gcc/config/aarch64/tuning_models/thunderx.h

   1 /* Tuning model description for AArch64 architecture.
   2    Copyright (C) 2009-2025 Free Software Foundation, Inc.
   3
   4    This file is part of GCC.
   5
   6    GCC is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3, or (at your option)
   9    any later version.
  10
  11    GCC is distributed in the hope that it will be useful, but
  12    WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GCC; see the file COPYING3.  If not see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef GCC_AARCH64_H_THUNDERX
  21 #define GCC_AARCH64_H_THUNDERX
  22
  23 #include "generic.h"
  24
  25 static const struct cpu_regmove_cost thunderx_regmove_cost =
  26 {
  27   2, /* GP2GP  */
  28   2, /* GP2FP  */
  29   6, /* FP2GP  */
  30   4 /* FP2FP  */
  31 };
  32
  33 static const advsimd_vec_cost thunderx_advsimd_vector_cost =
  34 {
  35   4, /* int_stmt_cost  */
  36   1, /* fp_stmt_cost  */
  37   0, /* ld2_st2_permute_cost  */
  38   0, /* ld3_st3_permute_cost  */
  39   0, /* ld4_st4_permute_cost  */
  40   4, /* permute_cost  */
  41   2, /* reduc_i8_cost  */
  42   2, /* reduc_i16_cost  */
  43   2, /* reduc_i32_cost  */
  44   2, /* reduc_i64_cost  */
  45   2, /* reduc_f16_cost  */
  46   2, /* reduc_f32_cost  */
  47   2, /* reduc_f64_cost  */
  48   2, /* store_elt_extra_cost  */
  49   2, /* vec_to_scalar_cost  */
  50   2, /* scalar_to_vec_cost  */
  51   3, /* align_load_cost  */
  52   5, /* unalign_load_cost  */
  53   5, /* unalign_store_cost  */
  54   1  /* store_cost  */
  55 };
  56
  57 /* ThunderX costs for vector insn classes.  */
  58 static const struct cpu_vector_cost thunderx_vector_cost =
  59 {
  60   1, /* scalar_int_stmt_cost  */
  61   1, /* scalar_fp_stmt_cost  */
  62   3, /* scalar_load_cost  */
  63   1, /* scalar_store_cost  */
  64   3, /* cond_taken_branch_cost  */
  65   3, /* cond_not_taken_branch_cost  */
  66   &thunderx_advsimd_vector_cost, /* advsimd  */
  67   nullptr, /* sve  */
  68   nullptr /* issue_info  */
  69 };
  70
  71 static const cpu_prefetch_tune thunderx_prefetch_tune =
  72 {
  73   8,                    /* num_slots  */
  74   32,                   /* l1_cache_size  */
  75   128,                  /* l1_cache_line_size  */
  76   -1,                   /* l2_cache_size  */
  77   true,                 /* prefetch_dynamic_strides */
  78   -1,                   /* minimum_stride */
  79   -1                    /* default_opt_level  */
  80 };
  81
  82 static const struct tune_params thunderx_tunings =
  83 {
  84   &thunderx_extra_costs,
  85   &generic_addrcost_table,
  86   &thunderx_regmove_cost,
  87   &thunderx_vector_cost,
  88   &generic_branch_cost,
  89   &generic_approx_modes,
  90   SVE_NOT_IMPLEMENTED, /* sve_width  */
  91   { 6, /* load_int.  */
  92     6, /* store_int.  */
  93     6, /* load_fp.  */
  94     6, /* store_fp.  */
  95     6, /* load_pred.  */
  96     6 /* store_pred.  */
  97   }, /* memmov_cost.  */
  98   2, /* issue_rate  */
  99   AARCH64_FUSE_ALU_BRANCH, /* fusible_ops  */
 100   "8",  /* function_align.  */
 101   "8",  /* jump_align.  */
 102   "8",  /* loop_align.  */
 103   2,    /* int_reassoc_width.  */
 104   4,    /* fp_reassoc_width.  */
 105   1,    /* fma_reassoc_width.  */
 106   1,    /* vec_reassoc_width.  */
 107   2,    /* min_div_recip_mul_sf.  */
 108   2,    /* min_div_recip_mul_df.  */
 109   0,    /* max_case_values.  */
 110   tune_params::AUTOPREFETCHER_OFF,      /* autoprefetcher_model.  */
 111   (AARCH64_EXTRA_TUNE_CHEAP_SHIFT_EXTEND),      /* tune_flags.  */
 112   &thunderx_prefetch_tune,
 113   AARCH64_LDP_STP_POLICY_ALIGNED,   /* ldp_policy_model.  */
 114   AARCH64_LDP_STP_POLICY_ALIGNED    /* stp_policy_model.  */
 115 };
 116
 117 #endif /* GCC_AARCH64_H_THUNDERX.  */