1 // Copyright (c) 2022 The Khronos Group Inc. 2 // Copyright (c) 2022 LunarG Inc. 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 16 #ifndef SOURCE_OPT_ANALYZE_LIVE_INPUT_H_ 17 #define SOURCE_OPT_ANALYZE_LIVE_INPUT_H_ 18 19 #include <unordered_set> 20 21 #include "source/opt/pass.h" 22 23 namespace spvtools { 24 namespace opt { 25 26 // See optimizer.hpp for documentation. 27 class AnalyzeLiveInputPass : public Pass { 28 public: AnalyzeLiveInputPass(std::unordered_set<uint32_t> * live_locs,std::unordered_set<uint32_t> * live_builtins)29 explicit AnalyzeLiveInputPass(std::unordered_set<uint32_t>* live_locs, 30 std::unordered_set<uint32_t>* live_builtins) 31 : live_locs_(live_locs), live_builtins_(live_builtins) {} 32 name()33 const char* name() const override { return "analyze-live-input"; } 34 Status Process() override; 35 36 // Return the mask of preserved Analyses. GetPreservedAnalyses()37 IRContext::Analysis GetPreservedAnalyses() override { 38 return IRContext::kAnalysisDefUse | 39 IRContext::kAnalysisInstrToBlockMapping | 40 IRContext::kAnalysisCombinators | IRContext::kAnalysisCFG | 41 IRContext::kAnalysisDominatorAnalysis | 42 IRContext::kAnalysisLoopAnalysis | IRContext::kAnalysisNameMap | 43 IRContext::kAnalysisConstants | IRContext::kAnalysisTypes; 44 } 45 46 private: 47 // Do live input analysis 48 Status DoLiveInputAnalysis(); 49 50 std::unordered_set<uint32_t>* live_locs_; 51 std::unordered_set<uint32_t>* live_builtins_; 52 }; 53 54 } // namespace opt 55 } // namespace spvtools 56 57 #endif // SOURCE_OPT_ANALYZE_LIVE_INPUT_H_ 58