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https://github.com/KhronosGroup/SPIRV-Tools
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5dcb576b69
Motivated by integrating spirv-reduce into spirv-fuzz, so that an added function can be made smaller during shrinking, this adds support in spirv-reduce for asking reduction to be restricted to the instructions of a single specified function.
51 lines
1.7 KiB
C++
51 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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#include "source/reduce/remove_function_reduction_opportunity_finder.h"
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#include "source/reduce/remove_function_reduction_opportunity.h"
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namespace spvtools {
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namespace reduce {
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std::vector<std::unique_ptr<ReductionOpportunity>>
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RemoveFunctionReductionOpportunityFinder::GetAvailableOpportunities(
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opt::IRContext* context, uint32_t target_function) const {
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if (target_function) {
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// If we are targeting a specific function then we are only interested in
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// opportunities that simplify the internals of that function; removing
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// whole functions does not fit the bill.
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return {};
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}
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std::vector<std::unique_ptr<ReductionOpportunity>> result;
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// Consider each function.
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for (auto& function : *context->module()) {
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if (context->get_def_use_mgr()->NumUses(function.result_id()) > 0) {
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// If the function is referenced, ignore it.
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continue;
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}
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result.push_back(
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MakeUnique<RemoveFunctionReductionOpportunity>(context, &function));
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}
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return result;
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}
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std::string RemoveFunctionReductionOpportunityFinder::GetName() const {
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return "RemoveFunctionReductionOpportunityFinder";
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}
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} // namespace reduce
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} // namespace spvtools
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