1 // Copyright (c) 2018 Google LLC. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef SOURCE_OPT_LOOP_UNROLLER_H_ 16 #define SOURCE_OPT_LOOP_UNROLLER_H_ 17 18 #include "source/opt/pass.h" 19 20 namespace spvtools { 21 namespace opt { 22 23 class LoopUnroller : public Pass { 24 public: 25 LoopUnroller() : Pass(), fully_unroll_(true), unroll_factor_(0) {} 26 LoopUnroller(bool fully_unroll, int unroll_factor) 27 : Pass(), fully_unroll_(fully_unroll), unroll_factor_(unroll_factor) {} 28 29 const char* name() const override { return "loop-unroll"; } 30 31 Status Process() override; 32 33 IRContext::Analysis GetPreservedAnalyses() override { 34 return IRContext::kAnalysisDefUse | 35 IRContext::kAnalysisInstrToBlockMapping | 36 IRContext::kAnalysisDecorations | IRContext::kAnalysisCombinators | 37 IRContext::kAnalysisNameMap | IRContext::kAnalysisConstants | 38 IRContext::kAnalysisTypes; 39 } 40 41 private: 42 bool fully_unroll_; 43 int unroll_factor_; 44 }; 45 46 } // namespace opt 47 } // namespace spvtools 48 49 #endif // SOURCE_OPT_LOOP_UNROLLER_H_ 50
