gcc/config/arm/exynos-m1.md

   1 ;; Samsung Exynos M1 pipeline description
   2 ;; Copyright (C) 2014-2024 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 (define_attr "exynos_m1_neon_type"
  21   "neon_arith_simple, neon_arith_basic, neon_arith_complex,
  22    neon_multiply, neon_mla, neon_mla_q, neon_mla_long, neon_sat_mla_long,
  23    neon_shift_acc, neon_shift_imm_basic, neon_shift_imm_complex,
  24    neon_shift_reg_basic, neon_shift_reg_basic_q,
  25    neon_shift_reg_complex, neon_shift_reg_complex_q,
  26    neon_fp_unary, neon_fp_add, neon_fp_abd, neon_fp_compare,
  27    neon_fp_reduc_minmax, neon_fp_reduc_add, neon_fp_round, neon_fp_cvt,
  28    neon_fp_minmax, neon_fp_mul, neon_fp_mul_q, neon_fp_mla, neon_fp_mla_q,
  29    neon_fp_estimate, neon_fp_estimatex, neon_fp_step,
  30    neon_bitops, neon_bitops_q, neon_bitins,
  31    neon_to_gp, neon_from_gp, neon_move, neon_tbl,
  32    neon_load1_1, neon_load1_2, neon_load1_3, neon_load1_4,
  33    neon_load1_one, neon_load1_all,
  34    neon_load2_2, neon_load2_one, neon_load2_all,
  35    neon_load3_3, neon_load3_one, neon_load3_all,
  36    neon_load4_4, neon_load4_one, neon_load4_all,
  37    neon_store,
  38    neon_store1_1, neon_store1_2, neon_store1_3, neon_store1_4, neon_store1_one,
  39    neon_store2_2, neon_store2_one,
  40    neon_store3_3, neon_store3_one,
  41    neon_store4_4, neon_store4_one,
  42    unknown"
  43   (cond [
  44           (eq_attr "type" "neon_abd, neon_abd_q, neon_abd_long,\
  45                            neon_abs, neon_abs_q,\
  46                            neon_minmax, neon_minmax_q")
  47             (const_string "neon_arith_simple")
  48
  49           (eq_attr "type" "neon_add, neon_add_q, neon_add_long,\
  50                            neon_neg, neon_neg_q,\
  51                            neon_sub, neon_sub_q, neon_sub_long, neon_sub_widen,\
  52                            neon_logic, neon_logic_q, neon_tst, neon_tst_q,\
  53                            neon_compare_zero, neon_compare_zero_q")
  54             (const_string "neon_arith_basic")
  55
  56           (eq_attr "type" "neon_add_widen, neon_arith_acc, neon_arith_acc_q,\
  57                            neon_reduc_add, neon_reduc_add_q,\
  58                            neon_reduc_add_acc, neon_reduc_add_acc_q,\
  59                            neon_reduc_add_long, neon_add_halve_narrow_q,\
  60                            neon_add_halve, neon_add_halve_q,\
  61                            neon_sub_halve, neon_sub_halve_q, neon_qabs,\
  62                            neon_qabs_q, neon_qadd, neon_qadd_q, neon_qneg,\
  63                            neon_qneg_q, neon_qsub, neon_qsub_q,\
  64                            neon_sub_halve_narrow_q,\
  65                            neon_compare, neon_compare_q,\
  66                            neon_reduc_minmax, neon_reduc_minmax_q")
  67             (const_string "neon_arith_complex")
  68
  69           (eq_attr "type" "neon_mul_b, neon_mul_b_q, neon_mul_h, neon_mul_h_q,\
  70                            neon_mul_s, neon_mul_s_q,\
  71                            neon_mul_h_scalar, neon_mul_h_scalar_q,\
  72                            neon_mul_s_scalar, neon_mul_s_scalar_q,\
  73                            neon_mul_h_scalar_long, neon_mul_s_scalar_long,\
  74                            neon_sat_mul_b, neon_sat_mul_b_q,\
  75                            neon_sat_mul_h, neon_sat_mul_h_q,\
  76                            neon_sat_mul_s, neon_sat_mul_s_q,\
  77                            neon_sat_mul_h_scalar, neon_sat_mul_h_scalar_q,\
  78                            neon_sat_mul_s_scalar, neon_sat_mul_s_scalar_q,\
  79                            neon_sat_mul_b_long, neon_sat_mul_h_long,\
  80                            neon_sat_mul_s_long, neon_sat_mul_h_scalar_long,\
  81                            neon_sat_mul_s_scalar_long, crypto_pmull")
  82             (const_string "neon_multiply")
  83
  84           (eq_attr "type" "neon_mla_b, neon_mla_h, neon_mla_s,\
  85                            neon_mla_h_scalar, neon_mla_s_scalar,\
  86                            neon_mla_b_long, neon_mla_h_long,\
  87                            neon_mla_s_long,\
  88                            neon_mla_h_scalar_long, neon_mla_s_scalar_long,\
  89                            neon_mla_b_q, neon_mla_h_q, neon_mla_s_q,\
  90                            neon_mla_h_scalar_q, neon_mla_s_scalar_q")
  91             (const_string "neon_mla")
  92
  93           (eq_attr "type" "neon_sat_mla_b_long, neon_sat_mla_h_long,\
  94                            neon_sat_mla_s_long, neon_sat_mla_h_scalar_long,\
  95                            neon_sat_mla_s_scalar_long")
  96             (const_string "neon_sat_mla_long")
  97
  98           (eq_attr "type" "neon_shift_acc, neon_shift_acc_q")
  99             (const_string "neon_shift_acc")
 100
 101           (eq_attr "type" "neon_shift_imm, neon_shift_imm_q,\
 102                            neon_shift_imm_narrow_q, neon_shift_imm_long")
 103             (const_string "neon_shift_imm_basic")
 104
 105           (eq_attr "type" "neon_sat_shift_imm, neon_sat_shift_imm_q,\
 106                            neon_sat_shift_imm_narrow_q")
 107             (const_string "neon_shift_imm_complex")
 108
 109           (eq_attr "type" "neon_shift_reg, neon_shift_reg_q")
 110             (const_string "neon_shift_reg_basic")
 111
 112           (eq_attr "type" "neon_sat_shift_reg, neon_sat_shift_reg_q")
 113             (const_string "neon_shift_reg_complex")
 114
 115           (eq_attr "type" "neon_fp_neg_s, neon_fp_neg_s_q,\
 116                            neon_fp_abs_s, neon_fp_abs_s_q,\
 117                            neon_fp_neg_d, neon_fp_neg_d_q,\
 118                            neon_fp_abs_d, neon_fp_abs_d_q")
 119             (const_string "neon_fp_unary")
 120
 121           (eq_attr "type" "neon_fp_addsub_s, neon_fp_addsub_s_q,\
 122                            neon_fp_addsub_d, neon_fp_addsub_d_q")
 123             (const_string "neon_fp_add")
 124
 125           (eq_attr "type" "neon_fp_abd_s, neon_fp_abd_s_q,\
 126                            neon_fp_abd_d, neon_fp_abd_d_q")
 127             (const_string "neon_fp_abd")
 128
 129           (eq_attr "type" "neon_fp_compare_s, neon_fp_compare_s_q,\
 130                            neon_fp_compare_d, neon_fp_compare_d_q,\
 131                            neon_fp_minmax_s, neon_fp_minmax_s_q,\
 132                            neon_fp_minmax_d, neon_fp_minmax_d_q")
 133             (const_string "neon_fp_compare")
 134
 135           (eq_attr "type" "neon_fp_reduc_minmax_s, neon_fp_reduc_minmax_s_q,\
 136                            neon_fp_reduc_minmax_d, neon_fp_reduc_minmax_d_q")
 137             (const_string "neon_fp_reduc_minmax")
 138
 139           (eq_attr "type" "neon_fp_reduc_add_s, neon_fp_reduc_add_s_q,\
 140                            neon_fp_reduc_add_d, neon_fp_reduc_add_d_q")
 141             (const_string "neon_fp_reduc_add")
 142
 143           (eq_attr "type" "neon_fp_round_s, neon_fp_round_s_q,\
 144                            neon_fp_round_d, neon_fp_round_d_q")
 145             (const_string "neon_fp_round")
 146
 147           (eq_attr "type" "neon_fp_cvt_narrow_s_q, neon_fp_cvt_widen_h,
 148                            neon_fp_to_int_s, neon_fp_to_int_s_q,\
 149                            neon_fp_to_int_d_q, neon_fp_to_int_d,\
 150                            neon_int_to_fp_s, neon_int_to_fp_s_q,\
 151                            neon_int_to_fp_d, neon_int_to_fp_d_q")
 152             (const_string "neon_fp_cvt")
 153
 154           (eq_attr "type" "neon_fp_mul_s, neon_fp_mul_s_q,\
 155                            neon_fp_mul_s_scalar, neon_fp_mul_s_scalar_q,\
 156                            neon_fp_mul_d, neon_fp_mul_d_q,\
 157                            neon_fp_mul_d_scalar_q")
 158             (const_string "neon_fp_mul")
 159
 160           (eq_attr "type" "neon_fp_mla_s, neon_fp_mla_s_q,\
 161                            neon_fp_mla_s_scalar,neon_fp_mla_s_scalar_q,\
 162                            neon_fp_mla_d, neon_fp_mla_d_q,\
 163                            neon_fp_mla_d_scalar_q")
 164             (const_string "neon_fp_mla")
 165
 166           (eq_attr "type" "neon_fp_recpe_s, neon_fp_recpe_s_q,\
 167                            neon_fp_rsqrte_s, neon_fp_rsqrte_s_q,\
 168                            neon_fp_recpe_d, neon_fp_recpe_d_q,\
 169                            neon_fp_rsqrte_d, neon_fp_rsqrte_d_q")
 170             (const_string "neon_fp_estimate")
 171
 172           (eq_attr "type" "neon_fp_recpx_s, neon_fp_recpx_s_q,\
 173                            neon_fp_recpx_d, neon_fp_recpx_d_q")
 174             (const_string "neon_fp_estimatex")
 175
 176           (eq_attr "type" "neon_fp_recps_s, neon_fp_recps_s_q,\
 177                            neon_fp_rsqrts_s, neon_fp_rsqrts_s_q,\
 178                            neon_fp_recps_d, neon_fp_recps_d_q,\
 179                            neon_fp_rsqrts_d, neon_fp_rsqrts_d_q")
 180             (const_string "neon_fp_step")
 181
 182           (eq_attr "type" "neon_rbit, neon_rbit_q,\
 183                            neon_cls, neon_cls_q, neon_cnt, neon_cnt_q,\
 184                            neon_dup, neon_dup_q,\
 185                            neon_rev, neon_rev_q,\
 186                            neon_move, neon_move_q,
 187                            neon_ext, neon_permute, neon_zip")
 188             (const_string "neon_bitops")
 189
 190           (eq_attr "type" "neon_ext_q, neon_permute_q, neon_zip_q")
 191             (const_string "neon_bitops_q")
 192
 193           (eq_attr "type" "neon_bsl, neon_bsl_q")
 194             (const_string "neon_bitins")
 195
 196           (eq_attr "type" "neon_tbl1, neon_tbl2, neon_tbl3, neon_tbl4")
 197             (const_string "neon_tbl")
 198
 199           (eq_attr "type" "neon_from_gp, neon_from_gp_q, f_mcr, f_mcrr")
 200             (const_string "neon_from_gp")
 201
 202           (eq_attr "type" "neon_to_gp, neon_to_gp_q, f_mrc, f_mrrc")
 203             (const_string "neon_to_gp")
 204
 205           (eq_attr "type" "neon_load1_1reg, neon_load1_1reg_q")
 206             (const_string "neon_load1_1")
 207
 208           (eq_attr "type" "neon_load1_2reg, neon_load1_2reg_q")
 209             (const_string "neon_load1_2")
 210
 211           (eq_attr "type" "neon_load1_3reg, neon_load1_3reg_q")
 212             (const_string "neon_load1_3")
 213
 214           (eq_attr "type" "neon_load1_4reg, neon_load1_4reg_q")
 215             (const_string "neon_load1_4")
 216
 217           (eq_attr "type" "neon_load1_one_lane, neon_load1_one_lane_q")
 218             (const_string "neon_load1_one")
 219
 220           (eq_attr "type" "neon_load1_all_lanes, neon_load1_all_lanes_q")
 221             (const_string "neon_load1_all")
 222
 223           (eq_attr "type" "neon_load2_2reg, neon_load2_2reg_q,\
 224                            neon_load2_4reg, neon_load2_4reg_q")
 225             (const_string "neon_load2_2")
 226
 227           (eq_attr "type" "neon_load2_one_lane, neon_load2_one_lane_q")
 228             (const_string "neon_load2_one")
 229
 230           (eq_attr "type" "neon_load2_all_lanes, neon_load2_all_lanes_q")
 231             (const_string "neon_load2_all")
 232
 233           (eq_attr "type" "neon_load3_3reg, neon_load3_3reg_q")
 234             (const_string "neon_load3_3")
 235
 236           (eq_attr "type" "neon_load3_one_lane, neon_load3_one_lane_q")
 237             (const_string "neon_load3_one")
 238
 239           (eq_attr "type" "neon_load3_all_lanes, neon_load3_all_lanes_q")
 240             (const_string "neon_load3_all")
 241
 242           (eq_attr "type" "neon_load4_4reg, neon_load4_4reg_q")
 243             (const_string "neon_load4_4")
 244
 245           (eq_attr "type" "neon_load4_one_lane, neon_load4_one_lane_q")
 246             (const_string "neon_load4_one")
 247
 248           (eq_attr "type" "neon_load4_all_lanes, neon_load4_all_lanes_q")
 249             (const_string "neon_load4_all")
 250
 251           (eq_attr "type" "neon_store1_1reg, neon_store1_1reg_q")
 252             (const_string "neon_store1_1")
 253
 254           (eq_attr "type" "neon_store1_2reg, neon_store1_2reg_q")
 255             (const_string "neon_store1_2")
 256
 257           (eq_attr "type" "neon_store1_3reg, neon_store1_3reg_q")
 258             (const_string "neon_store1_3")
 259
 260           (eq_attr "type" "neon_store1_4reg, neon_store1_4reg_q")
 261             (const_string "neon_store1_4")
 262
 263           (eq_attr "type" "neon_store1_one_lane, neon_store1_one_lane_q")
 264             (const_string "neon_store1_one")
 265
 266           (eq_attr "type" "neon_store2_2reg, neon_store2_2reg_q,\
 267                            neon_store2_4reg, neon_store2_4reg_q")
 268             (const_string "neon_store2_2")
 269
 270           (eq_attr "type" "neon_store2_one_lane, neon_store2_one_lane_q")
 271             (const_string "neon_store2_one")
 272
 273           (eq_attr "type" "neon_store3_3reg, neon_store3_3reg_q")
 274             (const_string "neon_store3_3")
 275
 276           (eq_attr "type" "neon_store3_one_lane, neon_store3_one_lane_q")
 277             (const_string "neon_store3_one")
 278
 279           (eq_attr "type" "neon_store4_4reg, neon_store4_4reg_q")
 280             (const_string "neon_store4_4")
 281
 282           (eq_attr "type" "neon_store4_one_lane, neon_store4_one_lane_q")
 283             (const_string "neon_store4_one")]
 284
 285           (const_string "unknown")))
 286
 287 ;; The Exynos M1 core is modeled as a triple issue pipeline that has
 288 ;; the following functional units.
 289
 290 (define_automaton "exynos_m1_gp")
 291 (define_automaton "exynos_m1_ls")
 292 (define_automaton "exynos_m1_fp")
 293
 294 ;; 1.  Two pipelines for simple integer operations: A, B
 295 ;; 2.  One pipeline for simple or complex integer operations: C
 296
 297 (define_cpu_unit "em1_xa, em1_xb, em1_xc" "exynos_m1_gp")
 298
 299 (define_reservation "em1_alu" "(em1_xa | em1_xb | em1_xc)")
 300 (define_reservation "em1_c" "em1_xc")
 301
 302 ;; 3.  Two asymmetric pipelines for Neon and FP operations: F0, F1
 303
 304 (define_cpu_unit "em1_f0, em1_f1" "exynos_m1_fp")
 305
 306 (define_reservation "em1_fmac" "em1_f0")
 307 (define_reservation "em1_fcvt" "em1_f0")
 308 (define_reservation "em1_nalu" "(em1_f0 | em1_f1)")
 309 (define_reservation "em1_nalu0" "em1_f0")
 310 (define_reservation "em1_nalu1" "em1_f1")
 311 (define_reservation "em1_nmisc" "em1_f0")
 312 (define_reservation "em1_ncrypt" "em1_f0")
 313 (define_reservation "em1_fadd" "em1_f1")
 314 (define_reservation "em1_fvar" "em1_f1")
 315 (define_reservation "em1_fst" "em1_f1")
 316
 317 ;; 4.  One pipeline for branch operations: BX
 318
 319 (define_cpu_unit "em1_bx" "exynos_m1_gp")
 320
 321 (define_reservation "em1_br" "em1_bx")
 322
 323 ;; 5.  One AGU for loads: L
 324 ;;     One AGU for stores and one pipeline for stores: S, SD
 325
 326 (define_cpu_unit "em1_lx" "exynos_m1_ls")
 327 (define_cpu_unit "em1_sx, em1_sd" "exynos_m1_ls")
 328
 329 (define_reservation "em1_ld" "em1_lx")
 330 (define_reservation "em1_st" "(em1_sx + em1_sd)")
 331
 332 ;; Common occurrences
 333 (define_reservation "em1_sfst" "(em1_fst + em1_st)")
 334 (define_reservation "em1_lfst" "(em1_fst + em1_ld)")
 335
 336 ;; Branches
 337 ;;
 338 ;; No latency as there is no result
 339 ;; TODO: Unconditional branches use no units;
 340 ;; conditional branches add the BX unit;
 341 ;; indirect branches add the C unit.
 342 (define_insn_reservation "exynos_m1_branch" 0
 343   (and (eq_attr "tune" "exynosm1")
 344        (eq_attr "type" "branch"))
 345   "em1_br")
 346
 347 (define_insn_reservation "exynos_m1_call" 1
 348   (and (eq_attr "tune" "exynosm1")
 349        (eq_attr "type" "call"))
 350   "em1_alu")
 351
 352 ;; Basic ALU
 353 ;;
 354 ;; Simple ALU without shift, non-predicated
 355 (define_insn_reservation "exynos_m1_alu" 1
 356   (and (eq_attr "tune" "exynosm1")
 357        (and (not (eq_attr "predicated" "yes"))
 358             (eq_attr "type" "alu_imm, alus_imm, logic_imm, logics_imm,\
 359                              alu_sreg, alus_sreg, logic_reg, logics_reg,\
 360                              adc_imm, adcs_imm, adc_reg, adcs_reg,\
 361                              adr, bfm, bfx, clz, rbit, rev, csel, alu_dsp_reg,\
 362                              shift_imm, shift_reg, rotate_imm, extend,\
 363                              mov_imm, mov_reg,\
 364                              mvn_imm, mvn_reg,\
 365                              mrs, multiple")))
 366   "em1_alu")
 367
 368 ;; Simple ALU without shift, predicated
 369 (define_insn_reservation "exynos_m1_alu_p" 1
 370   (and (eq_attr "tune" "exynosm1")
 371        (and (eq_attr "predicated" "yes")
 372             (eq_attr "type" "alu_imm, alus_imm, logic_imm, logics_imm,\
 373                              alu_sreg, alus_sreg, logic_reg, logics_reg,\
 374                              adc_imm, adcs_imm, adc_reg, adcs_reg,\
 375                              adr, bfm, bfx, clz, rbit, rev, alu_dsp_reg,\
 376                              shift_imm, shift_reg, rotate_imm, extend,\
 377                              mov_imm, mov_reg,\
 378                              mvn_imm, mvn_reg,\
 379                              mrs, multiple")))
 380   "em1_c")
 381
 382 ;; ALU ops with immediate shift
 383 ;; TODO: if the shift value is between 0 and 3, the latency is just 1 cycle;
 384 ;;       otherwise it takes 2 cycles and the unit is blocked;
 385 ;;       for now, assume the latter's latency and the former's units.
 386 (define_insn_reservation "exynos_m1_alu_shift" 2
 387   (and (eq_attr "tune" "exynosm1")
 388        (eq_attr "type" "alu_ext, alus_ext,\
 389                         alu_shift_imm_lsl_1to4,alu_shift_imm_other, alus_shift_imm,\
 390                         logic_shift_imm, logics_shift_imm,\
 391                         mov_shift, mvn_shift"))
 392   "(em1_alu)")
 393
 394 ;; ALU ops with register controlled shift, non-predicated
 395 (define_insn_reservation "exynos_m1_alu_shift_reg" 2
 396   (and (eq_attr "tune" "exynosm1")
 397        (and (not (eq_attr "predicated" "yes"))
 398             (eq_attr "type" "alu_shift_reg, alus_shift_reg,\
 399                              logic_shift_reg, logics_shift_reg,\
 400                              mov_shift_reg, mvn_shift_reg")))
 401    "(em1_alu * 2)")
 402
 403 ;; ALU ops with register controlled shift, predicated
 404 (define_insn_reservation "exynos_m1_alu_shift_reg_p" 2
 405   (and (eq_attr "tune" "exynosm1")
 406        (and (eq_attr "predicated" "yes")
 407             (eq_attr "type" "alu_shift_reg, alus_shift_reg,\
 408                              logic_shift_reg, logics_shift_reg,\
 409                              mov_shift_reg, mvn_shift_reg")))
 410   "(em1_alu, em1_c)")
 411
 412 ;; Integer multiply
 413 (define_insn_reservation "exynos_m1_mla" 3
 414   (and (eq_attr "tune" "exynosm1")
 415        (eq_attr "mul32" "yes"))
 416   "em1_c")
 417
 418 (define_insn_reservation "exynos_m1_mlal" 4
 419   (and (eq_attr "tune" "exynosm1")
 420        (eq_attr "widen_mul64" "yes"))
 421   "em1_alu, em1_c")
 422
 423 ;; Integer divide
 424 ;; TODO: assume the median latency; blocks other divisions
 425 (define_insn_reservation "exynos_m1_div" 13
 426   (and (eq_attr "tune" "exynosm1")
 427        (eq_attr "type" "udiv, sdiv"))
 428   "em1_c")
 429
 430 ;; Load-store execution Unit
 431 ;;
 432 ;; Loads of up to 2 words.
 433 (define_insn_reservation "exynos_m1_load" 4
 434   (and (eq_attr "tune" "exynosm1")
 435        (eq_attr "type" "load_byte, load_4, load_8"))
 436   "em1_ld")
 437
 438 ;; Loads of 3 or 4 words.
 439 (define_insn_reservation "exynos_m1_loadm" 6
 440   (and (eq_attr "tune" "exynosm1")
 441        (eq_attr "type" "load_12, load_16"))
 442   "(em1_ld * 3)")
 443
 444 ;; Stores of up to 2 words.
 445 (define_insn_reservation "exynos_m1_store" 1
 446   (and (eq_attr "tune" "exynosm1")
 447        (eq_attr "type" "store_4, store_8"))
 448   "em1_st")
 449
 450 ;; Stores of 3 or 4 words.
 451 (define_insn_reservation "exynos_m1_storem" 3
 452   (and (eq_attr "tune" "exynosm1")
 453        (eq_attr "type" "store_12, store_16"))
 454   "(em1_st * 3)")
 455
 456 ;; Advanced SIMD Unit
 457 ;;
 458 ;; Integer Arithmetic Instructions.
 459
 460 (define_insn_reservation  "exynos_m1_arith_simple" 1
 461   (and (eq_attr "tune" "exynosm1")
 462        (eq_attr "exynos_m1_neon_type" "neon_arith_simple"))
 463   "em1_nmisc")
 464
 465 (define_insn_reservation  "exynos_m1_neon_arith_basic" 2
 466   (and (eq_attr "tune" "exynosm1")
 467        (eq_attr "exynos_m1_neon_type" "neon_arith_basic"))
 468   "em1_nalu")
 469
 470 (define_insn_reservation  "exynos_m1_neon_arith_complex" 3
 471   (and (eq_attr "tune" "exynosm1")
 472        (eq_attr "exynos_m1_neon_type" "neon_arith_complex"))
 473   "em1_nmisc")
 474
 475 ;; Integer Multiply Instructions.
 476
 477 (define_insn_reservation "exynos_m1_neon_multiply" 4
 478   (and (eq_attr "tune" "exynosm1")
 479        (eq_attr "exynos_m1_neon_type"
 480                 "neon_multiply, neon_mla, neon_sat_mla_long"))
 481   "em1_nmisc")
 482
 483 ;; Integer Shift Instructions.
 484
 485 (define_insn_reservation
 486   "exynos_m1_neon_shift_acc" 4
 487   (and (eq_attr "tune" "exynosm1")
 488        (eq_attr "exynos_m1_neon_type" "neon_shift_acc"))
 489   "em1_nalu1")
 490
 491 (define_insn_reservation
 492   "exynos_m1_neon_shift_basic" 2
 493   (and (eq_attr "tune" "exynosm1")
 494        (eq_attr "exynos_m1_neon_type"
 495                 "neon_shift_imm_basic, neon_shift_reg_basic"))
 496   "em1_nalu")
 497
 498 (define_insn_reservation
 499   "exynos_m1_neon_shift_complex" 4
 500   (and (eq_attr "tune" "exynosm1")
 501        (eq_attr "exynos_m1_neon_type"
 502                 "neon_shift_imm_complex, neon_shift_reg_complex"))
 503   "em1_nalu1")
 504
 505 ;; Floating Point Instructions.
 506
 507 (define_insn_reservation
 508   "exynos_m1_neon_fp_unary" 2
 509   (and (eq_attr "tune" "exynosm1")
 510        (eq_attr "exynos_m1_neon_type" "neon_fp_unary"))
 511   "em1_nalu")
 512
 513 (define_insn_reservation
 514   "exynos_m1_neon_fp_add" 4
 515   (and (eq_attr "tune" "exynosm1")
 516        (eq_attr "exynos_m1_neon_type" "neon_fp_add"))
 517   "em1_fadd")
 518
 519 (define_insn_reservation
 520   "exynos_m1_neon_fp_abd" 3
 521   (and (eq_attr "tune" "exynosm1")
 522        (eq_attr "exynos_m1_neon_type" "neon_fp_abd"))
 523   "em1_nmisc")
 524
 525 (define_insn_reservation
 526   "exynos_m1_neon_fp_compare" 1
 527   (and (eq_attr "tune" "exynosm1")
 528        (eq_attr "exynos_m1_neon_type" "neon_fp_compare"))
 529   "em1_nmisc")
 530
 531 ;; TODO: the latency and throughput of reduce insns actually varies between
 532 ;; 3-5 and 1/4-1, but picked the median values.
 533 (define_insn_reservation
 534   "exynos_m1_neon_fp_reduc" 5
 535   (and (eq_attr "tune" "exynosm1")
 536        (eq_attr "exynos_m1_neon_type" "neon_fp_reduc_minmax"))
 537   "(em1_nmisc * 4)")
 538
 539 (define_insn_reservation
 540   "exynos_m1_neon_fp_reduc_add" 10
 541   (and (eq_attr "tune" "exynosm1")
 542        (eq_attr "exynos_m1_neon_type" "neon_fp_reduc_add"))
 543   "((em1_nalu * 2), em1_fadd)")
 544
 545 (define_insn_reservation
 546   "exynos_m1_neon_fp_round" 4
 547   (and (eq_attr "tune" "exynosm1")
 548        (eq_attr "exynos_m1_neon_type" "neon_fp_round"))
 549   "em1_fcvt")
 550
 551 (define_insn_reservation
 552   "exynos_m1_neon_fp_cvt" 4
 553   (and (eq_attr "tune" "exynosm1")
 554        (eq_attr "exynos_m1_neon_type" "neon_fp_cvt"))
 555   "em1_fcvt")
 556
 557 (define_insn_reservation
 558   "exynos_m1_neon_fp_mul" 5
 559   (and (eq_attr "tune" "exynosm1")
 560        (eq_attr "exynos_m1_neon_type" "neon_fp_mul"))
 561   "em1_fmac")
 562
 563 (define_insn_reservation
 564   "exynos_m1_neon_fp_mla" 6
 565   (and (eq_attr "tune" "exynosm1")
 566        (eq_attr "exynos_m1_neon_type" "neon_fp_mla"))
 567   "em1_fmac")
 568
 569 (define_insn_reservation
 570   "exynos_m1_neon_fp_estimate" 5
 571   (and (eq_attr "tune" "exynosm1")
 572        (eq_attr "exynos_m1_neon_type" "neon_fp_estimate"))
 573   "em1_fcvt")
 574
 575 (define_insn_reservation
 576   "exynos_m1_neon_fp_estimatex" 1
 577   (and (eq_attr "tune" "exynosm1")
 578        (eq_attr "exynos_m1_neon_type" "neon_fp_estimatex"))
 579   "em1_nmisc")
 580
 581 (define_insn_reservation
 582   "exynos_m1_neon_fp_step" 6
 583   (and (eq_attr "tune" "exynosm1")
 584        (eq_attr "exynos_m1_neon_type" "neon_fp_step"))
 585   "em1_fmac")
 586
 587 ;; Miscellaneous Instructions.
 588
 589 (define_insn_reservation
 590   "exynos_m1_neon_bitops" 2
 591   (and (eq_attr "tune" "exynosm1")
 592        (eq_attr "exynos_m1_neon_type" "neon_bitops"))
 593   "em1_nalu")
 594
 595 (define_insn_reservation
 596   "exynos_m1_neon_bitops_q" 3
 597   (and (eq_attr "tune" "exynosm1")
 598        (eq_attr "exynos_m1_neon_type" "neon_bitops_q"))
 599   "(em1_nalu, em1_nalu)")
 600
 601 (define_insn_reservation
 602   "exynos_m1_neon_bitins" 2
 603   (and (eq_attr "tune" "exynosm1")
 604        (eq_attr "exynos_m1_neon_type" "neon_bitins"))
 605   "em1_nalu1")
 606
 607 ;; TODO: it is more complicated than this.
 608 (define_insn_reservation
 609   "exynos_m1_neon_tbl" 2
 610   (and (eq_attr "tune" "exynosm1")
 611        (eq_attr "exynos_m1_neon_type" "neon_tbl"))
 612   "em1_nalu1")
 613
 614 (define_insn_reservation
 615   "exynos_m1_neon_from_gp" 4
 616   (and (eq_attr "tune" "exynosm1")
 617        (eq_attr "exynos_m1_neon_type" "neon_from_gp"))
 618   "em1_st")
 619
 620 (define_insn_reservation
 621   "exynos_m1_neon_to_gp" 9
 622   (and (eq_attr "tune" "exynosm1")
 623        (eq_attr "exynos_m1_neon_type" "neon_to_gp"))
 624   "em1_lfst")
 625
 626 ;; Load Instructions.
 627
 628 (define_insn_reservation
 629   "exynos_m1_neon_load" 5
 630   (and (eq_attr "tune" "exynosm1")
 631        (eq_attr "type" "f_loads, f_loadd, neon_ldp"))
 632   "em1_ld")
 633
 634 (define_insn_reservation
 635   "exynos_m1_neon_load_q" 6
 636   (and (eq_attr "tune" "exynosm1")
 637        (eq_attr "type" "neon_ldp_q"))
 638   "(em1_ld, em1_ld)")
 639
 640 (define_insn_reservation
 641   "exynos_m1_neon_load1_1" 6
 642   (and (eq_attr "tune" "exynosm1")
 643        (eq_attr "exynos_m1_neon_type" "neon_load1_1, neon_load1_all"))
 644   "em1_ld")
 645
 646 (define_insn_reservation
 647   "exynos_m1_neon_load1_2" 6
 648   (and (eq_attr "tune" "exynosm1")
 649        (eq_attr "exynos_m1_neon_type" "neon_load1_2"))
 650   "(em1_ld * 2)")
 651
 652 (define_insn_reservation
 653   "exynos_m1_neon_load1_3" 7
 654   (and (eq_attr "tune" "exynosm1")
 655        (eq_attr "exynos_m1_neon_type" "neon_load1_3"))
 656   "(em1_ld * 3)")
 657
 658 (define_insn_reservation
 659   "exynos_m1_neon_load1_4" 8
 660   (and (eq_attr "tune" "exynosm1")
 661        (eq_attr "exynos_m1_neon_type" "neon_load1_4"))
 662   "(em1_ld * 4)")
 663
 664 (define_insn_reservation
 665   "exynos_m1_neon_load1_one" 7
 666   (and (eq_attr "tune" "exynosm1")
 667        (eq_attr "exynos_m1_neon_type" "neon_load1_one"))
 668   "((em1_ld * 2), em1_nalu)")
 669
 670 (define_insn_reservation
 671   "exynos_m1_neon_load2_2" 10
 672   (and (eq_attr "tune" "exynosm1")
 673        (eq_attr "exynos_m1_neon_type" "neon_load2_2"))
 674   "(em1_ld * 5)")
 675
 676 (define_insn_reservation
 677   "exynos_m1_neon_load2_one" 7
 678   (and (eq_attr "tune" "exynosm1")
 679        (eq_attr "exynos_m1_neon_type" "neon_load2_one"))
 680   "((em1_ld * 2), (em1_nalu * 2))")
 681
 682 (define_insn_reservation
 683   "exynos_m1_neon_load2_all" 6
 684   (and (eq_attr "tune" "exynosm1")
 685        (eq_attr "exynos_m1_neon_type" "neon_load2_all"))
 686   "(em1_ld * 2)")
 687
 688 (define_insn_reservation
 689   "exynos_m1_neon_load3_3" 12
 690   (and (eq_attr "tune" "exynosm1")
 691        (eq_attr "exynos_m1_neon_type" "neon_load3_3"))
 692   "(em1_ld * 6)")
 693
 694 (define_insn_reservation
 695   "exynos_m1_neon_load3_one" 9
 696   (and (eq_attr "tune" "exynosm1")
 697        (eq_attr "exynos_m1_neon_type" "neon_load3_one"))
 698   "((em1_ld * 4), (em1_nalu * 3))")
 699
 700 (define_insn_reservation
 701   "exynos_m1_neon_load3_all" 7
 702   (and (eq_attr "tune" "exynosm1")
 703        (eq_attr "exynos_m1_neon_type" "neon_load3_all"))
 704   "(em1_ld * 3)")
 705
 706 (define_insn_reservation
 707   "exynos_m1_neon_load4_4" 14
 708   (and (eq_attr "tune" "exynosm1")
 709        (eq_attr "exynos_m1_neon_type" "neon_load4_4"))
 710   "(em1_ld * 7)")
 711
 712 (define_insn_reservation
 713   "exynos_m1_neon_load4_one" 9
 714   (and (eq_attr "tune" "exynosm1")
 715        (eq_attr "exynos_m1_neon_type" "neon_load4_one"))
 716   "((em1_ld * 4), (em1_nalu * 4))")
 717
 718 (define_insn_reservation
 719   "exynos_m1_neon_load4_all" 8
 720   (and (eq_attr "tune" "exynosm1")
 721        (eq_attr "exynos_m1_neon_type" "neon_load4_all"))
 722   "(em1_ld * 4)")
 723
 724 ;; Store Instructions.
 725
 726 (define_insn_reservation
 727   "exynos_m1_neon_store" 1
 728   (and (eq_attr "tune" "exynosm1")
 729        (eq_attr "type" "f_stores, f_stored, neon_stp"))
 730   "em1_sfst")
 731
 732 (define_insn_reservation
 733   "exynos_m1_neon_store_q" 3
 734   (and (eq_attr "tune" "exynosm1")
 735        (eq_attr "type" "neon_stp_q"))
 736   "(em1_sfst * 2)")
 737
 738 (define_insn_reservation
 739   "exynos_m1_neon_store1_1" 1
 740   (and (eq_attr "tune" "exynosm1")
 741        (eq_attr "exynos_m1_neon_type" "neon_store1_1"))
 742   "em1_sfst")
 743
 744 (define_insn_reservation
 745   "exynos_m1_neon_store1_2" 2
 746   (and (eq_attr "tune" "exynosm1")
 747        (eq_attr "exynos_m1_neon_type" "neon_store1_2"))
 748   "(em1_sfst * 2)")
 749
 750 (define_insn_reservation
 751   "exynos_m1_neon_store1_3" 3
 752   (and (eq_attr "tune" "exynosm1")
 753        (eq_attr "exynos_m1_neon_type" "neon_store1_3"))
 754   "(em1_sfst * 3)")
 755
 756 (define_insn_reservation
 757   "exynos_m1_neon_store1_4" 4
 758   (and (eq_attr "tune" "exynosm1")
 759        (eq_attr "exynos_m1_neon_type" "neon_store1_4"))
 760   "(em1_sfst * 4)")
 761
 762 (define_insn_reservation
 763   "exynos_m1_neon_store1_one" 7
 764   (and (eq_attr "tune" "exynosm1")
 765        (eq_attr "exynos_m1_neon_type" "neon_store1_one"))
 766   "em1_sfst")
 767
 768 (define_insn_reservation
 769   "exynos_m1_neon_store2" 7
 770   (and (eq_attr "tune" "exynosm1")
 771        (eq_attr "exynos_m1_neon_type" "neon_store2_2, neon_store2_one"))
 772   "em1_sfst, em1_fst")
 773
 774 (define_insn_reservation
 775   "exynos_m1_neon_store3" 16
 776   (and (eq_attr "tune" "exynosm1")
 777        (eq_attr "exynos_m1_neon_type" "neon_store3_3, neon_store3_one"))
 778   "((em1_sfst * 3), (em1_fst * 2), em1_nalu)")
 779
 780 (define_insn_reservation
 781   "exynos_m1_neon_store4" 17
 782   (and (eq_attr "tune" "exynosm1")
 783        (eq_attr "exynos_m1_neon_type" "neon_store4_4, neon_store4_one"))
 784   "((em1_sfst * 4), (em1_fst * 2), em1_nalu)")
 785
 786 ;; Floating-Point Operations.
 787
 788 (define_insn_reservation "exynos_m1_fp_const" 2
 789   (and (eq_attr "tune" "exynosm1")
 790        (eq_attr "type" "fconsts, fconstd"))
 791   "em1_nalu")
 792
 793 (define_insn_reservation "exynos_m1_fp_add" 4
 794   (and (eq_attr "tune" "exynosm1")
 795        (eq_attr "type" "fadds, faddd"))
 796   "em1_fadd")
 797
 798 (define_insn_reservation "exynos_m1_fp_mul" 5
 799   (and (eq_attr "tune" "exynosm1")
 800        (eq_attr "type" "fmuls, fmuld"))
 801   "em1_fmac")
 802
 803 (define_insn_reservation "exynos_m1_fp_mac" 6
 804   (and (eq_attr "tune" "exynosm1")
 805        (eq_attr "type" "fmacs, ffmas, fmacd, ffmad"))
 806   "em1_fmac")
 807
 808 (define_insn_reservation "exynos_m1_fp_cvt" 4
 809   (and (eq_attr "tune" "exynosm1")
 810        (eq_attr "type" "f_cvt, f_rints, f_rintd"))
 811   "em1_fcvt")
 812
 813 (define_insn_reservation "exynos_m1_fp_cvt_i" 13
 814   (and (eq_attr "tune" "exynosm1")
 815        (eq_attr "type" "f_cvtf2i"))
 816   "(em1_fcvt, em1_lfst)")
 817
 818 (define_insn_reservation "exynos_m1_i_cvt_fp" 9
 819   (and (eq_attr "tune" "exynosm1")
 820        (eq_attr "type" "f_cvti2f"))
 821   "(em1_st, em1_fcvt)")
 822
 823 (define_insn_reservation "exynos_m1_fp_cmp" 4
 824   (and (eq_attr "tune" "exynosm1")
 825        (eq_attr "type" "fcmps, fcmpd"))
 826   "em1_nmisc")
 827
 828 (define_insn_reservation "exynos_m1_fp_ccmp" 7
 829   (and (eq_attr "tune" "exynosm1")
 830        (eq_attr "type" "fccmps, fccmpd"))
 831   "(em1_st, em1_nmisc)")
 832
 833 (define_insn_reservation "exynos_m1_fp_sel" 4
 834   (and (eq_attr "tune" "exynosm1")
 835        (eq_attr "type" "fcsel"))
 836   "(em1_st + em1_nalu0)")
 837
 838 (define_insn_reservation "exynos_m1_fp_arith" 2
 839   (and (eq_attr "tune" "exynosm1")
 840        (eq_attr "type" "ffariths, ffarithd"))
 841   "em1_nalu")
 842
 843 (define_insn_reservation "exynos_m1_fp_cpy" 2
 844   (and (eq_attr "tune" "exynosm1")
 845        (eq_attr "type" "fmov"))
 846   "em1_nalu")
 847
 848 (define_insn_reservation "exynos_m1_fp_divs" 15
 849   (and (eq_attr "tune" "exynosm1")
 850        (eq_attr "type" "fdivs, neon_fp_div_s, neon_fp_div_s_q,\
 851                         fsqrts, neon_fp_sqrt_s, neon_fp_sqrt_s_q"))
 852   "(em1_fvar * 9)")
 853
 854 (define_insn_reservation "exynos_m1_fp_divd" 22
 855   (and (eq_attr "tune" "exynosm1")
 856        (eq_attr "type" "fdivd, neon_fp_div_d, neon_fp_div_d_q,\
 857                         fsqrtd, neon_fp_sqrt_d, neon_fp_sqrt_d_q"))
 858   "(em1_fvar * 9)")
 859
 860 (define_insn_reservation "exynos_m1_fp_minmax" 2
 861   (and (eq_attr "tune" "exynosm1")
 862        (eq_attr "type" "f_minmaxs, f_minmaxd"))
 863   "(em1_nmisc * 2)")
 864
 865 ;; Crypto Operations.
 866
 867 (define_insn_reservation "exynos_m1_crypto_simple" 2
 868   (and (eq_attr "tune" "exynosm1")
 869        (eq_attr "type" "crypto_aese, crypto_aesmc,\
 870                         crypto_sha1_xor, crypto_sha1_fast, crypto_sha256_fast"))
 871   "em1_ncrypt")
 872
 873 (define_insn_reservation "exynos_m1_crypto_complex" 6
 874   (and (eq_attr "tune" "exynosm1")
 875        (eq_attr "type" "crypto_sha1_slow, crypto_sha256_slow"))
 876   "em1_ncrypt")
 877
 878 (define_insn_reservation "exynos_m1_crypto_poly" 2
 879   (and (eq_attr "tune" "exynosm1")
 880        (eq_attr "type" "neon_mul_b_long, neon_mul_h_long, neon_mul_s_long"))
 881   "em1_ncrypt")
 882
 883 (define_insn_reservation "exynos_m1_crypto_polyl" 4
 884   (and (eq_attr "tune" "exynosm1")
 885        (eq_attr "type" "neon_mul_d_long"))
 886   "em1_ncrypt")
 887
 888 (define_insn_reservation "exynos_m1_crc" 2
 889   (and (eq_attr "tune" "exynosm1")
 890        (eq_attr "type" "crc"))
 891   "em1_c")
 892
 893 ;; Simple execution unit bypasses
 894
 895 ;; Pre-decrement and post-increment addressing modes update the register quickly.
 896 ;; TODO: figure out how to tell the addressing mode register from the loaded one.
 897 (define_bypass 1 "exynos_m1_store*, exynos_m1_neon_store*"
 898                  "exynos_m1_store*, exynos_m1_neon_store*,
 899                   exynos_m1_load*, exynos_m1_neon_load*")
 900
 901 ;; MLAs can feed other MLAs quickly.
 902 (define_bypass 1 "exynos_m1_mla*" "exynos_m1_mla*")
 903
 904 ;; Insns in FMAC or FADD can feed other such insns quickly.
 905 (define_bypass 4 "exynos_m1_fp_mul"
 906                  "exynos_m1_fp_add, exynos_m1_fp_mul, exynos_m1_fp_mac")
 907 (define_bypass 5 "exynos_m1_fp_mac"
 908                  "exynos_m1_fp_add, exynos_m1_fp_mul, exynos_m1_fp_mac")
 909 (define_bypass 4 "exynos_m1_neon_fp_mul"
 910                  "exynos_m1_neon_fp_add, exynos_m1_neon_fp_mul,\
 911                   exynos_m1_neon_fp_mla, exynos_m1_neon_fp_step")
 912 (define_bypass 5 "exynos_m1_neon_fp_mla, exynos_m1_neon_fp_step"
 913                  "exynos_m1_neon_fp_add, exynos_m1_neon_fp_mul,\
 914                   exynos_m1_neon_fp_mla, exynos_m1_neon_fp_step")
 915 (define_bypass 3 "exynos_m1_fp_add"
 916                  "exynos_m1_fp_add, exynos_m1_fp_mul, exynos_m1_fp_mac")
 917 (define_bypass 3 "exynos_m1_neon_fp_add"
 918                  "exynos_m1_neon_fp_add, exynos_m1_neon_fp_mul,\
 919                   exynos_m1_neon_fp_mla, exynos_m1_neon_fp_step")
 920
 921 ;; Insns in NALU can feed other such insns quickly.
 922 (define_bypass 1 "exynos_m1_fp_const, exynos_m1_fp_arith, exynos_m1_fp_cpy"
 923                  "exynos_m1_fp_const, exynos_m1_fp_arith, exynos_m1_fp_cpy,\
 924                   exynos_m1_fp_sel")
 925 (define_bypass 3 "exynos_m1_fp_sel"
 926                  "exynos_m1_fp_const, exynos_m1_fp_arith, exynos_m1_fp_cpy,\
 927                   exynos_m1_fp_sel")
 928 (define_bypass 1 "exynos_m1_neon_arith_basic, exynos_m1_neon_shift_basic,\
 929                   exynos_m1_neon_bitops, exynos_m1_neon_bitins,\
 930                   exynos_m1_neon_tbl"
 931                  "exynos_m1_neon_arith_basic, exynos_m1_neon_shift_basic,\
 932                   exynos_m1_neon_shift_acc, exynos_m1_neon_shift_complex,\
 933                   exynos_m1_neon_bitops*, exynos_m1_neon_bitins,\
 934                   exynos_m1_neon_tbl")
 935 (define_bypass 3 "exynos_m1_neon_shift_acc, exynos_m1_neon_shift_complex"
 936                  "exynos_m1_neon_arith_basic, exynos_m1_neon_shift_basic,\
 937                   exynos_m1_neon_shift_acc, exynos_m1_neon_shift_complex,\
 938                   exynos_m1_neon_bitops*, exynos_m1_neon_bitins,\
 939                   exynos_m1_neon_tbl")
 940 (define_bypass 1 "exynos_m1_neon_fp_unary" "exynos_m1_neon_fp_unary")
 941
 942 ;; Insns in NCRYPT can feed other such insns quickly.
 943 (define_bypass 1 "exynos_m1_crypto_simple, exynos_m1_crypto_poly"
 944                  "exynos_m1_crypto_simple, exynos_m1_crypto_complex,\
 945                   exynos_m1_crypto_poly*")
 946 (define_bypass 3 "exynos_m1_crypto_polyl"
 947                  "exynos_m1_crypto_simple, exynos_m1_crypto_complex,\
 948                   exynos_m1_crypto_poly*")
 949 (define_bypass 5 "exynos_m1_crypto_complex"
 950                  "exynos_m1_crypto_simple, exynos_m1_crypto_complex,\
 951                   exynos_m1_crypto_poly*")
 952
 953 ;; Predicted branches take no time, but mispredicted ones take forever anyway.
 954 (define_bypass 1 "exynos_m1_*"
 955                  "exynos_m1_call, exynos_m1_branch")