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f0d110e305
Some reduction opportunities don't invalidate all analyses. This PR fixes the situation (although we might invalidate more analyses than required).
36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
// Copyright (c) 2018 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/change_operand_reduction_opportunity.h"
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#include "source/opt/ir_context.h"
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namespace spvtools {
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namespace reduce {
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bool ChangeOperandReductionOpportunity::PreconditionHolds() {
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// Check that the instruction still has the original operand.
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return inst_->NumOperands() > operand_index_ &&
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inst_->GetOperand(operand_index_).words[0] == original_id_ &&
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inst_->GetOperand(operand_index_).type == original_type_;
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}
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void ChangeOperandReductionOpportunity::Apply() {
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inst_->SetOperand(operand_index_, {new_id_});
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inst_->context()->get_def_use_mgr()->UpdateDefUse(inst_);
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}
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} // namespace reduce
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} // namespace spvtools
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