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      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 #include "change_operand_reduction_opportunity.h"
     16 
     17 namespace spvtools {
     18 namespace reduce {
     19 
     20 bool ChangeOperandReductionOpportunity::PreconditionHolds() {
     21   // Check that the instruction still has the original operand.
     22   return inst_->NumOperands() > operand_index_ &&
     23          inst_->GetOperand(operand_index_).words[0] == original_id_ &&
     24          inst_->GetOperand(operand_index_).type == original_type_;
     25 }
     26 
     27 void ChangeOperandReductionOpportunity::Apply() {
     28   inst_->SetOperand(operand_index_, {new_id_});
     29 }
     30 
     31 }  // namespace reduce
     32 }  // namespace spvtools
     33