chromium/third_party/spirv-tools/src/source/opt/liveness.cpp

// Copyright (c) 2022 The Khronos Group Inc.
// Copyright (c) 2022 LunarG 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/liveness.h"

#include "source/opt/ir_context.h"

namespace spvtools {
namespace opt {
namespace analysis {
namespace {
constexpr uint32_t kDecorationLocationInIdx = …;
constexpr uint32_t kOpDecorateMemberMemberInIdx = …;
constexpr uint32_t kOpDecorateMemberLocationInIdx = …;
constexpr uint32_t kOpDecorateBuiltInLiteralInIdx = …;
constexpr uint32_t kOpDecorateMemberBuiltInLiteralInIdx = …;
}  // namespace

LivenessManager::LivenessManager(IRContext* ctx) : … { … }

void LivenessManager::InitializeAnalysis() { … }

bool LivenessManager::IsAnalyzedBuiltin(uint32_t bi) { … }

bool LivenessManager::AnalyzeBuiltIn(uint32_t id) { … }

void LivenessManager::MarkLocsLive(uint32_t start, uint32_t count) { … }

uint32_t LivenessManager::GetLocSize(const analysis::Type* type) const { … }

uint32_t LivenessManager::GetComponentType(uint32_t index,
                                           uint32_t agg_type_id) const { … }

uint32_t LivenessManager::GetLocOffset(uint32_t index,
                                       uint32_t agg_type_id) const { … }

uint32_t LivenessManager::AnalyzeAccessChainLoc(const Instruction* ac,
                                                uint32_t curr_type_id,
                                                uint32_t* offset, bool* no_loc,
                                                bool is_patch, bool input) { … }

void LivenessManager::MarkRefLive(const Instruction* ref, Instruction* var) { … }

void LivenessManager::ComputeLiveness() { … }

void LivenessManager::GetLiveness(std::unordered_set<uint32_t>* live_locs,
                                  std::unordered_set<uint32_t>* live_builtins) { … }

}  // namespace analysis
}  // namespace opt
}  // namespace spvtools