158 lines
5.5 KiB
C++
158 lines
5.5 KiB
C++
// Copyright 2023 The Tint Authors.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef SRC_TINT_CONSTANT_MANAGER_H_
|
|
#define SRC_TINT_CONSTANT_MANAGER_H_
|
|
|
|
#include <utility>
|
|
|
|
#include "src/tint/constant/value.h"
|
|
#include "src/tint/number.h"
|
|
#include "src/tint/type/manager.h"
|
|
#include "src/tint/utils/hash.h"
|
|
#include "src/tint/utils/unique_allocator.h"
|
|
|
|
namespace tint::constant {
|
|
class Splat;
|
|
|
|
template <typename T>
|
|
class Scalar;
|
|
} // namespace tint::constant
|
|
|
|
namespace tint::constant {
|
|
|
|
/// The constant manager holds a type manager and all the pointers to the known constant values.
|
|
class Manager final {
|
|
public:
|
|
/// Iterator is the type returned by begin() and end()
|
|
using TypeIterator = utils::BlockAllocator<Value>::ConstIterator;
|
|
|
|
/// Constructor
|
|
Manager();
|
|
|
|
/// Move constructor
|
|
Manager(Manager&&);
|
|
|
|
/// Move assignment operator
|
|
/// @param rhs the Manager to move
|
|
/// @return this Manager
|
|
Manager& operator=(Manager&& rhs);
|
|
|
|
/// Destructor
|
|
~Manager();
|
|
|
|
/// Wrap returns a new Manager created with the constants and types of `inner`.
|
|
/// The Manager returned by Wrap is intended to temporarily extend the constants and types of an
|
|
/// existing immutable Manager. As the copied constants and types are owned by `inner`, `inner`
|
|
/// must not be destructed or assigned while using the returned Manager.
|
|
/// TODO(bclayton) - Evaluate whether there are safer alternatives to this
|
|
/// function. See crbug.com/tint/460.
|
|
/// @param inner the immutable Manager to extend
|
|
/// @return the Manager that wraps `inner`
|
|
static Manager Wrap(const Manager& inner) {
|
|
Manager out;
|
|
out.values_.Wrap(inner.values_);
|
|
out.types = type::Manager::Wrap(inner.types);
|
|
return out;
|
|
}
|
|
|
|
/// @param args the arguments used to construct the type, unique node or node.
|
|
/// @return a pointer to an instance of `T` with the provided arguments.
|
|
/// If NODE derives from UniqueNode and an existing instance of `T` has been
|
|
/// constructed, then the same pointer is returned.
|
|
template <typename NODE, typename... ARGS>
|
|
NODE* Get(ARGS&&... args) {
|
|
return values_.Get<NODE>(std::forward<ARGS>(args)...);
|
|
}
|
|
|
|
/// @returns an iterator to the beginning of the types
|
|
TypeIterator begin() const { return values_.begin(); }
|
|
/// @returns an iterator to the end of the types
|
|
TypeIterator end() const { return values_.end(); }
|
|
|
|
/// Constructs a constant of a vector, matrix or array type.
|
|
///
|
|
/// Examines the element values and will return either a constant::Composite or a
|
|
/// constant::Splat, depending on the element types and values.
|
|
///
|
|
/// @param type the composite type
|
|
/// @param elements the composite elements
|
|
/// @returns the value pointer
|
|
const constant::Value* Composite(const type::Type* type,
|
|
utils::VectorRef<const constant::Value*> elements);
|
|
|
|
/// Constructs a splat constant.
|
|
/// @param type the splat type
|
|
/// @param element the splat element
|
|
/// @param n the number of elements
|
|
/// @returns the value pointer
|
|
const constant::Splat* Splat(const type::Type* type, const constant::Value* element, size_t n);
|
|
|
|
/// @param value the constant value
|
|
/// @return a Scalar holding the i32 value @p value
|
|
const Scalar<i32>* Get(i32 value);
|
|
|
|
/// @param value the constant value
|
|
/// @return a Scalar holding the u32 value @p value
|
|
const Scalar<u32>* Get(u32 value);
|
|
|
|
/// @param value the constant value
|
|
/// @return a Scalar holding the f32 value @p value
|
|
const Scalar<f32>* Get(f32 value);
|
|
|
|
/// @param value the constant value
|
|
/// @return a Scalar holding the f16 value @p value
|
|
const Scalar<f16>* Get(f16 value);
|
|
|
|
/// @param value the constant value
|
|
/// @return a Scalar holding the bool value @p value
|
|
const Scalar<bool>* Get(bool value);
|
|
|
|
/// @param value the constant value
|
|
/// @return a Scalar holding the AFloat value @p value
|
|
const Scalar<AFloat>* Get(AFloat value);
|
|
|
|
/// @param value the constant value
|
|
/// @return a Scalar holding the AInt value @p value
|
|
const Scalar<AInt>* Get(AInt value);
|
|
|
|
/// The type manager
|
|
type::Manager types;
|
|
|
|
private:
|
|
/// A specialization of utils::Hasher for constant::Value
|
|
struct Hasher {
|
|
/// @param value the value to hash
|
|
/// @returns a hash of the value
|
|
size_t operator()(const constant::Value& value) const { return value.Hash(); }
|
|
};
|
|
|
|
/// An equality helper for constant::Value
|
|
struct Equal {
|
|
/// @param a the LHS value
|
|
/// @param b the RHS value
|
|
/// @returns true if the two constants are equal
|
|
bool operator()(const constant::Value& a, const constant::Value& b) const {
|
|
return a.Equal(&b);
|
|
}
|
|
};
|
|
|
|
/// Unique types owned by the manager
|
|
utils::UniqueAllocator<Value, Hasher, Equal> values_;
|
|
};
|
|
|
|
} // namespace tint::constant
|
|
|
|
#endif // SRC_TINT_CONSTANT_MANAGER_H_
|