xref: /aosp_15_r20/external/tensorflow/tensorflow/lite/kernels/internal/optimized/neon_check.h (revision b6fb3261f9314811a0f4371741dbb8839866f948)
1 /* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
2 
3 Licensed under the Apache License, Version 2.0 (the "License");
4 you may not use this file except in compliance with the License.
5 You may obtain a copy of the License at
6 
7     http://www.apache.org/licenses/LICENSE-2.0
8 
9 Unless required by applicable law or agreed to in writing, software
10 distributed under the License is distributed on an "AS IS" BASIS,
11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 See the License for the specific language governing permissions and
13 limitations under the License.
14 ==============================================================================*/
15 #ifndef TENSORFLOW_LITE_KERNELS_INTERNAL_OPTIMIZED_NEON_CHECK_H_
16 #define TENSORFLOW_LITE_KERNELS_INTERNAL_OPTIMIZED_NEON_CHECK_H_
17 
18 #if defined(__ARM_NEON__) || defined(__ARM_NEON)
19 #define USE_NEON
20 #include <arm_neon.h>
21 #endif
22 
23 #if defined __GNUC__ && defined __SSE4_1__ && !defined TF_LITE_DISABLE_X86_NEON
24 #define USE_NEON
25 #include "NEON_2_SSE.h"
26 #if defined vld1q_lane_u64
27 #undef vld1q_lane_u64
28 // TODO(b/240305641): workaround a bug in the arm_neon_sse.h header, this can be
29 // removed after https://github.com/intel/ARM_NEON_2_x86_SSE/pull/60 is merged
30 // upstream.
31 #define vld1q_lane_u64(ptr, vec, lane) _MM_INSERT_EPI64(vec, *(ptr), lane)
32 #endif
33 #endif
34 
35 // NEON_OR_PORTABLE(SomeFunc, args) calls NeonSomeFunc(args) if USE_NEON is
36 // defined, PortableSomeFunc(args) otherwise.
37 #ifdef USE_NEON
38 // Always use Neon code
39 #define NEON_OR_PORTABLE(funcname, ...) Neon##funcname(__VA_ARGS__)
40 
41 #else
42 // No NEON available: Use Portable code
43 #define NEON_OR_PORTABLE(funcname, ...) Portable##funcname(__VA_ARGS__)
44 
45 #endif  // defined(USE_NEON)
46 
47 #endif  // TENSORFLOW_LITE_KERNELS_INTERNAL_OPTIMIZED_NEON_CHECK_H_
48