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[llvm] Add enum iteration to Sequence
This patch allows iterating typed enum via the ADT/Sequence utility. It also changes the original design to better separate concerns: - `StrongInt` only deals with safe `intmax_t` operations, - `SafeIntIterator` presents the iterator and reverse iterator interface but only deals with safe `StrongInt` internally. - `iota_range` only deals with `SafeIntIterator` internally. This design ensures that operations are always valid. In particular, "Out of bounds" assertions fire when: - the `value_type` is not representable as an `intmax_t` - iterator operations make internal computation underflow/overflow - the internal representation cannot be converted back to `value_type` Differential Revision: https://reviews.llvm.org/D106279
This commit is contained in:
Guillaume Chatelet
parent
912cf6c6cb
commit
a29bc1a45f
@ -15,163 +15,223 @@
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#ifndef LLVM_ADT_SEQUENCE_H
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#define LLVM_ADT_SEQUENCE_H
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#include <cstddef> //std::ptrdiff_t
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#include <cassert> // assert
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#include <iterator> // std::random_access_iterator_tag
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#include <limits> // std::numeric_limits
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#include <type_traits> // std::underlying_type, std::is_enum
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#include "llvm/Support/MathExtras.h" // AddOverflow / SubOverflow
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namespace llvm {
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namespace detail {
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template <typename T, bool IsReversed> struct iota_range_iterator {
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// Returns whether a value of type U can be represented with type T.
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template <typename T, typename U> bool canTypeFitValue(const U Value) {
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const intmax_t BotT = intmax_t(std::numeric_limits<T>::min());
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const intmax_t BotU = intmax_t(std::numeric_limits<U>::min());
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const uintmax_t TopT = uintmax_t(std::numeric_limits<T>::max());
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const uintmax_t TopU = uintmax_t(std::numeric_limits<U>::max());
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return !((BotT > BotU && Value < static_cast<U>(BotT)) ||
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(TopT < TopU && Value > static_cast<U>(TopT)));
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}
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// An integer type that asserts when:
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// - constructed from a value that doesn't fit into intmax_t,
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// - casted to a type that cannot hold the current value,
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// - its internal representation overflows.
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struct CheckedInt {
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// Integral constructor, asserts if Value cannot be represented as intmax_t.
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template <typename Integral, typename std::enable_if_t<
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std::is_integral<Integral>::value, bool> = 0>
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static CheckedInt from(Integral FromValue) {
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if (!canTypeFitValue<intmax_t>(FromValue))
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assertOutOfBounds();
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CheckedInt Result;
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Result.Value = static_cast<intmax_t>(FromValue);
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return Result;
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}
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// Enum constructor, asserts if Value cannot be represented as intmax_t.
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template <typename Enum,
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typename std::enable_if_t<std::is_enum<Enum>::value, bool> = 0>
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static CheckedInt from(Enum FromValue) {
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using type = typename std::underlying_type<Enum>::type;
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return from<type>(static_cast<type>(FromValue));
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}
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// Equality
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bool operator==(const CheckedInt &O) const { return Value == O.Value; }
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bool operator!=(const CheckedInt &O) const { return Value != O.Value; }
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CheckedInt operator+(intmax_t Offset) const {
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CheckedInt Result;
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if (AddOverflow(Value, Offset, Result.Value))
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assertOutOfBounds();
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return Result;
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}
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intmax_t operator-(CheckedInt Other) const {
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intmax_t Result;
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if (SubOverflow(Value, Other.Value, Result))
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assertOutOfBounds();
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return Result;
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}
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// Convert to integral, asserts if Value cannot be represented as Integral.
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template <typename Integral, typename std::enable_if_t<
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std::is_integral<Integral>::value, bool> = 0>
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Integral to() const {
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if (!canTypeFitValue<Integral>(Value))
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assertOutOfBounds();
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return static_cast<Integral>(Value);
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}
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// Convert to enum, asserts if Value cannot be represented as Enum's
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// underlying type.
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template <typename Enum,
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typename std::enable_if_t<std::is_enum<Enum>::value, bool> = 0>
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Enum to() const {
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using type = typename std::underlying_type<Enum>::type;
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return Enum(to<type>());
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}
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private:
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static void assertOutOfBounds() { assert(false && "Out of bounds"); }
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intmax_t Value;
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};
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template <typename T, bool IsReverse> struct SafeIntIterator {
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using iterator_category = std::random_access_iterator_tag;
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using value_type = T;
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using difference_type = std::ptrdiff_t;
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using difference_type = intmax_t;
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using pointer = T *;
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using reference = T &;
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private:
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struct Forward {
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static void increment(T &V) { ++V; }
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static void decrement(T &V) { --V; }
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static void offset(T &V, difference_type Offset) { V += Offset; }
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static T add(const T &V, difference_type Offset) { return V + Offset; }
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static difference_type difference(const T &A, const T &B) { return A - B; }
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};
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struct Reverse {
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static void increment(T &V) { --V; }
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static void decrement(T &V) { ++V; }
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static void offset(T &V, difference_type Offset) { V -= Offset; }
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static T add(const T &V, difference_type Offset) { return V - Offset; }
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static difference_type difference(const T &A, const T &B) { return B - A; }
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};
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using Op = std::conditional_t<!IsReversed, Forward, Reverse>;
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public:
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// default-constructible
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iota_range_iterator() = default;
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// copy-constructible
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iota_range_iterator(const iota_range_iterator &) = default;
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// value constructor
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explicit iota_range_iterator(T Value) : Value(Value) {}
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// copy-assignable
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iota_range_iterator &operator=(const iota_range_iterator &) = default;
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// destructible
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~iota_range_iterator() = default;
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// Can be compared for equivalence using the equality/inequality operators,
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bool operator!=(const iota_range_iterator &RHS) const {
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return Value != RHS.Value;
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}
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bool operator==(const iota_range_iterator &RHS) const {
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return Value == RHS.Value;
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}
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// Comparison
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bool operator<(const iota_range_iterator &Other) const {
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return Op::difference(Value, Other.Value) < 0;
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}
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bool operator<=(const iota_range_iterator &Other) const {
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return Op::difference(Value, Other.Value) <= 0;
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}
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bool operator>(const iota_range_iterator &Other) const {
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return Op::difference(Value, Other.Value) > 0;
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}
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bool operator>=(const iota_range_iterator &Other) const {
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return Op::difference(Value, Other.Value) >= 0;
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}
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// Construct from T.
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explicit SafeIntIterator(T Value) : SI(CheckedInt::from<T>(Value)) {}
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// Construct from other direction.
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SafeIntIterator(const SafeIntIterator<T, !IsReverse> &O) : SI(O.SI) {}
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// Dereference
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T operator*() const { return Value; }
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T operator[](difference_type Offset) const { return Op::add(Value, Offset); }
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value_type operator*() const { return SI.to<T>(); }
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// Indexing
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value_type operator[](intmax_t Offset) const { return *(*this + Offset); }
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// Arithmetic
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iota_range_iterator operator+(difference_type Offset) const {
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return {Op::add(Value, Offset)};
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}
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iota_range_iterator operator-(difference_type Offset) const {
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return {Op::add(Value, -Offset)};
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}
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// Can be compared for equivalence using the equality/inequality operators.
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bool operator==(const SafeIntIterator &O) const { return SI == O.SI; }
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bool operator!=(const SafeIntIterator &O) const { return SI != O.SI; }
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// Comparison
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bool operator<(const SafeIntIterator &O) const { return (*this - O) < 0; }
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bool operator>(const SafeIntIterator &O) const { return (*this - O) > 0; }
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bool operator<=(const SafeIntIterator &O) const { return (*this - O) <= 0; }
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bool operator>=(const SafeIntIterator &O) const { return (*this - O) >= 0; }
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// Iterator difference
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difference_type operator-(const iota_range_iterator &Other) const {
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return Op::difference(Value, Other.Value);
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}
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// Pre Increment/Decrement
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void operator++() { offset(1); }
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void operator--() { offset(-1); }
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// Pre/Post Increment
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iota_range_iterator &operator++() {
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Op::increment(Value);
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return *this;
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// Post Increment/Decrement
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SafeIntIterator operator++(int) {
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const auto Copy = *this;
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++*this;
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return Copy;
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}
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iota_range_iterator operator++(int) {
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iota_range_iterator Tmp = *this;
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Op::increment(Value);
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return Tmp;
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}
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// Pre/Post Decrement
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iota_range_iterator &operator--() {
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Op::decrement(Value);
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return *this;
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}
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iota_range_iterator operator--(int) {
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iota_range_iterator Tmp = *this;
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Op::decrement(Value);
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return Tmp;
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SafeIntIterator operator--(int) {
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const auto Copy = *this;
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--*this;
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return Copy;
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}
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// Compound assignment operators
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iota_range_iterator &operator+=(difference_type Offset) {
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Op::offset(Value, Offset);
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return *this;
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}
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iota_range_iterator &operator-=(difference_type Offset) {
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Op::offset(Value, -Offset);
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return *this;
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void operator+=(intmax_t Offset) { offset(Offset); }
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void operator-=(intmax_t Offset) { offset(-Offset); }
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// Arithmetic
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SafeIntIterator operator+(intmax_t Offset) const { return add(Offset); }
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SafeIntIterator operator-(intmax_t Offset) const { return add(-Offset); }
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// Difference
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intmax_t operator-(const SafeIntIterator &O) const {
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return IsReverse ? O.SI - SI : SI - O.SI;
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}
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private:
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T Value;
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SafeIntIterator(const CheckedInt &SI) : SI(SI) {}
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static intmax_t getOffset(intmax_t Offset) {
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return IsReverse ? -Offset : Offset;
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}
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CheckedInt add(intmax_t Offset) const { return SI + getOffset(Offset); }
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void offset(intmax_t Offset) { SI = SI + getOffset(Offset); }
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CheckedInt SI;
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// To allow construction from the other direction.
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template <typename, bool> friend struct SafeIntIterator;
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};
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} // namespace detail
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template <typename ValueT> struct iota_range {
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static_assert(std::is_integral<ValueT>::value,
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"ValueT must be an integral type");
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using value_type = ValueT;
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using reference = ValueT &;
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using const_reference = const ValueT &;
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using iterator = detail::iota_range_iterator<value_type, false>;
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template <typename T> struct iota_range {
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using value_type = T;
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using reference = T &;
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using const_reference = const T &;
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using iterator = detail::SafeIntIterator<value_type, false>;
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using const_iterator = iterator;
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using reverse_iterator = detail::iota_range_iterator<value_type, true>;
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using reverse_iterator = detail::SafeIntIterator<value_type, true>;
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using const_reverse_iterator = reverse_iterator;
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using difference_type = std::ptrdiff_t;
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using difference_type = intmax_t;
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using size_type = std::size_t;
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value_type Begin;
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value_type End;
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explicit iota_range(T Begin, T End, bool Inclusive)
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: BeginValue(Begin), PastEndValue(End) {
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assert(Begin <= End && "Begin must be less or equal to End.");
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if (Inclusive)
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++PastEndValue;
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}
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explicit iota_range(ValueT Begin, ValueT End) : Begin(Begin), End(End) {}
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size_t size() const { return PastEndValue - BeginValue; }
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bool empty() const { return BeginValue == PastEndValue; }
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size_t size() const { return End - Begin; }
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bool empty() const { return Begin == End; }
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auto begin() const { return const_iterator(BeginValue); }
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auto end() const { return const_iterator(PastEndValue); }
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auto begin() const { return const_iterator(Begin); }
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auto end() const { return const_iterator(End); }
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auto rbegin() const { return const_reverse_iterator(End - 1); }
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auto rend() const { return const_reverse_iterator(Begin - 1); }
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auto rbegin() const { return const_reverse_iterator(PastEndValue - 1); }
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auto rend() const { return const_reverse_iterator(BeginValue - 1); }
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private:
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static_assert(std::is_same<ValueT, std::remove_cv_t<ValueT>>::value,
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"ValueT must not be const nor volatile");
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static_assert(std::is_integral<T>::value || std::is_enum<T>::value,
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"T must be an integral or enum type");
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static_assert(std::is_same<T, std::remove_cv_t<T>>::value,
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"T must not be const nor volatile");
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iterator BeginValue;
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iterator PastEndValue;
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};
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template <typename ValueT> auto seq(ValueT Begin, ValueT End) {
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return iota_range<ValueT>(Begin, End);
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/// Iterate over an integral/enum type from Begin up to - but not including -
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/// End.
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/// Note on enum iteration: `seq` will generate each consecutive value, even if
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/// no enumerator with that value exists.
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/// Note: Begin and End values have to be within [INTMAX_MIN, INTMAX_MAX] for
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/// forward iteration (resp. [INTMAX_MIN + 1, INTMAX_MAX] for reverse
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/// iteration).
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template <typename T> auto seq(T Begin, T End) {
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return iota_range<T>(Begin, End, false);
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}
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/// Iterate over an integral/enum type from Begin to End inclusive.
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/// Note on enum iteration: `seq_inclusive` will generate each consecutive
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/// value, even if no enumerator with that value exists.
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/// Note: Begin and End values have to be within [INTMAX_MIN, INTMAX_MAX - 1]
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/// for forward iteration (resp. [INTMAX_MIN + 1, INTMAX_MAX - 1] for reverse
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/// iteration).
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template <typename T> auto seq_inclusive(T Begin, T End) {
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return iota_range<T>(Begin, End, true);
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}
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} // end namespace llvm
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@ -14,6 +14,7 @@
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#ifndef LLVM_SUPPORT_MACHINEVALUETYPE_H
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#define LLVM_SUPPORT_MACHINEVALUETYPE_H
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#include "llvm/ADT/Sequence.h"
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#include "llvm/ADT/iterator_range.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/MathExtras.h"
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@ -1398,84 +1399,55 @@ namespace llvm {
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/// returned as Other, otherwise they are invalid.
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static MVT getVT(Type *Ty, bool HandleUnknown = false);
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private:
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/// A simple iterator over the MVT::SimpleValueType enum.
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struct mvt_iterator {
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SimpleValueType VT;
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mvt_iterator(SimpleValueType VT) : VT(VT) {}
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MVT operator*() const { return VT; }
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bool operator!=(const mvt_iterator &LHS) const { return VT != LHS.VT; }
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mvt_iterator& operator++() {
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VT = (MVT::SimpleValueType)((int)VT + 1);
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assert((int)VT <= MVT::MAX_ALLOWED_VALUETYPE &&
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"MVT iterator overflowed.");
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return *this;
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}
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};
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/// A range of the MVT::SimpleValueType enum.
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using mvt_range = iterator_range<mvt_iterator>;
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public:
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/// SimpleValueType Iteration
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/// @{
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static mvt_range all_valuetypes() {
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return mvt_range(MVT::FIRST_VALUETYPE,
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(MVT::SimpleValueType)(MVT::LAST_VALUETYPE + 1));
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static auto all_valuetypes() {
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return seq_inclusive(MVT::FIRST_VALUETYPE, MVT::LAST_VALUETYPE);
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}
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static mvt_range integer_valuetypes() {
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return mvt_range(MVT::FIRST_INTEGER_VALUETYPE,
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(MVT::SimpleValueType)(MVT::LAST_INTEGER_VALUETYPE + 1));
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static auto integer_valuetypes() {
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return seq_inclusive(MVT::FIRST_INTEGER_VALUETYPE,
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MVT::LAST_INTEGER_VALUETYPE);
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}
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static mvt_range fp_valuetypes() {
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return mvt_range(MVT::FIRST_FP_VALUETYPE,
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(MVT::SimpleValueType)(MVT::LAST_FP_VALUETYPE + 1));
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static auto fp_valuetypes() {
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return seq_inclusive(MVT::FIRST_FP_VALUETYPE, MVT::LAST_FP_VALUETYPE);
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}
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static mvt_range vector_valuetypes() {
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return mvt_range(MVT::FIRST_VECTOR_VALUETYPE,
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(MVT::SimpleValueType)(MVT::LAST_VECTOR_VALUETYPE + 1));
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static auto vector_valuetypes() {
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return seq_inclusive(MVT::FIRST_VECTOR_VALUETYPE,
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MVT::LAST_VECTOR_VALUETYPE);
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}
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static mvt_range fixedlen_vector_valuetypes() {
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return mvt_range(
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MVT::FIRST_FIXEDLEN_VECTOR_VALUETYPE,
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(MVT::SimpleValueType)(MVT::LAST_FIXEDLEN_VECTOR_VALUETYPE + 1));
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static auto fixedlen_vector_valuetypes() {
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return seq_inclusive(MVT::FIRST_FIXEDLEN_VECTOR_VALUETYPE,
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MVT::LAST_FIXEDLEN_VECTOR_VALUETYPE);
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}
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static mvt_range scalable_vector_valuetypes() {
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return mvt_range(
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MVT::FIRST_SCALABLE_VECTOR_VALUETYPE,
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(MVT::SimpleValueType)(MVT::LAST_SCALABLE_VECTOR_VALUETYPE + 1));
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static auto scalable_vector_valuetypes() {
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return seq_inclusive(MVT::FIRST_SCALABLE_VECTOR_VALUETYPE,
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MVT::LAST_SCALABLE_VECTOR_VALUETYPE);
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}
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static mvt_range integer_fixedlen_vector_valuetypes() {
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return mvt_range(
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MVT::FIRST_INTEGER_FIXEDLEN_VECTOR_VALUETYPE,
|
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(MVT::SimpleValueType)(MVT::LAST_INTEGER_FIXEDLEN_VECTOR_VALUETYPE + 1));
|
||||
static auto integer_fixedlen_vector_valuetypes() {
|
||||
return seq_inclusive(MVT::FIRST_INTEGER_FIXEDLEN_VECTOR_VALUETYPE,
|
||||
MVT::LAST_INTEGER_FIXEDLEN_VECTOR_VALUETYPE);
|
||||
}
|
||||
|
||||
static mvt_range fp_fixedlen_vector_valuetypes() {
|
||||
return mvt_range(
|
||||
MVT::FIRST_FP_FIXEDLEN_VECTOR_VALUETYPE,
|
||||
(MVT::SimpleValueType)(MVT::LAST_FP_FIXEDLEN_VECTOR_VALUETYPE + 1));
|
||||
static auto fp_fixedlen_vector_valuetypes() {
|
||||
return seq_inclusive(MVT::FIRST_FP_FIXEDLEN_VECTOR_VALUETYPE,
|
||||
MVT::LAST_FP_FIXEDLEN_VECTOR_VALUETYPE);
|
||||
}
|
||||
|
||||
static mvt_range integer_scalable_vector_valuetypes() {
|
||||
return mvt_range(
|
||||
MVT::FIRST_INTEGER_SCALABLE_VECTOR_VALUETYPE,
|
||||
(MVT::SimpleValueType)(MVT::LAST_INTEGER_SCALABLE_VECTOR_VALUETYPE + 1));
|
||||
static auto integer_scalable_vector_valuetypes() {
|
||||
return seq_inclusive(MVT::FIRST_INTEGER_SCALABLE_VECTOR_VALUETYPE,
|
||||
MVT::LAST_INTEGER_SCALABLE_VECTOR_VALUETYPE);
|
||||
}
|
||||
|
||||
static mvt_range fp_scalable_vector_valuetypes() {
|
||||
return mvt_range(
|
||||
MVT::FIRST_FP_SCALABLE_VECTOR_VALUETYPE,
|
||||
(MVT::SimpleValueType)(MVT::LAST_FP_SCALABLE_VECTOR_VALUETYPE + 1));
|
||||
static auto fp_scalable_vector_valuetypes() {
|
||||
return seq_inclusive(MVT::FIRST_FP_SCALABLE_VECTOR_VALUETYPE,
|
||||
MVT::LAST_FP_SCALABLE_VECTOR_VALUETYPE);
|
||||
}
|
||||
/// @}
|
||||
};
|
||||
|
||||
@ -4634,8 +4634,7 @@ SDValue DAGTypeLegalizer::WidenVecOp_EXTEND(SDNode *N) {
|
||||
EVT InVT = InOp.getValueType();
|
||||
if (InVT.getSizeInBits() != VT.getSizeInBits()) {
|
||||
EVT InEltVT = InVT.getVectorElementType();
|
||||
for (int i = MVT::FIRST_VECTOR_VALUETYPE, e = MVT::LAST_VECTOR_VALUETYPE; i < e; ++i) {
|
||||
EVT FixedVT = (MVT::SimpleValueType)i;
|
||||
for (EVT FixedVT : MVT::vector_valuetypes()) {
|
||||
EVT FixedEltVT = FixedVT.getVectorElementType();
|
||||
if (TLI.isTypeLegal(FixedVT) &&
|
||||
FixedVT.getSizeInBits() == VT.getSizeInBits() &&
|
||||
@ -5162,14 +5161,11 @@ static EVT FindMemType(SelectionDAG& DAG, const TargetLowering &TLI,
|
||||
if (!Scalable && Width == WidenEltWidth)
|
||||
return RetVT;
|
||||
|
||||
// See if there is larger legal integer than the element type to load/store.
|
||||
unsigned VT;
|
||||
// Don't bother looking for an integer type if the vector is scalable, skip
|
||||
// to vector types.
|
||||
if (!Scalable) {
|
||||
for (VT = (unsigned)MVT::LAST_INTEGER_VALUETYPE;
|
||||
VT >= (unsigned)MVT::FIRST_INTEGER_VALUETYPE; --VT) {
|
||||
EVT MemVT((MVT::SimpleValueType) VT);
|
||||
// See if there is larger legal integer than the element type to load/store.
|
||||
for (EVT MemVT : reverse(MVT::integer_valuetypes())) {
|
||||
unsigned MemVTWidth = MemVT.getSizeInBits();
|
||||
if (MemVT.getSizeInBits() <= WidenEltWidth)
|
||||
break;
|
||||
@ -5190,9 +5186,7 @@ static EVT FindMemType(SelectionDAG& DAG, const TargetLowering &TLI,
|
||||
|
||||
// See if there is a larger vector type to load/store that has the same vector
|
||||
// element type and is evenly divisible with the WidenVT.
|
||||
for (VT = (unsigned)MVT::LAST_VECTOR_VALUETYPE;
|
||||
VT >= (unsigned)MVT::FIRST_VECTOR_VALUETYPE; --VT) {
|
||||
EVT MemVT = (MVT::SimpleValueType) VT;
|
||||
for (EVT MemVT : reverse(MVT::vector_valuetypes())) {
|
||||
// Skip vector MVTs which don't match the scalable property of WidenVT.
|
||||
if (Scalable != MemVT.isScalableVector())
|
||||
continue;
|
||||
|
||||
@ -918,9 +918,9 @@ std::vector<InstructionTemplate> ExegesisX86Target::generateInstructionVariants(
|
||||
continue;
|
||||
case X86::OperandType::OPERAND_COND_CODE: {
|
||||
Exploration = true;
|
||||
auto CondCodes = seq((int)X86::CondCode::COND_O,
|
||||
1 + (int)X86::CondCode::LAST_VALID_COND);
|
||||
Choices.reserve(std::distance(CondCodes.begin(), CondCodes.end()));
|
||||
auto CondCodes =
|
||||
seq_inclusive(X86::CondCode::COND_O, X86::CondCode::LAST_VALID_COND);
|
||||
Choices.reserve(CondCodes.size());
|
||||
for (int CondCode : CondCodes)
|
||||
Choices.emplace_back(MCOperand::createImm(CondCode));
|
||||
break;
|
||||
|
||||
@ -84,7 +84,8 @@ public:
|
||||
AttrPtrVecVecTy &AttributeSetsToPreserve) {
|
||||
assert(AttributeSetsToPreserve.empty() && "Should not be sharing vectors.");
|
||||
AttributeSetsToPreserve.reserve(AL.getNumAttrSets());
|
||||
for (unsigned SetIdx : seq(AL.index_begin(), AL.index_end())) {
|
||||
for (unsigned SetIdx = AL.index_begin(), SetEndIdx = AL.index_end();
|
||||
SetIdx != SetEndIdx; ++SetIdx) {
|
||||
AttrPtrIdxVecVecTy AttributesToPreserve;
|
||||
AttributesToPreserve.first = SetIdx;
|
||||
visitAttributeSet(AL.getAttributes(AttributesToPreserve.first),
|
||||
|
||||
@ -7,30 +7,197 @@
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "llvm/ADT/Sequence.h"
|
||||
#include "gmock/gmock.h"
|
||||
#include "gtest/gtest.h"
|
||||
|
||||
#include <list>
|
||||
#include <algorithm>
|
||||
#include <numeric>
|
||||
|
||||
using namespace llvm;
|
||||
|
||||
using testing::ElementsAre;
|
||||
|
||||
namespace {
|
||||
|
||||
TEST(SequenceTest, Forward) {
|
||||
int X = 0;
|
||||
for (int I : seq(0, 10)) {
|
||||
EXPECT_EQ(X, I);
|
||||
++X;
|
||||
}
|
||||
EXPECT_EQ(10, X);
|
||||
using detail::canTypeFitValue;
|
||||
using detail::CheckedInt;
|
||||
|
||||
using IntegralTypes = testing::Types<uint8_t, // 0
|
||||
uint16_t, // 1
|
||||
uint32_t, // 2
|
||||
uint64_t, // 3
|
||||
uintmax_t, // 4
|
||||
int8_t, // 5
|
||||
int16_t, // 6
|
||||
int32_t, // 7
|
||||
int64_t, // 8
|
||||
intmax_t // 9
|
||||
>;
|
||||
|
||||
template <class T> class StrongIntTest : public testing::Test {};
|
||||
TYPED_TEST_SUITE(StrongIntTest, IntegralTypes);
|
||||
TYPED_TEST(StrongIntTest, Operations) {
|
||||
using T = TypeParam;
|
||||
auto Max = std::numeric_limits<T>::max();
|
||||
auto Min = std::numeric_limits<T>::min();
|
||||
|
||||
// We bail out for types that are not entirely representable within intmax_t.
|
||||
if (!canTypeFitValue<intmax_t>(Max) || !canTypeFitValue<intmax_t>(Min))
|
||||
return;
|
||||
|
||||
// All representable values convert back and forth.
|
||||
EXPECT_EQ(CheckedInt::from(Min).template to<T>(), Min);
|
||||
EXPECT_EQ(CheckedInt::from(Max).template to<T>(), Max);
|
||||
|
||||
// Addition -2, -1, 0, 1, 2.
|
||||
const T Expected = Max / 2;
|
||||
const CheckedInt Actual = CheckedInt::from(Expected);
|
||||
EXPECT_EQ((Actual + -2).template to<T>(), Expected - 2);
|
||||
EXPECT_EQ((Actual + -1).template to<T>(), Expected - 1);
|
||||
EXPECT_EQ((Actual + 0).template to<T>(), Expected);
|
||||
EXPECT_EQ((Actual + 1).template to<T>(), Expected + 1);
|
||||
EXPECT_EQ((Actual + 2).template to<T>(), Expected + 2);
|
||||
|
||||
// EQ/NEQ
|
||||
EXPECT_EQ(Actual, Actual);
|
||||
EXPECT_NE(Actual, Actual + 1);
|
||||
|
||||
// Difference
|
||||
EXPECT_EQ(Actual - Actual, 0);
|
||||
EXPECT_EQ((Actual + 1) - Actual, 1);
|
||||
EXPECT_EQ(Actual - (Actual + 2), -2);
|
||||
}
|
||||
|
||||
TEST(SequenceTest, Backward) {
|
||||
int X = 9;
|
||||
for (int I : reverse(seq(0, 10))) {
|
||||
EXPECT_EQ(X, I);
|
||||
--X;
|
||||
TEST(StrongIntTest, Enums) {
|
||||
enum UntypedEnum { A = 3 };
|
||||
EXPECT_EQ(CheckedInt::from(A).to<UntypedEnum>(), A);
|
||||
|
||||
enum TypedEnum : uint32_t { B = 3 };
|
||||
EXPECT_EQ(CheckedInt::from(B).to<TypedEnum>(), B);
|
||||
|
||||
enum class ScopedEnum : uint16_t { C = 3 };
|
||||
EXPECT_EQ(CheckedInt::from(ScopedEnum::C).to<ScopedEnum>(), ScopedEnum::C);
|
||||
}
|
||||
EXPECT_EQ(-1, X);
|
||||
|
||||
#if defined(GTEST_HAS_DEATH_TEST) && !defined(NDEBUG)
|
||||
TEST(StrongIntDeathTest, OutOfBounds) {
|
||||
// Values above 'INTMAX_MAX' are not representable.
|
||||
EXPECT_DEATH(CheckedInt::from<uintmax_t>(INTMAX_MAX + 1ULL), "Out of bounds");
|
||||
EXPECT_DEATH(CheckedInt::from<uintmax_t>(UINTMAX_MAX), "Out of bounds");
|
||||
// Casting to narrower type asserts when out of bounds.
|
||||
EXPECT_DEATH(CheckedInt::from(-1).to<uint8_t>(), "Out of bounds");
|
||||
EXPECT_DEATH(CheckedInt::from(256).to<uint8_t>(), "Out of bounds");
|
||||
// Operations leading to intmax_t overflow assert.
|
||||
EXPECT_DEATH(CheckedInt::from(INTMAX_MAX) + 1, "Out of bounds");
|
||||
EXPECT_DEATH(CheckedInt::from(INTMAX_MIN) + -1, "Out of bounds");
|
||||
EXPECT_DEATH(CheckedInt::from(INTMAX_MIN) - CheckedInt::from(INTMAX_MAX),
|
||||
"Out of bounds");
|
||||
}
|
||||
#endif
|
||||
|
||||
TEST(SafeIntIteratorTest, Operations) {
|
||||
detail::SafeIntIterator<int, false> Forward(0);
|
||||
detail::SafeIntIterator<int, true> Reverse(0);
|
||||
|
||||
const auto SetToZero = [&]() {
|
||||
Forward = detail::SafeIntIterator<int, false>(0);
|
||||
Reverse = detail::SafeIntIterator<int, true>(0);
|
||||
};
|
||||
|
||||
// Equality / Comparisons
|
||||
SetToZero();
|
||||
EXPECT_EQ(Forward, Forward);
|
||||
EXPECT_LT(Forward - 1, Forward);
|
||||
EXPECT_LE(Forward, Forward);
|
||||
EXPECT_LE(Forward - 1, Forward);
|
||||
EXPECT_GT(Forward + 1, Forward);
|
||||
EXPECT_GE(Forward, Forward);
|
||||
EXPECT_GE(Forward + 1, Forward);
|
||||
|
||||
EXPECT_EQ(Reverse, Reverse);
|
||||
EXPECT_LT(Reverse - 1, Reverse);
|
||||
EXPECT_LE(Reverse, Reverse);
|
||||
EXPECT_LE(Reverse - 1, Reverse);
|
||||
EXPECT_GT(Reverse + 1, Reverse);
|
||||
EXPECT_GE(Reverse, Reverse);
|
||||
EXPECT_GE(Reverse + 1, Reverse);
|
||||
|
||||
// Dereference
|
||||
SetToZero();
|
||||
EXPECT_EQ(*Forward, 0);
|
||||
EXPECT_EQ(*Reverse, 0);
|
||||
|
||||
// Indexing
|
||||
SetToZero();
|
||||
EXPECT_EQ(Forward[2], 2);
|
||||
EXPECT_EQ(Reverse[2], -2);
|
||||
|
||||
// Pre-increment
|
||||
SetToZero();
|
||||
++Forward;
|
||||
EXPECT_EQ(*Forward, 1);
|
||||
++Reverse;
|
||||
EXPECT_EQ(*Reverse, -1);
|
||||
|
||||
// Pre-decrement
|
||||
SetToZero();
|
||||
--Forward;
|
||||
EXPECT_EQ(*Forward, -1);
|
||||
--Reverse;
|
||||
EXPECT_EQ(*Reverse, 1);
|
||||
|
||||
// Post-increment
|
||||
SetToZero();
|
||||
EXPECT_EQ(*(Forward++), 0);
|
||||
EXPECT_EQ(*Forward, 1);
|
||||
EXPECT_EQ(*(Reverse++), 0);
|
||||
EXPECT_EQ(*Reverse, -1);
|
||||
|
||||
// Post-decrement
|
||||
SetToZero();
|
||||
EXPECT_EQ(*(Forward--), 0);
|
||||
EXPECT_EQ(*Forward, -1);
|
||||
EXPECT_EQ(*(Reverse--), 0);
|
||||
EXPECT_EQ(*Reverse, 1);
|
||||
|
||||
// Compound assignment operators
|
||||
SetToZero();
|
||||
Forward += 1;
|
||||
EXPECT_EQ(*Forward, 1);
|
||||
Reverse += 1;
|
||||
EXPECT_EQ(*Reverse, -1);
|
||||
SetToZero();
|
||||
Forward -= 2;
|
||||
EXPECT_EQ(*Forward, -2);
|
||||
Reverse -= 2;
|
||||
EXPECT_EQ(*Reverse, 2);
|
||||
|
||||
// Arithmetic
|
||||
SetToZero();
|
||||
EXPECT_EQ(*(Forward + 3), 3);
|
||||
EXPECT_EQ(*(Reverse + 3), -3);
|
||||
SetToZero();
|
||||
EXPECT_EQ(*(Forward - 4), -4);
|
||||
EXPECT_EQ(*(Reverse - 4), 4);
|
||||
|
||||
// Difference
|
||||
SetToZero();
|
||||
EXPECT_EQ(Forward - Forward, 0);
|
||||
EXPECT_EQ(Reverse - Reverse, 0);
|
||||
EXPECT_EQ((Forward + 1) - Forward, 1);
|
||||
EXPECT_EQ(Forward - (Forward + 1), -1);
|
||||
EXPECT_EQ((Reverse + 1) - Reverse, 1);
|
||||
EXPECT_EQ(Reverse - (Reverse + 1), -1);
|
||||
}
|
||||
|
||||
TEST(SequenceTest, Iteration) {
|
||||
EXPECT_THAT(seq(-4, 5), ElementsAre(-4, -3, -2, -1, 0, 1, 2, 3, 4));
|
||||
EXPECT_THAT(reverse(seq(-4, 5)), ElementsAre(4, 3, 2, 1, 0, -1, -2, -3, -4));
|
||||
|
||||
EXPECT_THAT(seq_inclusive(-4, 5),
|
||||
ElementsAre(-4, -3, -2, -1, 0, 1, 2, 3, 4, 5));
|
||||
EXPECT_THAT(reverse(seq_inclusive(-4, 5)),
|
||||
ElementsAre(5, 4, 3, 2, 1, 0, -1, -2, -3, -4));
|
||||
}
|
||||
|
||||
TEST(SequenceTest, Distance) {
|
||||
|
||||
@ -18,7 +18,7 @@ using namespace llvm;
|
||||
namespace {
|
||||
|
||||
TEST(ScalableVectorMVTsTest, IntegerMVTs) {
|
||||
for (auto VecTy : MVT::integer_scalable_vector_valuetypes()) {
|
||||
for (MVT VecTy : MVT::integer_scalable_vector_valuetypes()) {
|
||||
ASSERT_TRUE(VecTy.isValid());
|
||||
ASSERT_TRUE(VecTy.isInteger());
|
||||
ASSERT_TRUE(VecTy.isVector());
|
||||
@ -30,7 +30,7 @@ TEST(ScalableVectorMVTsTest, IntegerMVTs) {
|
||||
}
|
||||
|
||||
TEST(ScalableVectorMVTsTest, FloatMVTs) {
|
||||
for (auto VecTy : MVT::fp_scalable_vector_valuetypes()) {
|
||||
for (MVT VecTy : MVT::fp_scalable_vector_valuetypes()) {
|
||||
ASSERT_TRUE(VecTy.isValid());
|
||||
ASSERT_TRUE(VecTy.isFloatingPoint());
|
||||
ASSERT_TRUE(VecTy.isVector());
|
||||
|
||||
@ -1551,9 +1551,9 @@ void ICmpTestImpl(CmpInst::Predicate Pred) {
|
||||
}
|
||||
|
||||
TEST(ConstantRange, ICmp) {
|
||||
for (auto Pred : seq<unsigned>(CmpInst::Predicate::FIRST_ICMP_PREDICATE,
|
||||
1 + CmpInst::Predicate::LAST_ICMP_PREDICATE))
|
||||
ICmpTestImpl((CmpInst::Predicate)Pred);
|
||||
for (auto Pred : seq_inclusive(CmpInst::Predicate::FIRST_ICMP_PREDICATE,
|
||||
CmpInst::Predicate::LAST_ICMP_PREDICATE))
|
||||
ICmpTestImpl(Pred);
|
||||
}
|
||||
|
||||
TEST(ConstantRange, MakeGuaranteedNoWrapRegion) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user