
1164 // CHECK-NEXT:   Succs (1): B10
1165 // CHECK:      [B0 (EXIT)]
1166 // CHECK-NEXT:   Preds (2): B1 B4
test_for_jumps()1167 void test_for_jumps() {
1168   A a;
1169   for (A b; A c = b; ) {
1170     A d;
1171     if (UV) break;
1172     if (UV) continue;
1173     if (UV) return;
1174     A e;
1175   }
1176   A f;
1177 }
1178 
1179 // CHECK:      [B3 (ENTRY)]
1180 // CHECK-NEXT:   Succs (1): B0
1181 // CHECK:      [B1]
1182 // CHECK-NEXT:   T: try ...
1183 // CHECK-NEXT:   Succs (2): B2 B0
1184 // CHECK:      [B2]
1185 // CHECK-NEXT:  catch (const A &e):
1186 // CHECK-NEXT:   1: catch (const A &e) {
1187 // CHECK-NEXT:  }
1188 // CHECK-NEXT:   Preds (1): B1
1189 // CHECK-NEXT:   Succs (1): B0
1190 // CHECK:      [B0 (EXIT)]
1191 // CHECK-NEXT:   Preds (3): B2 B1 B3
test_catch_const_ref()1192 void test_catch_const_ref() {
1193   try {
1194   } catch (const A& e) {
1195   }
1196 }
1197 
1198 // CHECK:      [B3 (ENTRY)]
1199 // CHECK-NEXT:   Succs (1): B0
1200 // CHECK:      [B1]
1201 // CHECK-NEXT:   T: try ...
1202 // CHECK-NEXT:   Succs (2): B2 B0
1203 // CHECK:      [B2]
1204 // CHECK-NEXT:  catch (A e):
1205 // CHECK-NEXT:   1: catch (A e) {
1206 // CHECK-NEXT:  }
1207 // CHECK-NEXT:   2: [B2.1].~A() (Implicit destructor)
1208 // CHECK-NEXT:   Preds (1): B1
1209 // CHECK-NEXT:   Succs (1): B0
1210 // CHECK:      [B0 (EXIT)]
1211 // CHECK-NEXT:   Preds (3): B2 B1 B3
test_catch_copy()1212 void test_catch_copy() {
1213   try {
1214   } catch (A e) {
1215   }
1216 }
1217