mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-25 04:50:04 +00:00
129 lines
4.3 KiB
C++
129 lines
4.3 KiB
C++
// Copyright (c) 2015-2016 The Khronos Group 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_VAL_INSTRUCTION_H_
|
|
#define LIBSPIRV_VAL_INSTRUCTION_H_
|
|
|
|
#include <cassert>
|
|
#include <cstdint>
|
|
#include <functional>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "spirv-tools/libspirv.h"
|
|
#include "table.h"
|
|
|
|
namespace libspirv {
|
|
|
|
class BasicBlock;
|
|
class Function;
|
|
|
|
/// Wraps the spv_parsed_instruction struct along with use and definition of the
|
|
/// instruction's result id
|
|
class Instruction {
|
|
public:
|
|
explicit Instruction(const spv_parsed_instruction_t* inst,
|
|
Function* defining_function = nullptr,
|
|
BasicBlock* defining_block = nullptr);
|
|
|
|
/// Registers the use of the Instruction in instruction \p inst at \p index
|
|
void RegisterUse(const Instruction* inst, uint32_t index);
|
|
|
|
uint32_t id() const { return inst_.result_id; }
|
|
uint32_t type_id() const { return inst_.type_id; }
|
|
SpvOp opcode() const { return static_cast<SpvOp>(inst_.opcode); }
|
|
|
|
/// Returns the Function where the instruction was defined. nullptr if it was
|
|
/// defined outside of a Function
|
|
const Function* function() const { return function_; }
|
|
|
|
/// Returns the BasicBlock where the instruction was defined. nullptr if it
|
|
/// was defined outside of a BasicBlock
|
|
const BasicBlock* block() const { return block_; }
|
|
|
|
/// Returns a vector of pairs of all references to this instruction's result
|
|
/// id. The first element is the instruction in which this result id was
|
|
/// referenced and the second is the index of the word in that instruction
|
|
/// where this result id appeared
|
|
const std::vector<std::pair<const Instruction*, uint32_t>>& uses() const {
|
|
return uses_;
|
|
}
|
|
|
|
/// The word used to define the Instruction
|
|
uint32_t word(size_t index) const { return words_[index]; }
|
|
|
|
/// The words used to define the Instruction
|
|
const std::vector<uint32_t>& words() const { return words_; }
|
|
|
|
/// The operands of the Instruction
|
|
const std::vector<spv_parsed_operand_t>& operands() const {
|
|
return operands_;
|
|
}
|
|
|
|
/// Provides direct access to the stored C instruction object.
|
|
const spv_parsed_instruction_t& c_inst() const {
|
|
return inst_;
|
|
}
|
|
|
|
// Casts the words belonging to the operand under |index| to |T| and returns.
|
|
template <typename T>
|
|
T GetOperandAs(size_t index) const {
|
|
const spv_parsed_operand_t& operand = operands_.at(index);
|
|
assert(operand.num_words * 4 >= sizeof(T));
|
|
assert(operand.offset + operand.num_words <= inst_.num_words);
|
|
return *reinterpret_cast<const T*>(&words_[operand.offset]);
|
|
}
|
|
|
|
private:
|
|
const std::vector<uint32_t> words_;
|
|
const std::vector<spv_parsed_operand_t> operands_;
|
|
spv_parsed_instruction_t inst_;
|
|
|
|
/// The function in which this instruction was declared
|
|
Function* function_;
|
|
|
|
/// The basic block in which this instruction was declared
|
|
BasicBlock* block_;
|
|
|
|
/// This is a vector of pairs of all references to this instruction's result
|
|
/// id. The first element is the instruction in which this result id was
|
|
/// referenced and the second is the index of the word in the referencing
|
|
/// instruction where this instruction appeared
|
|
std::vector<std::pair<const Instruction*, uint32_t>> uses_;
|
|
};
|
|
|
|
#define OPERATOR(OP) \
|
|
bool operator OP(const Instruction& lhs, const Instruction& rhs); \
|
|
bool operator OP(const Instruction& lhs, uint32_t rhs)
|
|
|
|
OPERATOR(<);
|
|
OPERATOR(==);
|
|
#undef OPERATOR
|
|
|
|
} // namespace libspirv
|
|
|
|
// custom specialization of std::hash for Instruction
|
|
namespace std {
|
|
template <>
|
|
struct hash<libspirv::Instruction> {
|
|
typedef libspirv::Instruction argument_type;
|
|
typedef std::size_t result_type;
|
|
result_type operator()(const argument_type& inst) const {
|
|
return hash<uint32_t>()(inst.id());
|
|
}
|
|
};
|
|
} /// namespace std
|
|
|
|
#endif // LIBSPIRV_VAL_INSTRUCTION_H_
|