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// Copyright (c) 2024, ARM Limited.
//
// 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 "half.hpp"
#include "verifiers.h"
namespace
{
template <typename Datatype>
bool compliant(const double& referenceValue, const Datatype& implementationValue)
{
// Compliant when values are both nans OR when values are both finite/infinite and have the same sign
return (std::isnan(referenceValue) && std::isnan(implementationValue)) ||
(std::isnan(referenceValue) == std::isnan(implementationValue) &&
std::isfinite(referenceValue) == std::isfinite(implementationValue) &&
std::signbit(referenceValue) == std::signbit(implementationValue));
}
template <>
bool compliant(const double& referenceValue, const half_float::half& implementationValue)
{
// Compliant when values are both nans OR when values are both finite/infinite and have the same sign
return (std::isnan(referenceValue) && half_float::isnan(implementationValue)) ||
(std::isnan(referenceValue) == half_float::isnan(implementationValue) &&
std::isfinite(referenceValue) == half_float::isfinite(implementationValue) &&
std::signbit(referenceValue) == half_float::signbit(implementationValue));
}
template <typename Datatype>
bool verify(const double* refData,
const double* refDataEnd,
Datatype* impData,
const int64_t elementCount,
const std::vector<int32_t> refShape)
{
auto pair = std::mismatch(refData, refDataEnd, impData, std::next(impData, elementCount),
[](const double& referenceValue, const Datatype& implementationValue) {
return compliant(referenceValue, implementationValue);
});
if (std::get<0>(pair) == refDataEnd)
{
// No mismatch found
return true;
}
else
{
auto pos = TosaReference::indexToPosition(std::get<0>(pair) - refData, refShape);
WARNING("[Verfier][FS] Location %s", TosaReference::positionToString(pos).c_str());
return false;
}
}
} // namespace
namespace TosaReference
{
bool verifyFpSpecial(const CTensor* referenceTensor, const CTensor* implementationTensor)
{
// Validate that tensors are provided
TOSA_REF_REQUIRE(referenceTensor != nullptr, "[FS] Reference tensor is missing");
TOSA_REF_REQUIRE(implementationTensor != nullptr, "[FS] Implementation tensor is missing");
// Get number of elements
const std::vector<int32_t> refShape(referenceTensor->shape, referenceTensor->shape + referenceTensor->num_dims);
const auto elementCount = numElements(refShape);
TOSA_REF_REQUIRE(elementCount > 0, "[FS] Invalid shape for reference tensor");
TOSA_REF_REQUIRE(referenceTensor->data_type == tosa_datatype_fp64_t, "[FS] Reference tensor is not fp64");
const auto* refData = reinterpret_cast<const double*>(referenceTensor->data);
TOSA_REF_REQUIRE(refData != nullptr, "[FS] Missing data for reference");
const auto* refDataEnd = std::next(refData, elementCount);
switch (implementationTensor->data_type)
{
case tosa_datatype_fp32_t: {
const auto* impData = reinterpret_cast<const float*>(implementationTensor->data);
TOSA_REF_REQUIRE(impData != nullptr, "[FS] Missing data for implementation");
return verify(refData, refDataEnd, impData, elementCount, refShape);
}
case tosa_datatype_fp16_t: {
const auto* impData = reinterpret_cast<const half_float::half*>(implementationTensor->data);
TOSA_REF_REQUIRE(impData != nullptr, "[FS] Missing data for implementation");
return verify(refData, refDataEnd, impData, elementCount, refShape);
}
default:
WARNING("[Verifier][FS] Data-type not supported.");
break;
}
return false;
}
} // namespace TosaReference
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