fold.cpp | Explore in Territory

// Copyright (c) 2017 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.

#include "source/opt/fold.h"

#include <cassert>
#include <cstdint>
#include <vector>

#include "source/opt/const_folding_rules.h"
#include "source/opt/def_use_manager.h"
#include "source/opt/folding_rules.h"
#include "source/opt/ir_context.h"

namespace spvtools {
namespace opt {
namespace {

#ifndef INT32_MIN
#define INT32_MIN …
#endif

#ifndef INT32_MAX
#define INT32_MAX …
#endif

#ifndef UINT32_MAX
#define UINT32_MAX …
#endif

}  // namespace

uint32_t InstructionFolder::UnaryOperate(spv::Op opcode,
                                         uint32_t operand) const { … }

uint32_t InstructionFolder::BinaryOperate(spv::Op opcode, uint32_t a,
                                          uint32_t b) const { … }

uint32_t InstructionFolder::TernaryOperate(spv::Op opcode, uint32_t a,
                                           uint32_t b, uint32_t c) const { … }

uint32_t InstructionFolder::OperateWords(
    spv::Op opcode, const std::vector<uint32_t>& operand_words) const { … }

bool InstructionFolder::FoldInstructionInternal(Instruction* inst) const { … }

// Returns the result of performing an operation on scalar constant operands.
// This function extracts the operand values as 32 bit words and returns the
// result in 32 bit word. Scalar constants with longer than 32-bit width are
// not accepted in this function.
uint32_t InstructionFolder::FoldScalars(
    spv::Op opcode,
    const std::vector<const analysis::Constant*>& operands) const { … }

bool InstructionFolder::FoldBinaryIntegerOpToConstant(
    Instruction* inst, const std::function<uint32_t(uint32_t)>& id_map,
    uint32_t* result) const { … }

bool InstructionFolder::FoldBinaryBooleanOpToConstant(
    Instruction* inst, const std::function<uint32_t(uint32_t)>& id_map,
    uint32_t* result) const { … }

bool InstructionFolder::FoldIntegerOpToConstant(
    Instruction* inst, const std::function<uint32_t(uint32_t)>& id_map,
    uint32_t* result) const { … }

std::vector<uint32_t> InstructionFolder::FoldVectors(
    spv::Op opcode, uint32_t num_dims,
    const std::vector<const analysis::Constant*>& operands) const { … }

bool InstructionFolder::IsFoldableOpcode(spv::Op opcode) const { … }

bool InstructionFolder::IsFoldableConstant(
    const analysis::Constant* cst) const { … }

Instruction* InstructionFolder::FoldInstructionToConstant(
    Instruction* inst, std::function<uint32_t(uint32_t)> id_map) const { … }

bool InstructionFolder::IsFoldableType(Instruction* type_inst) const { … }

bool InstructionFolder::IsFoldableScalarType(Instruction* type_inst) const { … }

bool InstructionFolder::IsFoldableVectorType(Instruction* type_inst) const { … }

bool InstructionFolder::FoldInstruction(Instruction* inst) const { … }

}  // namespace opt
}  // namespace spvtools
chromium/third_party/spirv-tools/src/source/opt/fold.cpp
