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_REDUCE_REDUCTION_UTIL_H_ 16 #define SOURCE_REDUCE_REDUCTION_UTIL_H_ 17 18 #include "spirv-tools/libspirv.hpp" 19 20 #include "source/opt/ir_context.h" 21 #include "source/reduce/reduction_opportunity.h" 22 23 namespace spvtools { 24 namespace reduce { 25 26 extern const uint32_t kTrueBranchOperandIndex; 27 extern const uint32_t kFalseBranchOperandIndex; 28 29 // Returns an OpUndef id from the global value list that is of the given type, 30 // adding one if it does not exist. 31 uint32_t FindOrCreateGlobalUndef(opt::IRContext* context, uint32_t type_id); 32 33 // Removes any components of |to_block|'s phi instructions relating to 34 // |from_id|. 35 void AdaptPhiInstructionsForRemovedEdge(uint32_t from_id, 36 opt::BasicBlock* to_block); 37 38 } // namespace reduce 39 } // namespace spvtools 40 41 #endif // SOURCE_REDUCE_REDUCTION_UTIL_H_ 42