chromium/third_party/spirv-tools/src/source/reduce/structured_loop_to_selection_reduction_opportunity.cpp

// Copyright (c) 2018 Google LLC
//
// 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/reduce/structured_loop_to_selection_reduction_opportunity.h"

#include "source/opt/aggressive_dead_code_elim_pass.h"
#include "source/opt/ir_context.h"
#include "source/reduce/reduction_util.h"

namespace spvtools {
namespace reduce {

namespace {
const uint32_t kMergeNodeIndex = …;
}  // namespace

bool StructuredLoopToSelectionReductionOpportunity::PreconditionHolds() { … }

void StructuredLoopToSelectionReductionOpportunity::Apply() { … }

void StructuredLoopToSelectionReductionOpportunity::RedirectToClosestMergeBlock(
    uint32_t original_target_id) { … }

void StructuredLoopToSelectionReductionOpportunity::RedirectEdge(
    uint32_t source_id, uint32_t original_target_id, uint32_t new_target_id) { … }

void StructuredLoopToSelectionReductionOpportunity::
    AdaptPhiInstructionsForAddedEdge(uint32_t from_id,
                                     opt::BasicBlock* to_block) { … }

void StructuredLoopToSelectionReductionOpportunity::ChangeLoopToSelection() { … }

void StructuredLoopToSelectionReductionOpportunity::FixNonDominatedIdUses() { … }

bool StructuredLoopToSelectionReductionOpportunity::
    DefinitionSufficientlyDominatesUse(opt::Instruction* def,
                                       opt::Instruction* use,
                                       uint32_t use_index,
                                       opt::BasicBlock& def_block) { … }

}  // namespace reduce
}  // namespace spvtools