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f0d110e305
Some reduction opportunities don't invalidate all analyses. This PR fixes the situation (although we might invalidate more analyses than required).
49 lines
1.5 KiB
C++
49 lines
1.5 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_REDUCE_REMOVE_BLOCK_REDUCTION_OPPORTUNITY_H_
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#define SOURCE_REDUCE_REMOVE_BLOCK_REDUCTION_OPPORTUNITY_H_
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#include "source/opt/basic_block.h"
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#include "source/opt/function.h"
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#include "source/reduce/reduction_opportunity.h"
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namespace spvtools {
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namespace reduce {
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// An opportunity to remove an unreferenced block.
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// See RemoveBlockReductionOpportunityFinder.
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class RemoveBlockReductionOpportunity : public ReductionOpportunity {
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public:
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// Creates the opportunity to remove |block| in |function| in |context|.
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RemoveBlockReductionOpportunity(opt::IRContext* context,
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opt::Function* function,
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opt::BasicBlock* block);
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bool PreconditionHolds() override;
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protected:
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void Apply() override;
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private:
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opt::IRContext* context_;
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opt::Function* function_;
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opt::BasicBlock* block_;
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};
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} // namespace reduce
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} // namespace spvtools
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#endif // SOURCE_REDUCE_REMOVE_BLOCK_REDUCTION_OPPORTUNITY_H_
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