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//===- llvm/TextAPI/ArchitectureSet.h - ArchitectureSet ---------*- 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
//
//===----------------------------------------------------------------------===//
//
// Defines the architecture set.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TEXTAPI_ARCHITECTURESET_H
#define LLVM_TEXTAPI_ARCHITECTURESET_H
#include "llvm/TextAPI/Architecture.h"
#include <cstddef>
#include <iterator>
#include <limits>
#include <string>
#include <tuple>
#include <vector>
namespace llvm {
class raw_ostream;
namespace MachO {
class ArchitectureSet {
private:
using ArchSetType = uint32_t;
const static ArchSetType EndIndexVal =
std::numeric_limits<ArchSetType>::max();
ArchSetType ArchSet{0};
public:
constexpr ArchitectureSet() = default;
constexpr ArchitectureSet(ArchSetType Raw) : ArchSet(Raw) {}
ArchitectureSet(Architecture Arch) : ArchitectureSet() { set(Arch); }
ArchitectureSet(const std::vector<Architecture> &Archs);
static ArchitectureSet All() { return ArchitectureSet(EndIndexVal); }
void set(Architecture Arch) {
if (Arch == AK_unknown)
return;
ArchSet |= 1U << static_cast<int>(Arch);
}
ArchitectureSet clear(Architecture Arch) {
ArchSet &= ~(1U << static_cast<int>(Arch));
return ArchSet;
}
bool has(Architecture Arch) const {
return ArchSet & (1U << static_cast<int>(Arch));
}
bool contains(ArchitectureSet Archs) const {
return (ArchSet & Archs.ArchSet) == Archs.ArchSet;
}
size_t count() const;
bool empty() const { return ArchSet == 0; }
ArchSetType rawValue() const { return ArchSet; }
bool hasX86() const {
return has(AK_i386) || has(AK_x86_64) || has(AK_x86_64h);
}
template <typename Ty> class arch_iterator {
public:
using iterator_category = std::forward_iterator_tag;
using value_type = Architecture;
using difference_type = std::size_t;
using pointer = value_type *;
using reference = value_type &;
private:
ArchSetType Index;
Ty *ArchSet;
void findNextSetBit() {
if (Index == EndIndexVal)
return;
while (++Index < sizeof(Ty) * 8) {
if (*ArchSet & (1UL << Index))
return;
}
Index = EndIndexVal;
}
public:
arch_iterator(Ty *ArchSet, ArchSetType Index = 0)
: Index(Index), ArchSet(ArchSet) {
if (Index != EndIndexVal && !(*ArchSet & (1UL << Index)))
findNextSetBit();
}
Architecture operator*() const { return static_cast<Architecture>(Index); }
arch_iterator &operator++() {
findNextSetBit();
return *this;
}
arch_iterator operator++(int) {
auto tmp = *this;
findNextSetBit();
return tmp;
}
bool operator==(const arch_iterator &o) const {
return std::tie(Index, ArchSet) == std::tie(o.Index, o.ArchSet);
}
bool operator!=(const arch_iterator &o) const { return !(*this == o); }
};
ArchitectureSet operator&(const ArchitectureSet &o) {
return {ArchSet & o.ArchSet};
}
ArchitectureSet operator|(const ArchitectureSet &o) {
return {ArchSet | o.ArchSet};
}
ArchitectureSet &operator|=(const ArchitectureSet &o) {
ArchSet |= o.ArchSet;
return *this;
}
ArchitectureSet &operator|=(const Architecture &Arch) {
set(Arch);
return *this;
}
bool operator==(const ArchitectureSet &o) const {
return ArchSet == o.ArchSet;
}
bool operator!=(const ArchitectureSet &o) const {
return ArchSet != o.ArchSet;
}
bool operator<(const ArchitectureSet &o) const { return ArchSet < o.ArchSet; }
using iterator = arch_iterator<ArchSetType>;
using const_iterator = arch_iterator<const ArchSetType>;
iterator begin() { return {&ArchSet}; }
iterator end() { return {&ArchSet, EndIndexVal}; }
const_iterator begin() const { return {&ArchSet}; }
const_iterator end() const { return {&ArchSet, EndIndexVal}; }
operator std::string() const;
operator std::vector<Architecture>() const;
void print(raw_ostream &OS) const;
};
inline ArchitectureSet operator|(const Architecture &lhs,
const Architecture &rhs) {
return ArchitectureSet(lhs) | ArchitectureSet(rhs);
}
raw_ostream &operator<<(raw_ostream &OS, ArchitectureSet Set);
} // end namespace MachO.
} // end namespace llvm.
#endif // LLVM_TEXTAPI_ARCHITECTURESET_H
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