chore: import upstream snapshot with attribution

paddle/phi/kernels/sparse/cpu/addmm_kernel.cc

@@ -0,0 +1,65 @@
+/* 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 "paddle/phi/kernels/sparse/addmm_kernel.h"
+
+#include "paddle/phi/backends/cpu/cpu_context.h"
+#include "paddle/phi/core/kernel_registry.h"
+namespace phi::sparse {
+
+/* DENSE + COO @ DENSE -> DENSE */
+template <typename T, typename Context>
+void AddmmCooDenseKernel(const Context& dev_ctx UNUSED,
+                         const DenseTensor& input UNUSED,
+                         const SparseCooTensor& x UNUSED,
+                         const DenseTensor& y UNUSED,
+                         float beta UNUSED,
+                         float alpha UNUSED,
+                         DenseTensor* out UNUSED) {
+  PADDLE_THROW(common::errors::Unimplemented(
+      "Not support CPU kernel of 'sparse.addmm' now."));
+}
+
+/* DENSE + CSR @ DENSE -> DENSE */
+template <typename T, typename Context>
+void AddmmCsrDenseKernel(const Context& dev_ctx UNUSED,
+                         const DenseTensor& input UNUSED,
+                         const SparseCsrTensor& x UNUSED,
+                         const DenseTensor& y UNUSED,
+                         float beta UNUSED,
+                         float alpha UNUSED,
+                         DenseTensor* out UNUSED) {
+  PADDLE_THROW(common::errors::Unimplemented(
+      "Not support CPU kernel of 'sparse.addmm' now."));
+}
+
+}  // namespace phi::sparse
+
+PD_REGISTER_KERNEL(addmm_coo_dense,
+                   CPU,
+                   ALL_LAYOUT,
+                   phi::sparse::AddmmCooDenseKernel,
+                   float,
+                   double) {
+  kernel->InputAt(0).SetDataLayout(phi::DataLayout::SPARSE_COO);
+}
+
+PD_REGISTER_KERNEL(addmm_csr_dense,
+                   CPU,
+                   ALL_LAYOUT,
+                   phi::sparse::AddmmCsrDenseKernel,
+                   float,
+                   double) {
+  kernel->InputAt(0).SetDataLayout(phi::DataLayout::SPARSE_CSR);
+}