LLVM  11.0.0git
ArchitectureSet.cpp
Go to the documentation of this file.
1 //===- ArchitectureSet.cpp ------------------------------------------------===//
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 // Implements the architecture set.
10 //
11 //===----------------------------------------------------------------------===//
12 
15 
16 namespace llvm {
17 namespace MachO {
18 
19 ArchitectureSet::ArchitectureSet(const std::vector<Architecture> &Archs)
20  : ArchitectureSet() {
21  for (auto Arch : Archs) {
22  if (Arch == AK_unknown)
23  continue;
24  set(Arch);
25  }
26 }
27 
28 size_t ArchitectureSet::count() const {
29  // popcnt
30  size_t Cnt = 0;
31  for (unsigned i = 0; i < sizeof(ArchSetType) * 8; ++i)
32  if (ArchSet & (1U << i))
33  ++Cnt;
34  return Cnt;
35 }
36 
37 ArchitectureSet::operator std::string() const {
38  if (empty())
39  return "[(empty)]";
40 
41  std::string result;
42  auto size = count();
43  for (auto arch : *this) {
44  result.append(std::string(getArchitectureName(arch)));
45  size -= 1;
46  if (size)
47  result.append(" ");
48  }
49  return result;
50 }
51 
52 ArchitectureSet::operator std::vector<Architecture>() const {
53  std::vector<Architecture> archs;
54  for (auto arch : *this) {
55  if (arch == AK_unknown)
56  continue;
57  archs.emplace_back(arch);
58  }
59  return archs;
60 }
61 
62 void ArchitectureSet::print(raw_ostream &os) const { os << std::string(*this); }
63 
65  set.print(os);
66  return os;
67 }
68 
69 } // end namespace MachO.
70 } // end namespace llvm.
This class represents lattice values for constants.
Definition: AllocatorList.h:23
constexpr ArchitectureSet()=default
raw_ostream & operator<<(raw_ostream &OS, Architecture Arch)
void print(raw_ostream &OS) const
auto size(R &&Range, std::enable_if_t< std::is_same< typename std::iterator_traits< decltype(Range.begin())>::iterator_category, std::random_access_iterator_tag >::value, void > *=nullptr)
Get the size of a range.
Definition: STLExtras.h:1473
This class implements an extremely fast bulk output stream that can only output to a stream...
Definition: raw_ostream.h:46
StringRef getArchitectureName(Architecture Arch)
Convert an architecture slice to a string.