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https://github.com/KhronosGroup/SPIRV-Tools
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66a682b6a8
In this PR, the classes that represent the swap commutable operands transformation and the fuzzer pass were implemented. Fixes #3205.
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
// Copyright (c) 2020 André Perez Maselco
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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/fuzz/transformation_swap_commutable_operands.h"
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#include "source/fuzz/fuzzer_util.h"
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#include "source/fuzz/instruction_descriptor.h"
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namespace spvtools {
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namespace fuzz {
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TransformationSwapCommutableOperands::TransformationSwapCommutableOperands(
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const spvtools::fuzz::protobufs::TransformationSwapCommutableOperands&
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message)
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: message_(message) {}
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TransformationSwapCommutableOperands::TransformationSwapCommutableOperands(
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const protobufs::InstructionDescriptor& instruction_descriptor) {
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*message_.mutable_instruction_descriptor() = instruction_descriptor;
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}
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bool TransformationSwapCommutableOperands::IsApplicable(
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opt::IRContext* context, const spvtools::fuzz::FactManager& /*unused*/
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) const {
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auto instruction =
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FindInstruction(message_.instruction_descriptor(), context);
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if (instruction == nullptr) return false;
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SpvOp opcode = static_cast<SpvOp>(
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message_.instruction_descriptor().target_instruction_opcode());
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assert(instruction->opcode() == opcode &&
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"The located instruction must have the same opcode as in the "
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"descriptor.");
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return spvOpcodeIsCommutativeBinaryOperator(opcode);
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}
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void TransformationSwapCommutableOperands::Apply(
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opt::IRContext* context, spvtools::fuzz::FactManager* /*unused*/
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) const {
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auto instruction =
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FindInstruction(message_.instruction_descriptor(), context);
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// By design, the instructions defined to be commutative have exactly two
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// input parameters.
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std::swap(instruction->GetInOperand(0), instruction->GetInOperand(1));
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}
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protobufs::Transformation TransformationSwapCommutableOperands::ToMessage()
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const {
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protobufs::Transformation result;
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*result.mutable_swap_commutable_operands() = message_;
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return result;
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}
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} // namespace fuzz
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} // namespace spvtools
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