Ice Cream Sandwich  |  4.0.2_r1
C++程序  |  810行  |  21.11 KB 

// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -analyze -analyzer-checker=debug.DumpCFG -cfg-add-implicit-dtors %s 2>&1 | FileCheck %s
// XPASS: *

class A {
public:
  A() {}
  ~A() {}
  operator int() const { return 1; }
};

extern const bool UV;

void test_const_ref() {
  A a;
  const A& b = a;
  const A& c = A();
}

void test_array() {
  A a[2];
  A b[0];
}

void test_scope() {
  A a;
  { A c;
    A d;
  }
  A b;
}

void test_return() {
  A a;
  A b;
  if (UV) return;
  A c;
}

void test_goto() {
  A a;
l0:
  A b;
  { A a;
    if (UV) goto l0;
    if (UV) goto l1;
    A b;
  }
l1:
  A c;
}

void test_if_implicit_scope() {
  A a;
  if (A b = a)
    A c;
  else A c;
}

void test_if_jumps() {
  A a;
  if (A b = a) {
    A c;
    if (UV) return;
    A d;
  } else {
    A c;
    if (UV) return;
    A d;
  }
  A e;
}

void test_while_implicit_scope() {
  A a;
  while (A b = a)
    A c;
}

void test_while_jumps() {
  A a;
  while (A b = a) {
    A c;
    if (UV) break;
    if (UV) continue;
    if (UV) return;
    A d;
  }
  A e;
}

void test_do_implicit_scope() {
  do A a;
  while (UV);
}

void test_do_jumps() {
  A a;
  do {
    A b;
    if (UV) break;
    if (UV) continue;
    if (UV) return;
    A c;
  } while (UV);
  A d;
}

void test_switch_implicit_scope() {
  A a;
  switch (A b = a)
    A c;
}

void test_switch_jumps() {
  A a;
  switch (A b = a) {
  case 0: {
    A c;
    if (UV) break;
    if (UV) return;
    A f;
  }
  case 1:
    break;
  }
  A g;
}

void test_for_implicit_scope() {
  for (A a; A b = a; )
    A c;
}

void test_for_jumps() {
  A a;
  for (A b; A c = b; ) {
    A d;
    if (UV) break;
    if (UV) continue;
    if (UV) return;
    A e;
  }
  A f;
}

void test_catch_const_ref() {
  try {
  } catch (const A& e) {
  }
}

void test_catch_copy() {
  try {
  } catch (A e) {
  }
}

// CHECK: [ B2 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B1
// CHECK: [ B1 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:      3: const A &b = a;
// CHECK:      4: A()
// CHECK:      5: const A &c = A();
// CHECK:      6: [B1.5].~A() (Implicit destructor)
// CHECK:      7: [B1.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (1): B0
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (0):
// CHECK: [ B2 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B1
// CHECK: [ B1 ]
// CHECK:      1:
// CHECK:      2: A a[2];
// CHECK:      3:
// CHECK:      4: A b[0];
// CHECK:      5: [B1.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (1): B0
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (0):
// CHECK: [ B2 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B1
// CHECK: [ B1 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:      3:
// CHECK:      4: A c;
// CHECK:      5:
// CHECK:      6: A d;
// CHECK:      7: [B1.6].~A() (Implicit destructor)
// CHECK:      8: [B1.4].~A() (Implicit destructor)
// CHECK:      9:
// CHECK:     10: A b;
// CHECK:     11: [B1.10].~A() (Implicit destructor)
// CHECK:     12: [B1.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (1): B0
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (0):
// CHECK: [ B4 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B3
// CHECK: [ B1 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: [B1.2].~A() (Implicit destructor)
// CHECK:      4: [B3.4].~A() (Implicit destructor)
// CHECK:      5: [B3.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B3
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1: return;
// CHECK:      2: [B3.4].~A() (Implicit destructor)
// CHECK:      3: [B3.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B3
// CHECK:    Successors (1): B0
// CHECK: [ B3 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:      3:
// CHECK:      4: A b;
// CHECK:      5: UV
// CHECK:      T: if [B3.5]
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (2): B2 B1
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (2): B1 B2
// CHECK:    Successors (0):
// CHECK: [ B8 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B7
// CHECK: [ B1 ]
// CHECK:    l1:
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: [B1.2].~A() (Implicit destructor)
// CHECK:      4: [B6.2].~A() (Implicit destructor)
// CHECK:      5: [B7.2].~A() (Implicit destructor)
// CHECK:    Predecessors (2): B2 B3
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1:
// CHECK:      2: A b;
// CHECK:      3: [B2.2].~A() (Implicit destructor)
// CHECK:      4: [B6.4].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (1): B1
// CHECK: [ B3 ]
// CHECK:      1: [B6.4].~A() (Implicit destructor)
// CHECK:      T: goto l1;
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (1): B1
// CHECK: [ B4 ]
// CHECK:      1: UV
// CHECK:      T: if [B4.1]
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (2): B3 B2
// CHECK: [ B5 ]
// CHECK:      1: [B6.4].~A() (Implicit destructor)
// CHECK:      2: [B6.2].~A() (Implicit destructor)
// CHECK:      T: goto l0;
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (1): B6
// CHECK: [ B6 ]
// CHECK:    l0:
// CHECK:      1:
// CHECK:      2: A b;
// CHECK:      3:
// CHECK:      4: A a;
// CHECK:      5: UV
// CHECK:      T: if [B6.5]
// CHECK:    Predecessors (2): B7 B5
// CHECK:    Successors (2): B5 B4
// CHECK: [ B7 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:    Predecessors (1): B8
// CHECK:    Successors (1): B6
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (0):
// CHECK: [ B5 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B4
// CHECK: [ B1 ]
// CHECK:      1: [B4.4].~A() (Implicit destructor)
// CHECK:      2: [B4.2].~A() (Implicit destructor)
// CHECK:    Predecessors (2): B2 B3
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: [B2.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (1): B1
// CHECK: [ B3 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: [B3.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (1): B1
// CHECK: [ B4 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:      3: a
// CHECK:      4: A b = a;
// CHECK:      5: b.operator int()
// CHECK:      6: [B4.5]
// CHECK:      T: if [B4.6]
// CHECK:    Predecessors (1): B5
// CHECK:    Successors (2): B3 B2
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (0):
// CHECK: [ B9 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B8
// CHECK: [ B1 ]
// CHECK:      1: [B8.4].~A() (Implicit destructor)
// CHECK:      2:
// CHECK:      3: A e;
// CHECK:      4: [B1.3].~A() (Implicit destructor)
// CHECK:      5: [B8.2].~A() (Implicit destructor)
// CHECK:    Predecessors (2): B2 B5
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1:
// CHECK:      2: A d;
// CHECK:      3: [B2.2].~A() (Implicit destructor)
// CHECK:      4: [B4.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (1): B1
// CHECK: [ B3 ]
// CHECK:      1: return;
// CHECK:      2: [B4.2].~A() (Implicit destructor)
// CHECK:      3: [B8.4].~A() (Implicit destructor)
// CHECK:      4: [B8.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (1): B0
// CHECK: [ B4 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: UV
// CHECK:      T: if [B4.3]
// CHECK:    Predecessors (1): B8
// CHECK:    Successors (2): B3 B2
// CHECK: [ B5 ]
// CHECK:      1:
// CHECK:      2: A d;
// CHECK:      3: [B5.2].~A() (Implicit destructor)
// CHECK:      4: [B7.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B7
// CHECK:    Successors (1): B1
// CHECK: [ B6 ]
// CHECK:      1: return;
// CHECK:      2: [B7.2].~A() (Implicit destructor)
// CHECK:      3: [B8.4].~A() (Implicit destructor)
// CHECK:      4: [B8.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B7
// CHECK:    Successors (1): B0
// CHECK: [ B7 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: UV
// CHECK:      T: if [B7.3]
// CHECK:    Predecessors (1): B8
// CHECK:    Successors (2): B6 B5
// CHECK: [ B8 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:      3: a
// CHECK:      4: A b = a;
// CHECK:      5: b.operator int()
// CHECK:      6: [B8.5]
// CHECK:      T: if [B8.6]
// CHECK:    Predecessors (1): B9
// CHECK:    Successors (2): B7 B4
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (3): B1 B3 B6
// CHECK:    Successors (0):
// CHECK: [ B6 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B5
// CHECK: [ B1 ]
// CHECK:      1: [B2.2].~A() (Implicit destructor)
// CHECK:      2: [B5.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1: a
// CHECK:      2: A b = a;
// CHECK:      3: b.operator int()
// CHECK:      4: [B2.3]
// CHECK:      T: while [B2.4]
// CHECK:    Predecessors (2): B3 B5
// CHECK:    Successors (2): B4 B1
// CHECK: [ B3 ]
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (1): B2
// CHECK: [ B4 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: [B4.2].~A() (Implicit destructor)
// CHECK:      4: [B2.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (1): B3
// CHECK: [ B5 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (1): B2
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (0):
// CHECK: [ B12 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B11
// CHECK: [ B1 ]
// CHECK:      1: [B2.2].~A() (Implicit destructor)
// CHECK:      2:
// CHECK:      3: A e;
// CHECK:      4: [B1.3].~A() (Implicit destructor)
// CHECK:      5: [B11.2].~A() (Implicit destructor)
// CHECK:    Predecessors (2): B9 B2
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1: a
// CHECK:      2: A b = a;
// CHECK:      3: b.operator int()
// CHECK:      4: [B2.3]
// CHECK:      T: while [B2.4]
// CHECK:    Predecessors (2): B3 B11
// CHECK:    Successors (2): B10 B1
// CHECK: [ B3 ]
// CHECK:    Predecessors (2): B4 B7
// CHECK:    Successors (1): B2
// CHECK: [ B4 ]
// CHECK:      1:
// CHECK:      2: A d;
// CHECK:      3: [B4.2].~A() (Implicit destructor)
// CHECK:      4: [B10.2].~A() (Implicit destructor)
// CHECK:      5: [B2.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (1): B3
// CHECK: [ B5 ]
// CHECK:      1: return;
// CHECK:      2: [B10.2].~A() (Implicit destructor)
// CHECK:      3: [B2.2].~A() (Implicit destructor)
// CHECK:      4: [B11.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (1): B0
// CHECK: [ B6 ]
// CHECK:      1: UV
// CHECK:      T: if [B6.1]
// CHECK:    Predecessors (1): B8
// CHECK:    Successors (2): B5 B4
// CHECK: [ B7 ]
// CHECK:      1: [B10.2].~A() (Implicit destructor)
// CHECK:      2: [B2.2].~A() (Implicit destructor)
// CHECK:      T: continue;
// CHECK:    Predecessors (1): B8
// CHECK:    Successors (1): B3
// CHECK: [ B8 ]
// CHECK:      1: UV
// CHECK:      T: if [B8.1]
// CHECK:    Predecessors (1): B10
// CHECK:    Successors (2): B7 B6
// CHECK: [ B9 ]
// CHECK:      1: [B10.2].~A() (Implicit destructor)
// CHECK:      T: break;
// CHECK:    Predecessors (1): B10
// CHECK:    Successors (1): B1
// CHECK: [ B10 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: UV
// CHECK:      T: if [B10.3]
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (2): B9 B8
// CHECK: [ B11 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:    Predecessors (1): B12
// CHECK:    Successors (1): B2
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (2): B1 B5
// CHECK:    Successors (0):
// CHECK: [ B4 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B2
// CHECK: [ B1 ]
// CHECK:      1: UV
// CHECK:      T: do ... while [B1.1]
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (2): B3 B0
// CHECK: [ B2 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:      3: [B2.2].~A() (Implicit destructor)
// CHECK:    Predecessors (2): B3 B4
// CHECK:    Successors (1): B1
// CHECK: [ B3 ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (1): B2
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (0):
// CHECK: [ B12 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B11
// CHECK: [ B1 ]
// CHECK:      1:
// CHECK:      2: A d;
// CHECK:      3: [B1.2].~A() (Implicit destructor)
// CHECK:      4: [B11.2].~A() (Implicit destructor)
// CHECK:    Predecessors (2): B8 B2
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1: UV
// CHECK:      T: do ... while [B2.1]
// CHECK:    Predecessors (2): B3 B6
// CHECK:    Successors (2): B10 B1
// CHECK: [ B3 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: [B3.2].~A() (Implicit destructor)
// CHECK:      4: [B9.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B5
// CHECK:    Successors (1): B2
// CHECK: [ B4 ]
// CHECK:      1: return;
// CHECK:      2: [B9.2].~A() (Implicit destructor)
// CHECK:      3: [B11.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B5
// CHECK:    Successors (1): B0
// CHECK: [ B5 ]
// CHECK:      1: UV
// CHECK:      T: if [B5.1]
// CHECK:    Predecessors (1): B7
// CHECK:    Successors (2): B4 B3
// CHECK: [ B6 ]
// CHECK:      1: [B9.2].~A() (Implicit destructor)
// CHECK:      T: continue;
// CHECK:    Predecessors (1): B7
// CHECK:    Successors (1): B2
// CHECK: [ B7 ]
// CHECK:      1: UV
// CHECK:      T: if [B7.1]
// CHECK:    Predecessors (1): B9
// CHECK:    Successors (2): B6 B5
// CHECK: [ B8 ]
// CHECK:      1: [B9.2].~A() (Implicit destructor)
// CHECK:      T: break;
// CHECK:    Predecessors (1): B9
// CHECK:    Successors (1): B1
// CHECK: [ B9 ]
// CHECK:      1:
// CHECK:      2: A b;
// CHECK:      3: UV
// CHECK:      T: if [B9.3]
// CHECK:    Predecessors (2): B10 B11
// CHECK:    Successors (2): B8 B7
// CHECK: [ B10 ]
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (1): B9
// CHECK: [ B11 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:    Predecessors (1): B12
// CHECK:    Successors (1): B9
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (2): B1 B4
// CHECK:    Successors (0):
// CHECK: [ B4 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B2
// CHECK: [ B1 ]
// CHECK:      1: [B2.4].~A() (Implicit destructor)
// CHECK:      2: [B2.2].~A() (Implicit destructor)
// CHECK:    Predecessors (2): B3 B2
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:      3: a
// CHECK:      4: A b = a;
// CHECK:      5: b.operator int()
// CHECK:      T: switch [B2.5]
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (1): B1
// CHECK: [ B3 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: [B3.2].~A() (Implicit destructor)
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B1
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (0):
// CHECK: [ B9 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B2
// CHECK: [ B1 ]
// CHECK:      1: [B2.4].~A() (Implicit destructor)
// CHECK:      2:
// CHECK:      3: A g;
// CHECK:      4: [B1.3].~A() (Implicit destructor)
// CHECK:      5: [B2.2].~A() (Implicit destructor)
// CHECK:    Predecessors (3): B3 B7 B2
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:      3: a
// CHECK:      4: A b = a;
// CHECK:      5: b.operator int()
// CHECK:      T: switch [B2.5]
// CHECK:    Predecessors (1): B9
// CHECK:    Successors (3): B3 B8
// CHECK:     B1
// CHECK: [ B3 ]
// CHECK:    case 1:
// CHECK:      T: break;
// CHECK:    Predecessors (2): B2 B4
// CHECK:    Successors (1): B1
// CHECK: [ B4 ]
// CHECK:      1:
// CHECK:      2: A f;
// CHECK:      3: [B4.2].~A() (Implicit destructor)
// CHECK:      4: [B8.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (1): B3
// CHECK: [ B5 ]
// CHECK:      1: return;
// CHECK:      2: [B8.2].~A() (Implicit destructor)
// CHECK:      3: [B2.4].~A() (Implicit destructor)
// CHECK:      4: [B2.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (1): B0
// CHECK: [ B6 ]
// CHECK:      1: UV
// CHECK:      T: if [B6.1]
// CHECK:    Predecessors (1): B8
// CHECK:    Successors (2): B5 B4
// CHECK: [ B7 ]
// CHECK:      1: [B8.2].~A() (Implicit destructor)
// CHECK:      T: break;
// CHECK:    Predecessors (1): B8
// CHECK:    Successors (1): B1
// CHECK: [ B8 ]
// CHECK:    case 0:
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: UV
// CHECK:      T: if [B8.3]
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (2): B7 B6
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (2): B1 B5
// CHECK:    Successors (0):
// CHECK: [ B6 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B5
// CHECK: [ B1 ]
// CHECK:      1: [B2.2].~A() (Implicit destructor)
// CHECK:      2: [B5.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1: a
// CHECK:      2: A b = a;
// CHECK:      3: b.operator int()
// CHECK:      4: [B2.3]
// CHECK:      T: for (...; [B2.4]; )
// CHECK:    Predecessors (2): B3 B5
// CHECK:    Successors (2): B4 B1
// CHECK: [ B3 ]
// CHECK:      1: [B2.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B4
// CHECK:    Successors (1): B2
// CHECK: [ B4 ]
// CHECK:      1:
// CHECK:      2: A c;
// CHECK:      3: [B4.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (1): B3
// CHECK: [ B5 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (1): B2
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (0):
// CHECK: [ B12 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B11
// CHECK: [ B1 ]
// CHECK:      1: [B2.2].~A() (Implicit destructor)
// CHECK:      2: [B11.4].~A() (Implicit destructor)
// CHECK:      3:
// CHECK:      4: A f;
// CHECK:      5: [B1.4].~A() (Implicit destructor)
// CHECK:      6: [B11.2].~A() (Implicit destructor)
// CHECK:    Predecessors (2): B9 B2
// CHECK:    Successors (1): B0
// CHECK: [ B2 ]
// CHECK:      1: b
// CHECK:      2: A c = b;
// CHECK:      3: c.operator int()
// CHECK:      4: [B2.3]
// CHECK:      T: for (...; [B2.4]; )
// CHECK:    Predecessors (2): B3 B11
// CHECK:    Successors (2): B10 B1
// CHECK: [ B3 ]
// CHECK:      1: [B2.2].~A() (Implicit destructor)
// CHECK:    Predecessors (2): B4 B7
// CHECK:    Successors (1): B2
// CHECK: [ B4 ]
// CHECK:      1:
// CHECK:      2: A e;
// CHECK:      3: [B4.2].~A() (Implicit destructor)
// CHECK:      4: [B10.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (1): B3
// CHECK: [ B5 ]
// CHECK:      1: return;
// CHECK:      2: [B10.2].~A() (Implicit destructor)
// CHECK:      3: [B2.2].~A() (Implicit destructor)
// CHECK:      4: [B11.4].~A() (Implicit destructor)
// CHECK:      5: [B11.2].~A() (Implicit destructor)
// CHECK:    Predecessors (1): B6
// CHECK:    Successors (1): B0
// CHECK: [ B6 ]
// CHECK:      1: UV
// CHECK:      T: if [B6.1]
// CHECK:    Predecessors (1): B8
// CHECK:    Successors (2): B5 B4
// CHECK: [ B7 ]
// CHECK:      1: [B10.2].~A() (Implicit destructor)
// CHECK:      T: continue;
// CHECK:    Predecessors (1): B8
// CHECK:    Successors (1): B3
// CHECK: [ B8 ]
// CHECK:      1: UV
// CHECK:      T: if [B8.1]
// CHECK:    Predecessors (1): B10
// CHECK:    Successors (2): B7 B6
// CHECK: [ B9 ]
// CHECK:      1: [B10.2].~A() (Implicit destructor)
// CHECK:      T: break;
// CHECK:    Predecessors (1): B10
// CHECK:    Successors (1): B1
// CHECK: [ B10 ]
// CHECK:      1:
// CHECK:      2: A d;
// CHECK:      3: UV
// CHECK:      T: if [B10.3]
// CHECK:    Predecessors (1): B2
// CHECK:    Successors (2): B9 B8
// CHECK: [ B11 ]
// CHECK:      1:
// CHECK:      2: A a;
// CHECK:      3:
// CHECK:      4: A b;
// CHECK:    Predecessors (1): B12
// CHECK:    Successors (1): B2
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (2): B1 B5
// CHECK:    Successors (0):
// CHECK: [ B3 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B0
// CHECK: [ B1 ]
// CHECK:      T: try ...
// CHECK:    Predecessors (0):
// CHECK:    Successors (2): B2 B0
// CHECK: [ B2 ]
// CHECK:    catch (const A &e):
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (1): B0
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (3): B2 B1 B3
// CHECK:    Successors (0):
// CHECK: [ B3 (ENTRY) ]
// CHECK:    Predecessors (0):
// CHECK:    Successors (1): B0
// CHECK: [ B1 ]
// CHECK:      T: try ...
// CHECK:    Predecessors (0):
// CHECK:    Successors (2): B2 B0
// CHECK: [ B2 ]
// CHECK:    catch (A e):
// CHECK:      1: .~A() (Implicit destructor)
// CHECK:    Predecessors (1): B1
// CHECK:    Successors (1): B0
// CHECK: [ B0 (EXIT) ]
// CHECK:    Predecessors (3): B2 B1 B3
// CHECK:    Successors (0):