text: /* SPDX-License-Identifier: BSD-3-Clause
   * Copyright (c) 2010-2022 Intel Corporation
   */
  
  #ifndef _CNE_ACL_VECT_H_
  #define _CNE_ACL_VECT_H_
  
  /**
   * @file
   *
   * ACL SSE/AVX related header.
   */
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /*
   * Takes 2 SIMD registers containing N transitions each (tr0, tr1).
   * Shuffles it into different representation:
   * lo - contains low 32 bits of given N transitions.
   * hi - contains high 32 bits of given N transitions.
   */
  #define ACL_TR_HILO(P, TC, tr0, tr1, lo, hi)                            \
      do {                                                                \
          lo = (typeof(lo))_##P##_shuffle_ps((TC)(tr0), (TC)(tr1), 0x88); \
          hi = (typeof(hi))_##P##_shuffle_ps((TC)(tr0), (TC)(tr1), 0xdd); \
      } while (0)
  
  /*
   * Calculate the address of the next transition for
   * all types of nodes. Note that only DFA nodes and range
   * nodes actually transition to another node. Match
   * nodes not supposed to be encountered here.
   * For quad range nodes:
   * Calculate number of range boundaries that are less than the
   * input value. Range boundaries for each node are in signed 8 bit,
   * ordered from -128 to 127.
   * This is effectively a popcnt of bytes that are greater than the
   * input byte.
   * Single nodes are processed in the same ways as quad range nodes.
   */
  #define ACL_TR_CALC_ADDR(P, S, addr, index_mask, next_input, shuffle_input, ones_16, range_base, \
                           tr_lo, tr_hi)                                                           \
      do {                                                                                         \
                                                                                                   \
          typeof(addr) in, node_type, r, t;                                                        \
          typeof(addr) dfa_msk, dfa_ofs, quad_ofs;                                                 \
                                                                                                   \
          t  = _##P##_xor_si##S(index_mask, index_mask);                                           \
          in = _##P##_shuffle_epi8(next_input, shuffle_input);                                     \
                                                                                                   \
          /* Calc node type and node addr */                                                       \
          node_type = _##P##_andnot_si##S(index_mask, tr_lo);                                      \
          addr      = _##P##_and_si##S(index_mask, tr_lo);                                         \
                                                                                                   \
          /* mask for DFA type(0) nodes */                                                         \
          dfa_msk = _##P##_cmpeq_epi32(node_type, t);                                              \
                                                                                                   \
          /* DFA calculations. */                                                                  \
          r = _##P##_srli_epi32(in, 30);                                                           \
          r = _##P##_add_epi8(r, range_base);                                                      \
          t = _##P##_srli_epi32(in, 24);                                                           \
          r = _##P##_shuffle_epi8(tr_hi, r);                                                       \
                                                                                                   \
          dfa_ofs = _##P##_sub_epi32(t, r);                                                        \
                                                                                                   \
          /* QUAD/SINGLE calculations. */                                                          \
          t        = _##P##_cmpgt_epi8(in, tr_hi);                                                 \
          t        = _##P##_sign_epi8(t, t);                                                       \
          t        = _##P##_maddubs_epi16(t, t);                                                   \
          quad_ofs = _##P##_madd_epi16(t, ones_16);                                                \
                                                                                                   \
          /* blend DFA and QUAD/SINGLE. */                                                         \
          t = _##P##_blendv_epi8(quad_ofs, dfa_ofs, dfa_msk);                                      \
                                                                                                   \
          /* calculate address for next transitions. */                                            \
          addr = _##P##_add_epi32(addr, t);                                                        \
      } while (0)
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* _CNE_ACL_VECT_H_ */
  