aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/llvm12/include/llvm/DebugInfo/DWARF/DWARFLocationExpression.h
blob: 931e7f7c991e818e36b65dd2119eb3b02d705eb4 (plain) (blame)
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
#pragma once

#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif

//===- DWARFLocationExpression.h --------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_DEBUGINFO_DWARF_DWARFLOCATIONEXPRESSION_H
#define LLVM_DEBUGINFO_DWARF_DWARFLOCATIONEXPRESSION_H

#include "llvm/ADT/Optional.h"
#include "llvm/DebugInfo/DWARF/DWARFAddressRange.h"

namespace llvm {

class raw_ostream;

/// Represents a single DWARF expression, whose value is location-dependent.
/// Typically used in DW_AT_location attributes to describe the location of
/// objects.
struct DWARFLocationExpression {
  /// The address range in which this expression is valid. None denotes a
  /// default entry which is valid in addresses not covered by other location
  /// expressions, or everywhere if there are no other expressions.
  Optional<DWARFAddressRange> Range;

  /// The expression itself.
  SmallVector<uint8_t, 4> Expr;
};

inline bool operator==(const DWARFLocationExpression &L,
                       const DWARFLocationExpression &R) {
  return L.Range == R.Range && L.Expr == R.Expr;
}

inline bool operator!=(const DWARFLocationExpression &L,
                       const DWARFLocationExpression &R) {
  return !(L == R);
}

raw_ostream &operator<<(raw_ostream &OS, const DWARFLocationExpression &Loc);

/// Represents a set of absolute location expressions.
using DWARFLocationExpressionsVector = std::vector<DWARFLocationExpression>;

} // end namespace llvm

#endif // LLVM_DEBUGINFO_DWARF_DWARFLOCATIONEXPRESSION_H

#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif