rte_cmp_x86.h

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2015 Intel Corporation
 */
 
#include <rte_vect.h>
 
/* Function to compare multiple of 16 byte keys */
static inline int
rte_hash_k16_cmp_eq(const void *key1, const void *key2, size_t key_len __rte_unused)
{
    const __m128i k1 = _mm_loadu_si128((const __m128i *) key1);
    const __m128i k2 = _mm_loadu_si128((const __m128i *) key2);
    const __m128i x = _mm_xor_si128(k1, k2);
 
    return !_mm_test_all_zeros(x, x);
}
 
static inline int
rte_hash_k32_cmp_eq(const void *key1, const void *key2, size_t key_len __rte_unused)
{
    return rte_hash_k16_cmp_eq(key1, key2, 16) |
        rte_hash_k16_cmp_eq((const uint8_t *) key1 + 16,
                    (const uint8_t *) key2 + 16, 16);
}