mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-30 15:00:06 +00:00
292 lines
10 KiB
C++
292 lines
10 KiB
C++
// Copyright (c) 2016 Google Inc.
|
|
//
|
|
// 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 LIBSPIRV_OPT_CONSTANTS_H_
|
|
#define LIBSPIRV_OPT_CONSTANTS_H_
|
|
|
|
#include <memory>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "make_unique.h"
|
|
#include "types.h"
|
|
|
|
namespace spvtools {
|
|
namespace opt {
|
|
namespace analysis {
|
|
|
|
// Class hierarchy to represent the normal constants defined through
|
|
// OpConstantTrue, OpConstantFalse, OpConstant, OpConstantNull and
|
|
// OpConstantComposite instructions.
|
|
// TODO(qining): Add class for constants defined with OpConstantSampler.
|
|
class Constant;
|
|
class ScalarConstant;
|
|
class IntConstant;
|
|
class FloatConstant;
|
|
class BoolConstant;
|
|
class CompositeConstant;
|
|
class StructConstant;
|
|
class VectorConstant;
|
|
class ArrayConstant;
|
|
class NullConstant;
|
|
|
|
// Abstract class for a SPIR-V constant. It has a bunch of As<subclass> methods,
|
|
// which is used as a way to probe the actual <subclass>
|
|
class Constant {
|
|
public:
|
|
Constant() = delete;
|
|
virtual ~Constant() {}
|
|
|
|
// Make a deep copy of this constant.
|
|
virtual std::unique_ptr<Constant> Copy() const = 0;
|
|
|
|
// reflections
|
|
virtual ScalarConstant* AsScalarConstant() { return nullptr; }
|
|
virtual IntConstant* AsIntConstant() { return nullptr; }
|
|
virtual FloatConstant* AsFloatConstant() { return nullptr; }
|
|
virtual BoolConstant* AsBoolConstant() { return nullptr; }
|
|
virtual CompositeConstant* AsCompositeConstant() { return nullptr; }
|
|
virtual StructConstant* AsStructConstant() { return nullptr; }
|
|
virtual VectorConstant* AsVectorConstant() { return nullptr; }
|
|
virtual ArrayConstant* AsArrayConstant() { return nullptr; }
|
|
virtual NullConstant* AsNullConstant() { return nullptr; }
|
|
|
|
virtual const ScalarConstant* AsScalarConstant() const { return nullptr; }
|
|
virtual const IntConstant* AsIntConstant() const { return nullptr; }
|
|
virtual const FloatConstant* AsFloatConstant() const { return nullptr; }
|
|
virtual const BoolConstant* AsBoolConstant() const { return nullptr; }
|
|
virtual const CompositeConstant* AsCompositeConstant() const {
|
|
return nullptr;
|
|
}
|
|
virtual const StructConstant* AsStructConstant() const { return nullptr; }
|
|
virtual const VectorConstant* AsVectorConstant() const { return nullptr; }
|
|
virtual const ArrayConstant* AsArrayConstant() const { return nullptr; }
|
|
virtual const NullConstant* AsNullConstant() const { return nullptr; }
|
|
|
|
const analysis::Type* type() const { return type_; }
|
|
|
|
protected:
|
|
Constant(const analysis::Type* ty) : type_(ty) {}
|
|
|
|
// The type of this constant.
|
|
const analysis::Type* type_;
|
|
};
|
|
|
|
// Abstract class for scalar type constants.
|
|
class ScalarConstant : public Constant {
|
|
public:
|
|
ScalarConstant() = delete;
|
|
ScalarConstant* AsScalarConstant() override { return this; }
|
|
const ScalarConstant* AsScalarConstant() const override { return this; }
|
|
|
|
// Returns a const reference of the value of this constant in 32-bit words.
|
|
virtual const std::vector<uint32_t>& words() const { return words_; }
|
|
|
|
protected:
|
|
ScalarConstant(const analysis::Type* ty, const std::vector<uint32_t>& w)
|
|
: Constant(ty), words_(w) {}
|
|
ScalarConstant(const analysis::Type* ty, std::vector<uint32_t>&& w)
|
|
: Constant(ty), words_(std::move(w)) {}
|
|
std::vector<uint32_t> words_;
|
|
};
|
|
|
|
// Integer type constant.
|
|
class IntConstant : public ScalarConstant {
|
|
public:
|
|
IntConstant(const analysis::Integer* ty, const std::vector<uint32_t>& w)
|
|
: ScalarConstant(ty, w) {}
|
|
IntConstant(const analysis::Integer* ty, std::vector<uint32_t>&& w)
|
|
: ScalarConstant(ty, std::move(w)) {}
|
|
|
|
IntConstant* AsIntConstant() override { return this; }
|
|
const IntConstant* AsIntConstant() const override { return this; }
|
|
|
|
// Make a copy of this IntConstant instance.
|
|
std::unique_ptr<IntConstant> CopyIntConstant() const {
|
|
return MakeUnique<IntConstant>(type_->AsInteger(), words_);
|
|
}
|
|
std::unique_ptr<Constant> Copy() const override {
|
|
return std::unique_ptr<Constant>(CopyIntConstant().release());
|
|
}
|
|
};
|
|
|
|
// Float type constant.
|
|
class FloatConstant : public ScalarConstant {
|
|
public:
|
|
FloatConstant(const analysis::Float* ty, const std::vector<uint32_t>& w)
|
|
: ScalarConstant(ty, w) {}
|
|
FloatConstant(const analysis::Float* ty, std::vector<uint32_t>&& w)
|
|
: ScalarConstant(ty, std::move(w)) {}
|
|
|
|
FloatConstant* AsFloatConstant() override { return this; }
|
|
const FloatConstant* AsFloatConstant() const override { return this; }
|
|
|
|
// Make a copy of this FloatConstant instance.
|
|
std::unique_ptr<FloatConstant> CopyFloatConstant() const {
|
|
return MakeUnique<FloatConstant>(type_->AsFloat(), words_);
|
|
}
|
|
std::unique_ptr<Constant> Copy() const override {
|
|
return std::unique_ptr<Constant>(CopyFloatConstant().release());
|
|
}
|
|
};
|
|
|
|
// Bool type constant.
|
|
class BoolConstant : public ScalarConstant {
|
|
public:
|
|
BoolConstant(const analysis::Bool* ty, bool v)
|
|
: ScalarConstant(ty, {static_cast<uint32_t>(v)}), value_(v) {}
|
|
|
|
BoolConstant* AsBoolConstant() override { return this; }
|
|
const BoolConstant* AsBoolConstant() const override { return this; }
|
|
|
|
// Make a copy of this BoolConstant instance.
|
|
std::unique_ptr<BoolConstant> CopyBoolConstant() const {
|
|
return MakeUnique<BoolConstant>(type_->AsBool(), value_);
|
|
}
|
|
std::unique_ptr<Constant> Copy() const override {
|
|
return std::unique_ptr<Constant>(CopyBoolConstant().release());
|
|
}
|
|
|
|
bool value() const { return value_; }
|
|
|
|
private:
|
|
bool value_;
|
|
};
|
|
|
|
// Abstract class for composite constants.
|
|
class CompositeConstant : public Constant {
|
|
public:
|
|
CompositeConstant() = delete;
|
|
CompositeConstant* AsCompositeConstant() override { return this; }
|
|
const CompositeConstant* AsCompositeConstant() const override { return this; }
|
|
|
|
// Returns a const reference of the components holded in this composite
|
|
// constant.
|
|
virtual const std::vector<const Constant*>& GetComponents() const {
|
|
return components_;
|
|
}
|
|
|
|
protected:
|
|
CompositeConstant(const analysis::Type* ty) : Constant(ty), components_() {}
|
|
CompositeConstant(const analysis::Type* ty,
|
|
const std::vector<const Constant*>& components)
|
|
: Constant(ty), components_(components) {}
|
|
CompositeConstant(const analysis::Type* ty,
|
|
std::vector<const Constant*>&& components)
|
|
: Constant(ty), components_(std::move(components)) {}
|
|
std::vector<const Constant*> components_;
|
|
};
|
|
|
|
// Struct type constant.
|
|
class StructConstant : public CompositeConstant {
|
|
public:
|
|
StructConstant(const analysis::Struct* ty) : CompositeConstant(ty) {}
|
|
StructConstant(const analysis::Struct* ty,
|
|
const std::vector<const Constant*>& components)
|
|
: CompositeConstant(ty, components) {}
|
|
StructConstant(const analysis::Struct* ty,
|
|
std::vector<const Constant*>&& components)
|
|
: CompositeConstant(ty, std::move(components)) {}
|
|
|
|
StructConstant* AsStructConstant() override { return this; }
|
|
const StructConstant* AsStructConstant() const override { return this; }
|
|
|
|
// Make a copy of this StructConstant instance.
|
|
std::unique_ptr<StructConstant> CopyStructConstant() const {
|
|
return MakeUnique<StructConstant>(type_->AsStruct(), components_);
|
|
}
|
|
std::unique_ptr<Constant> Copy() const override {
|
|
return std::unique_ptr<Constant>(CopyStructConstant().release());
|
|
}
|
|
};
|
|
|
|
// Vector type constant.
|
|
class VectorConstant : public CompositeConstant {
|
|
public:
|
|
VectorConstant(const analysis::Vector* ty)
|
|
: CompositeConstant(ty), component_type_(ty->element_type()) {}
|
|
VectorConstant(const analysis::Vector* ty,
|
|
const std::vector<const Constant*>& components)
|
|
: CompositeConstant(ty, components),
|
|
component_type_(ty->element_type()) {}
|
|
VectorConstant(const analysis::Vector* ty,
|
|
std::vector<const Constant*>&& components)
|
|
: CompositeConstant(ty, std::move(components)),
|
|
component_type_(ty->element_type()) {}
|
|
|
|
VectorConstant* AsVectorConstant() override { return this; }
|
|
const VectorConstant* AsVectorConstant() const override { return this; }
|
|
|
|
// Make a copy of this VectorConstant instance.
|
|
std::unique_ptr<VectorConstant> CopyVectorConstant() const {
|
|
auto another = MakeUnique<VectorConstant>(type_->AsVector());
|
|
another->components_.insert(another->components_.end(), components_.begin(),
|
|
components_.end());
|
|
return another;
|
|
}
|
|
std::unique_ptr<Constant> Copy() const override {
|
|
return std::unique_ptr<Constant>(CopyVectorConstant().release());
|
|
}
|
|
|
|
const analysis::Type* component_type() { return component_type_; }
|
|
|
|
private:
|
|
const analysis::Type* component_type_;
|
|
};
|
|
|
|
// Array type constant.
|
|
class ArrayConstant : public CompositeConstant {
|
|
public:
|
|
ArrayConstant(const analysis::Array* ty) : CompositeConstant(ty) {}
|
|
ArrayConstant(const analysis::Array* ty,
|
|
const std::vector<const Constant*>& components)
|
|
: CompositeConstant(ty, components) {}
|
|
ArrayConstant(const analysis::Array* ty,
|
|
std::vector<const Constant*>&& components)
|
|
: CompositeConstant(ty, std::move(components)) {}
|
|
|
|
ArrayConstant* AsArrayConstant() override { return this; }
|
|
const ArrayConstant* AsArrayConstant() const override { return this; }
|
|
|
|
// Make a copy of this ArrayConstant instance.
|
|
std::unique_ptr<ArrayConstant> CopyArrayConstant() const {
|
|
return MakeUnique<ArrayConstant>(type_->AsArray(), components_);
|
|
}
|
|
std::unique_ptr<Constant> Copy() const override {
|
|
return std::unique_ptr<Constant>(CopyArrayConstant().release());
|
|
}
|
|
};
|
|
|
|
// Null type constant.
|
|
class NullConstant : public Constant {
|
|
public:
|
|
NullConstant(const analysis::Type* ty) : Constant(ty) {}
|
|
NullConstant* AsNullConstant() override { return this; }
|
|
const NullConstant* AsNullConstant() const override { return this; }
|
|
|
|
// Make a copy of this NullConstant instance.
|
|
std::unique_ptr<NullConstant> CopyNullConstant() const {
|
|
return MakeUnique<NullConstant>(type_);
|
|
}
|
|
std::unique_ptr<Constant> Copy() const override {
|
|
return std::unique_ptr<Constant>(CopyNullConstant().release());
|
|
}
|
|
};
|
|
|
|
} // namespace analysis
|
|
} // namespace opt
|
|
} // namespace spvtools
|
|
|
|
#endif // LIBSPIRV_OPT_CONSTANTS_H_
|