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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "TFLTypeInferenceRule.h"
#include "Dialect/IR/TFLDialect.h"
#include "Dialect/IR/TFLNodeVisitor.h"
#include "Dialect/IR/TFLNodes.h"
#include <cassert>
namespace
{
struct TypeInferenceAlgorithm final : public locoex::TFLNodeVisitor<loco::DataType>
{
loco::DataType visit(const locoex::TFLAdd *node) final { return loco::dtype_get(node->x()); }
loco::DataType visit(const locoex::TFLAveragePool2D *node) final
{
return loco::dtype_get(node->value());
}
loco::DataType visit(const locoex::TFLConcatenation *node) final
{
// TODO Support when TFLConcatenation has 0 input
assert(node->numValues() > 0);
for (uint32_t i = 1; i < node->numValues(); ++i)
assert(loco::dtype_get(node->values(i - 1)) == loco::dtype_get(node->values(i)));
return loco::dtype_get(node->values(0));
}
loco::DataType visit(const locoex::TFLConst *node) final { return node->dtype(); }
loco::DataType visit(const locoex::TFLConv2D *node) final
{
return loco::dtype_get(node->input());
}
loco::DataType visit(const locoex::TFLDepthwiseConv2D *node) final
{
return loco::dtype_get(node->input());
}
loco::DataType visit(const locoex::TFLDiv *node) final { return loco::dtype_get(node->x()); }
loco::DataType visit(const locoex::TFLFullyConnected *node) final
{
return loco::dtype_get(node->input());
}
loco::DataType visit(const locoex::TFLMaximum *node) final { return loco::dtype_get(node->x()); }
loco::DataType visit(const locoex::TFLMaxPool2D *node) final
{
return loco::dtype_get(node->value());
}
loco::DataType visit(const locoex::TFLMean *node) final { return loco::dtype_get(node->input()); }
loco::DataType visit(const locoex::TFLMul *node) final { return loco::dtype_get(node->x()); }
loco::DataType visit(const locoex::TFLRelu *node) final
{
return loco::dtype_get(node->features());
}
loco::DataType visit(const locoex::TFLRelu6 *node) final
{
return loco::dtype_get(node->features());
}
loco::DataType visit(const locoex::TFLReshape *node) final
{
return loco::dtype_get(node->tensor());
}
loco::DataType visit(const locoex::TFLRsqrt *node) final { return loco::dtype_get(node->x()); }
// TODO TFLSoftmax
loco::DataType visit(const locoex::TFLSqrt *node) final { return loco::dtype_get(node->x()); }
loco::DataType visit(const locoex::TFLSquaredDifference *node) final
{
return loco::dtype_get(node->x());
}
loco::DataType visit(const locoex::TFLSub *node) final { return loco::dtype_get(node->x()); }
// TODO TFLTanh
loco::DataType visit(const locoex::TFLTranspose *node) final
{
return loco::dtype_get(node->a());
}
loco::DataType visit(const locoex::TFLTransposeConv *node) final
{
return loco::dtype_get(node->outBackprop());
}
};
} // namespace
namespace locoex
{
bool TFLTypeInferenceRule::recognize(const loco::Dialect *d) const
{
return TFLDialect::get() == d;
}
bool TFLTypeInferenceRule::infer(const loco::Node *node, loco::DataType &dtype) const
{
assert(node->dialect() == TFLDialect::get());
TypeInferenceAlgorithm alg;
dtype = dynamic_cast<const TFLNode *>(node)->accept(&alg);
assert(dtype != loco::DataType::Unknown);
return true;
}
} // namespace locoex
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