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d35a78db57
Fixes #4960 * Switches to using enum classes with an underlying type to avoid undefined behaviour
69 lines
2.5 KiB
C++
69 lines
2.5 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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protobufs::TransformationSwapCommutableOperands message)
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: message_(std::move(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* ir_context, const TransformationContext& /*unused*/) const {
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auto instruction =
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FindInstruction(message_.instruction_descriptor(), ir_context);
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if (instruction == nullptr) return false;
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spv::Op opcode = static_cast<spv::Op>(
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message_.instruction_descriptor().target_instruction_opcode());
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assert(spv::Op(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* ir_context, TransformationContext* /*unused*/) const {
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auto instruction =
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FindInstruction(message_.instruction_descriptor(), ir_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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std::unordered_set<uint32_t> TransformationSwapCommutableOperands::GetFreshIds()
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const {
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return std::unordered_set<uint32_t>();
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}
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} // namespace fuzz
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} // namespace spvtools
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