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https://github.com/KhronosGroup/SPIRV-Tools
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4aeadc0199
Add a spirv-reduce pass which removes OpName and OpMemberName instructions. This is useful to enable other reduction passes, e.g. RemoveUnreferencedInstruction may not be able to remove an instruction creating an id whose only usage is an OpName for this id.
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// Copyright (c) 2018 Google Inc.
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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 "remove_opname_instruction_reduction_pass.h"
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#include "remove_instruction_reduction_opportunity.h"
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#include "source/opcode.h"
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#include "source/opt/instruction.h"
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namespace spvtools {
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namespace reduce {
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using namespace opt;
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std::vector<std::unique_ptr<ReductionOpportunity>>
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RemoveOpNameInstructionReductionPass::GetAvailableOpportunities(
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opt::IRContext* context) const {
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std::vector<std::unique_ptr<ReductionOpportunity>> result;
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for (auto& inst : context->module()->debugs2()) {
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if (inst.opcode() == SpvOpName || inst.opcode() == SpvOpMemberName) {
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result.push_back(
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MakeUnique<RemoveInstructionReductionOpportunity>(&inst));
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}
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}
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return result;
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}
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std::string RemoveOpNameInstructionReductionPass::GetName() const {
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return "RemoveOpNameInstructionReductionPass";
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}
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} // namespace reduce
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} // namespace spvtools
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