55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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// This provides utility macros and functions that are inherently platform
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// specific.
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#ifndef TENSORFLOW_LITE_CORE_MACROS_H_
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#define TENSORFLOW_LITE_CORE_MACROS_H_
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#ifdef __has_builtin
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#define TFLITE_HAS_BUILTIN(x) __has_builtin(x)
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#else
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#define TFLITE_HAS_BUILTIN(x) 0
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#endif
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#if (!defined(__NVCC__)) && (TFLITE_HAS_BUILTIN(__builtin_expect) || \
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(defined(__GNUC__) && __GNUC__ >= 3))
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#define TFLITE_EXPECT_FALSE(cond) __builtin_expect(cond, false)
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#define TFLITE_EXPECT_TRUE(cond) __builtin_expect(!!(cond), true)
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#else
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#define TFLITE_EXPECT_FALSE(cond) (cond)
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#define TFLITE_EXPECT_TRUE(cond) (cond)
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#endif
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// Normally we'd use ABSL_HAVE_ATTRIBUTE_WEAK and ABSL_ATTRIBUTE_WEAK, but
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// we avoid the absl dependency for binary size reasons.
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#ifdef __has_attribute
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#define TFLITE_HAS_ATTRIBUTE(x) __has_attribute(x)
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#else
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#define TFLITE_HAS_ATTRIBUTE(x) 0
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#endif
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#if (TFLITE_HAS_ATTRIBUTE(weak) || \
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(defined(__GNUC__) && !defined(__clang__))) && \
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!(defined(__llvm__) && defined(_WIN32)) && !defined(__MINGW32__)
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#undef TFLITE_ATTRIBUTE_WEAK
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#define TFLITE_ATTRIBUTE_WEAK __attribute__((weak))
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#define TFLITE_HAS_ATTRIBUTE_WEAK 1
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#else
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#define TFLITE_ATTRIBUTE_WEAK
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#define TFLITE_HAS_ATTRIBUTE_WEAK 0
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#endif
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#endif // TENSORFLOW_LITE_CORE_MACROS_H_
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