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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
/**
* @file
* Branch Prediction Helpers in RTE
*/
#ifndef _RTE_BRANCH_PREDICTION_H_
#define _RTE_BRANCH_PREDICTION_H_
/**
* Check if a branch is likely to be taken.
*
* This compiler builtin allows the developer to indicate if a branch is
* likely to be taken. Example:
*
* if (likely(x > 1))
* do_stuff();
*
*/
#ifndef likely
#define likely(x) __builtin_expect(!!(x), 1)
#endif /* likely */
/**
* Check if a branch is unlikely to be taken.
*
* This compiler builtin allows the developer to indicate if a branch is
* unlikely to be taken. Example:
*
* if (unlikely(x < 1))
* do_stuff();
*
*/
#ifndef unlikely
#define unlikely(x) __builtin_expect(!!(x), 0)
#endif /* unlikely */
#endif /* _RTE_BRANCH_PREDICTION_H_ */
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