chromium/third_party/spirv-tools/src/source/reduce/remove_unused_instruction_reduction_opportunity_finder.h

// 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.

#ifndef SOURCE_REDUCE_REMOVE_UNREFERENCED_INSTRUCTION_REDUCTION_OPPORTUNITY_FINDER_H_
#define SOURCE_REDUCE_REMOVE_UNREFERENCED_INSTRUCTION_REDUCTION_OPPORTUNITY_FINDER_H_

#include "source/reduce/reduction_opportunity_finder.h"

namespace spvtools {
namespace reduce {

// A finder for opportunities to remove non-control-flow instructions in blocks
// in cases where the instruction's id is either not referenced at all, or
// referenced only in a trivial manner (for example, we regard a struct type as
// unused if it is referenced only by struct layout decorations).  As well as
// making the module smaller, removing an instruction that references particular
// ids may create opportunities for subsequently removing the instructions that
// generated those ids.
class RemoveUnusedInstructionReductionOpportunityFinder
    : public ReductionOpportunityFinder { … };

}  // namespace reduce
}  // namespace spvtools

#endif  // SOURCE_REDUCE_REMOVE_UNREFERENCED_INSTRUCTION_REDUCTION_OPPORTUNITY_FINDER_H_