1 /*
2 * Copyright (c) Meta Platforms, Inc. and affiliates.
3 * All rights reserved.
4 *
5 * This source code is licensed under the BSD-style license found in the
6 * LICENSE file in the root directory of this source tree.
7 */
8
9 #include <executorch/kernels/portable/cpu/pattern/pattern.h>
10 #include <executorch/kernels/portable/cpu/util/functional_util.h>
11 #include <executorch/runtime/kernel/kernel_includes.h>
12
13 namespace torch {
14 namespace executor {
15 namespace native {
16 namespace internal {
17
unary_ufunc_realhbbf16_to_floathbf16(double (* fn)(double),KernelRuntimeContext & ctx,const Tensor & in,Tensor & out)18 Tensor& unary_ufunc_realhbbf16_to_floathbf16(
19 double (*fn)(double),
20 KernelRuntimeContext& ctx,
21 const Tensor& in,
22 Tensor& out) {
23 (void)ctx;
24
25 ET_KERNEL_CHECK(ctx, tensor_is_floating_type(out), InvalidArgument, out);
26
27 // Resize for dynamic shape
28 ET_KERNEL_CHECK_MSG(
29 ctx,
30 resize_tensor(out, in.sizes()) == Error::Ok,
31 InvalidArgument,
32 out,
33 "Failed to resize output tensor.");
34
35 ET_KERNEL_CHECK(
36 ctx, tensors_have_same_dim_order(in, out), InvalidArgument, out);
37
38 const auto in_type = in.scalar_type();
39 const auto out_type = out.scalar_type();
40
41 ET_SWITCH_REALHBBF16_TYPES(in_type, ctx, __func__, CTYPE_IN, [&] {
42 ET_SWITCH_FLOATHBF16_TYPES(out_type, ctx, __func__, CTYPE_OUT, [&] {
43 apply_unary_map_fn(
44 [fn](const CTYPE_IN val_in) {
45 CTYPE_OUT xi = static_cast<CTYPE_OUT>(val_in);
46 return static_cast<CTYPE_OUT>(fn(xi));
47 },
48 in.const_data_ptr<CTYPE_IN>(),
49 out.mutable_data_ptr<CTYPE_OUT>(),
50 in.numel());
51 });
52 });
53
54 return out;
55 }
56
57 } // namespace internal
58 } // namespace native
59 } // namespace executor
60 } // namespace torch
61