/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/lib/Analysis/FlowSensitive/Value.cpp
Line | Count | Source (jump to first uncovered line) |
1 | | //===-- Value.cpp -----------------------------------------------*- C++ -*-===// |
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 support functions for the `Value` type. |
10 | | // |
11 | | //===----------------------------------------------------------------------===// |
12 | | |
13 | | #include "clang/Analysis/FlowSensitive/Value.h" |
14 | | #include "clang/Analysis/FlowSensitive/DebugSupport.h" |
15 | | #include "llvm/Support/Casting.h" |
16 | | |
17 | | namespace clang { |
18 | | namespace dataflow { |
19 | | |
20 | | static bool areEquivalentIndirectionValues(const Value &Val1, |
21 | 624 | const Value &Val2) { |
22 | 624 | if (auto *IndVal1 = dyn_cast<ReferenceValue>(&Val1)) { |
23 | 4 | auto *IndVal2 = cast<ReferenceValue>(&Val2); |
24 | 4 | return &IndVal1->getReferentLoc() == &IndVal2->getReferentLoc(); |
25 | 4 | } |
26 | 620 | if (auto *IndVal1 = dyn_cast<PointerValue>(&Val1)) { |
27 | 106 | auto *IndVal2 = cast<PointerValue>(&Val2); |
28 | 106 | return &IndVal1->getPointeeLoc() == &IndVal2->getPointeeLoc(); |
29 | 106 | } |
30 | 514 | return false; |
31 | 620 | } |
32 | | |
33 | 5.16k | bool areEquivalentValues(const Value &Val1, const Value &Val2) { |
34 | 5.16k | return &Val1 == &Val2 || (675 Val1.getKind() == Val2.getKind()675 && |
35 | 675 | (635 isa<TopBoolValue>(&Val1)635 || |
36 | 635 | areEquivalentIndirectionValues(Val1, Val2)624 )); |
37 | 5.16k | } |
38 | | |
39 | 53 | raw_ostream &operator<<(raw_ostream &OS, const Value &Val) { |
40 | 53 | switch (Val.getKind()) { |
41 | 0 | case Value::Kind::Reference: { |
42 | 0 | const auto *RV = cast<ReferenceValue>(&Val); |
43 | 0 | return OS << "Reference(" << &RV->getReferentLoc() << ")"; |
44 | 0 | } |
45 | 0 | case Value::Kind::Pointer: { |
46 | 0 | const auto *PV = dyn_cast<PointerValue>(&Val); |
47 | 0 | return OS << "Pointer(" << &PV->getPointeeLoc() << ")"; |
48 | 0 | } |
49 | | // FIXME: support remaining cases. |
50 | 53 | default: |
51 | 53 | return OS << debugString(Val.getKind()); |
52 | 53 | } |
53 | 53 | } |
54 | | |
55 | | } // namespace dataflow |
56 | | } // namespace clang |