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paddlepaddle--paddle/paddle/phi/kernels/cpu/unique_consecutive_kernel.cc
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2026-07-13 12:40:42 +08:00

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// Copyright (c) 2022 PaddlePaddle Authors. 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 <climits>
#include "paddle/phi/kernels/cpu/unique_consecutive_functor.h"
#include "paddle/phi/kernels/unique_consecutive_kernel.h"
#include "paddle/common/errors.h"
#include "paddle/phi/backends/cpu/cpu_context.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/core/utils/data_type.h"
namespace phi {
template <typename T, typename Context>
void UniqueConsecutiveKernel(const Context& dev_ctx,
const DenseTensor& x,
bool return_inverse,
bool return_counts,
const std::vector<int>& axis,
DataType dtype,
DenseTensor* out,
DenseTensor* index,
DenseTensor* counts) {
if (dtype == DataType::INT32) {
PADDLE_ENFORCE_LE(
x.numel(),
INT_MAX,
common::errors::InvalidArgument(
"The number of elements in Input(X) should be less than or "
"equal to INT_MAX, but received num is %d. Please set `dtype` to "
"int64.",
x.numel()));
}
if (axis.empty()) {
VisitDataTypeTiny(
dtype,
UniqueConsecutiveFlattenedTensorFunctor<Context, T>(
dev_ctx, x, out, return_inverse, return_counts, index, counts));
} else {
int valid_axis = axis[0];
if (valid_axis < 0) valid_axis += x.dims().size();
VisitDataTypeTiny(dtype,
UniqueConsecutiveDimFunctor<Context, T>(dev_ctx,
x,
out,
valid_axis,
return_inverse,
return_counts,
index,
counts));
}
}
} // namespace phi
PD_REGISTER_KERNEL(unique_consecutive,
CPU,
ALL_LAYOUT,
phi::UniqueConsecutiveKernel,
float,
double,
int32_t,
int64_t) {
kernel->OutputAt(1).SetDataType(kernel_key.dtype());
kernel->OutputAt(2).SetDataType(kernel_key.dtype());
}