LLVM  9.0.0svn
DWARFAddressRange.h
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1 //===- DWARFAddressRange.h --------------------------------------*- 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 #ifndef LLVM_DEBUGINFO_DWARF_DWARFADDRESSRANGE_H
10 #define LLVM_DEBUGINFO_DWARF_DWARFADDRESSRANGE_H
11 
13 #include <cstdint>
14 #include <tuple>
15 #include <vector>
16 
17 namespace llvm {
18 
19 class raw_ostream;
20 
22  uint64_t LowPC;
23  uint64_t HighPC;
24  uint64_t SectionIndex;
25 
26  DWARFAddressRange() = default;
27 
28  /// Used for unit testing.
29  DWARFAddressRange(uint64_t LowPC, uint64_t HighPC, uint64_t SectionIndex = 0)
30  : LowPC(LowPC), HighPC(HighPC), SectionIndex(SectionIndex) {}
31 
32  /// Returns true if LowPC is smaller or equal to HighPC. This accounts for
33  /// dead-stripped ranges.
34  bool valid() const { return LowPC <= HighPC; }
35 
36  /// Returns true if [LowPC, HighPC) intersects with [RHS.LowPC, RHS.HighPC).
37  bool intersects(const DWARFAddressRange &RHS) const {
38  assert(valid() && RHS.valid());
39  // Empty ranges can't intersect.
40  if (LowPC == HighPC || RHS.LowPC == RHS.HighPC)
41  return false;
42  return LowPC < RHS.HighPC && RHS.LowPC < HighPC;
43  }
44 
45  void dump(raw_ostream &OS, uint32_t AddressSize,
46  DIDumpOptions DumpOpts = {}) const;
47 };
48 
49 static inline bool operator<(const DWARFAddressRange &LHS,
50  const DWARFAddressRange &RHS) {
51  return std::tie(LHS.LowPC, LHS.HighPC) < std::tie(RHS.LowPC, RHS.HighPC);
52 }
53 
55 
56 /// DWARFAddressRangesVector - represents a set of absolute address ranges.
57 using DWARFAddressRangesVector = std::vector<DWARFAddressRange>;
58 
59 } // end namespace llvm
60 
61 #endif // LLVM_DEBUGINFO_DWARF_DWARFADDRESSRANGE_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
bool intersects(const DWARFAddressRange &RHS) const
Returns true if [LowPC, HighPC) intersects with [RHS.LowPC, RHS.HighPC).
Container for dump options that control which debug information will be dumped.
Definition: DIContext.h:157
void dump(raw_ostream &OS, uint32_t AddressSize, DIDumpOptions DumpOpts={}) const
bool valid() const
Returns true if LowPC is smaller or equal to HighPC.
DWARFAddressRange(uint64_t LowPC, uint64_t HighPC, uint64_t SectionIndex=0)
Used for unit testing.
raw_ostream & operator<<(raw_ostream &OS, const APInt &I)
Definition: APInt.h:2038
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
bool operator<(int64_t V1, const APSInt &V2)
Definition: APSInt.h:343
std::vector< DWARFAddressRange > DWARFAddressRangesVector
DWARFAddressRangesVector - represents a set of absolute address ranges.
This class implements an extremely fast bulk output stream that can only output to a stream...
Definition: raw_ostream.h:45