chore: import upstream snapshot with attribution

2026-07-13 12:40:42 +08:00
commit e25996e7db
15472 changed files with 3536181 additions and 0 deletions
@@ -0,0 +1,75 @@
+// Copyright (c) 2025 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/random_kernel.h"
+
+#include <random>
+
+#include "paddle/phi/backends/cpu/cpu_context.h"
+#include "paddle/phi/core/kernel_registry.h"
+#include "paddle/phi/kernels/funcs/distribution_helper.h"
+
+namespace phi {
+template <typename T, typename Context>
+void RandomKernel(const Context& dev_ctx,
+                  const DenseTensor& x,
+                  int64_t from,
+                  int64_t to,
+                  DenseTensor* out) {
+  out->Resize(x.dims());
+  T* data = dev_ctx.template Alloc<T>(out);
+  int64_t size = out->numel();
+  std::shared_ptr<std::mt19937_64> engine =
+      dev_ctx.GetGenerator()->GetCPUEngine();
+
+  if constexpr (std::is_floating_point<T>::value ||
+                std::is_same<T, float16>::value ||
+                std::is_same<T, bfloat16>::value) {
+    from = update_from<T>(from);
+    to = update_to<T>(to);
+
+    PADDLE_ENFORCE_LT(from,
+                      to,
+                      common::errors::InvalidArgument(
+                          "random expects 'from' casted to dtype to be less "
+                          "than 'to' casted to dtype, but got from=%d >= to=%d",
+                          from,
+                          to));
+  }
+  uint64_t range = static_cast<uint64_t>(to) - static_cast<uint64_t>(from);
+  if (range >= 1ULL << 28) {
+    funcs::uniform_int_from_to_distribution<T, uint64_t> random(range, from);
+    for (int64_t i = 0; i < size; ++i) {
+      data[i] = random(engine->operator()());
+    }
+  } else {
+    funcs::uniform_int_from_to_distribution<T, uint32_t> random(range, from);
+    for (int64_t i = 0; i < size; ++i) {
+      data[i] = random(static_cast<uint32_t>(engine->operator()()));
+    }
+  }
+}
+
+}  // namespace phi
+
+PD_REGISTER_KERNEL(random,
+                   CPU,
+                   ALL_LAYOUT,
+                   phi::RandomKernel,
+                   int,
+                   int64_t,
+                   float,
+                   double,
+                   phi::float16,
+                   phi::bfloat16) {}