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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 "generate_fp_special.h"
#include "half.hpp"
#include <map>
namespace
{
class SpecialValue
{
public:
enum SpecialValsEnum
{
Zero,
Inf,
NaN,
Min,
Max,
One,
};
SpecialValue() = default;
SpecialValue(SpecialValsEnum v)
: value(v)
{}
operator SpecialValsEnum() const
{
return value;
}
SpecialValue& operator=(SpecialValsEnum v)
{
value = v;
return *this;
}
bool operator==(const SpecialValsEnum v) const
{
return value == v;
}
bool operator!=(const SpecialValsEnum v) const
{
return value != v;
}
SpecialValue operator-()
{
negative = !negative;
return *this;
}
template <typename DataType>
DataType evaluate()
{
switch (value)
{
case Zero:
return static_cast<DataType>(negative ? -0.0 : 0.0);
case Inf:
return negative ? -std::numeric_limits<DataType>::infinity()
: std::numeric_limits<DataType>::infinity();
case NaN:
return std::numeric_limits<DataType>::quiet_NaN();
case Min:
return negative ? -std::numeric_limits<DataType>::min() : std::numeric_limits<DataType>::min();
case Max:
return negative ? -std::numeric_limits<DataType>::max() : std::numeric_limits<DataType>::max();
case One:
return static_cast<DataType>(negative ? -1.0 : 1.0);
default:
WARNING("[Generator][FS] Uninitialised special value.");
return static_cast<DataType>(0.0);
}
}
private:
SpecialValsEnum value;
bool negative = false;
};
/*
Test vals format
I: Number of inputs to an op - referenced by cfg.inputPos
T: Number of test cases defined for the op
vector of test inputs: {
vector of values for test 0: { valueForinputPos0, valueForinputPos1, ..., valueForinputPosI-1 },
vector of values for test 1: { valueForinputPos0, valueForinputPos1, ..., valueForinputPosI-1 },
...
vector of values for test T-1: { valueForinputPos0, valueForinputPos1, ..., valueForinputPosI-1 },
}
*/
using TestValues = std::vector<std::vector<SpecialValue>>;
TestValues equalOpsTestVals{ { SpecialValue(SpecialValue::Zero), -SpecialValue(SpecialValue::Zero) },
{ SpecialValue(SpecialValue::Inf), -SpecialValue(SpecialValue::Inf) } };
TestValues addTestVals{ { SpecialValue(SpecialValue::Max), SpecialValue(SpecialValue::One) },
{ SpecialValue(SpecialValue::Inf), -SpecialValue(SpecialValue::Inf) } };
TestValues defaultTestVals{ { SpecialValue(SpecialValue::Zero) }, { -SpecialValue(SpecialValue::Zero) },
{ SpecialValue(SpecialValue::Inf) }, { -SpecialValue(SpecialValue::Inf) },
{ SpecialValue(SpecialValue::NaN) }, { SpecialValue(SpecialValue::Min) },
{ SpecialValue(SpecialValue::Max) } };
std::map<Op, TestValues> testValues = { { Op::Op_EQUAL, equalOpsTestVals },
{ Op::Op_GREATER, equalOpsTestVals },
{ Op::Op_GREATER_EQUAL, equalOpsTestVals },
{ Op::Op_ADD, addTestVals } };
template <typename DataType>
bool generate(const TosaReference::GenerateConfig& cfg, DataType* data, size_t size)
{
const TosaReference::FpSpecialInfo& fsinfo = cfg.fpSpecialInfo;
uint8_t startIndex = fsinfo.startIndex;
std::vector<DataType> values;
auto testValuesResult = testValues.find(cfg.opType);
TestValues opTestVals = defaultTestVals;
size_t inputIndex = 0;
if (testValuesResult != testValues.end())
{
// When an op has an entry in testValues we use its op specific special test values, otherwise default values are used
opTestVals = testValuesResult->second;
inputIndex = cfg.inputPos;
}
for (std::vector<SpecialValue> inputs : opTestVals)
{
values.push_back(inputs[inputIndex].evaluate<DataType>());
}
const auto T = TosaReference::numElementsFromShape(cfg.shape);
for (auto t = 0; t < T; ++t)
{
data[t] = values[(t + startIndex) % values.size()];
}
return true;
}
} // namespace
namespace TosaReference
{
bool generateFpSpecial(const GenerateConfig& cfg, void* data, size_t size)
{
// Check we support the operator
if (cfg.opType == Op::Op_UNKNOWN)
{
WARNING("[Generator][FS] Unknown operator.");
return false;
}
switch (cfg.dataType)
{
case DType::DType_FP16: {
half_float::half* outData = reinterpret_cast<half_float::half*>(data);
return generate(cfg, outData, size);
}
case DType::DType_FP32: {
float* outData = reinterpret_cast<float*>(data);
return generate(cfg, outData, size);
}
default:
WARNING("[Generator][FS] Unsupported type.");
return false;
}
}
} // namespace TosaReference
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