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https://github.com/KhronosGroup/SPIRV-Tools
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54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
// Copyright (c) 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SOURCE_FUZZ_FACT_MANAGER_DEAD_BLOCK_FACTS_H_
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#define SOURCE_FUZZ_FACT_MANAGER_DEAD_BLOCK_FACTS_H_
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#include <unordered_set>
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#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
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#include "source/opt/ir_context.h"
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namespace spvtools {
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namespace fuzz {
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namespace fact_manager {
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// The purpose of this class is to group the fields and data used to represent
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// facts about data blocks.
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class DeadBlockFacts {
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public:
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explicit DeadBlockFacts(opt::IRContext* ir_context);
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// Marks |fact.block_id()| as being dead. Returns true if |fact.block_id()|
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// represents a result id of some OpLabel instruction in |ir_context_|.
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// Returns false otherwise.
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bool MaybeAddFact(const protobufs::FactBlockIsDead& fact);
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// See method in FactManager which delegates to this method.
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bool BlockIsDead(uint32_t block_id) const;
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// Returns a set of all the block ids that have been declared dead.
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const std::unordered_set<uint32_t>& GetDeadBlocks() const;
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private:
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std::unordered_set<uint32_t> dead_block_ids_;
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opt::IRContext* ir_context_;
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};
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} // namespace fact_manager
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} // namespace fuzz
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} // namespace spvtools
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#endif // SOURCE_FUZZ_FACT_MANAGER_DEAD_BLOCK_FACTS_H_
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