;; Samsung Exynos M1 pipeline description
;; Copyright (C) 2014-2023 Free Software Foundation, Inc.
;;
;; This file is part of GCC.
;;
;; GCC is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;;
;; GCC is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GCC; see the file COPYING3. If not see
;; <http://www.gnu.org/licenses/>.
(define_attr "exynos_m1_neon_type"
"neon_arith_simple, neon_arith_basic, neon_arith_complex,
neon_multiply, neon_mla, neon_mla_q, neon_mla_long, neon_sat_mla_long,
neon_shift_acc, neon_shift_imm_basic, neon_shift_imm_complex,
neon_shift_reg_basic, neon_shift_reg_basic_q,
neon_shift_reg_complex, neon_shift_reg_complex_q,
neon_fp_unary, neon_fp_add, neon_fp_abd, neon_fp_compare,
neon_fp_reduc_minmax, neon_fp_reduc_add, neon_fp_round, neon_fp_cvt,
neon_fp_minmax, neon_fp_mul, neon_fp_mul_q, neon_fp_mla, neon_fp_mla_q,
neon_fp_estimate, neon_fp_estimatex, neon_fp_step,
neon_bitops, neon_bitops_q, neon_bitins,
neon_to_gp, neon_from_gp, neon_move, neon_tbl,
neon_load1_1, neon_load1_2, neon_load1_3, neon_load1_4,
neon_load1_one, neon_load1_all,
neon_load2_2, neon_load2_one, neon_load2_all,
neon_load3_3, neon_load3_one, neon_load3_all,
neon_load4_4, neon_load4_one, neon_load4_all,
neon_store,
neon_store1_1, neon_store1_2, neon_store1_3, neon_store1_4, neon_store1_one,
neon_store2_2, neon_store2_one,
neon_store3_3, neon_store3_one,
neon_store4_4, neon_store4_one,
unknown"
(cond [
(eq_attr "type" "neon_abd, neon_abd_q, neon_abd_long,\
neon_abs, neon_abs_q,\
neon_minmax, neon_minmax_q")
(const_string "neon_arith_simple")
(eq_attr "type" "neon_add, neon_add_q, neon_add_long,\
neon_neg, neon_neg_q,\
neon_sub, neon_sub_q, neon_sub_long, neon_sub_widen,\
neon_logic, neon_logic_q, neon_tst, neon_tst_q,\
neon_compare_zero, neon_compare_zero_q")
(const_string "neon_arith_basic")
(eq_attr "type" "neon_add_widen, neon_arith_acc, neon_arith_acc_q,\
neon_reduc_add, neon_reduc_add_q,\
neon_reduc_add_acc, neon_reduc_add_acc_q,\
neon_reduc_add_long, neon_add_halve_narrow_q,\
neon_add_halve, neon_add_halve_q,\
neon_sub_halve, neon_sub_halve_q, neon_qabs,\
neon_qabs_q, neon_qadd, neon_qadd_q, neon_qneg,\
neon_qneg_q, neon_qsub, neon_qsub_q,\
neon_sub_halve_narrow_q,\
neon_compare, neon_compare_q,\
neon_reduc_minmax, neon_reduc_minmax_q")
(const_string "neon_arith_complex")
(eq_attr "type" "neon_mul_b, neon_mul_b_q, neon_mul_h, neon_mul_h_q,\
neon_mul_s, neon_mul_s_q,\
neon_mul_h_scalar, neon_mul_h_scalar_q,\
neon_mul_s_scalar, neon_mul_s_scalar_q,\
neon_mul_h_scalar_long, neon_mul_s_scalar_long,\
neon_sat_mul_b, neon_sat_mul_b_q,\
neon_sat_mul_h, neon_sat_mul_h_q,\
neon_sat_mul_s, neon_sat_mul_s_q,\
neon_sat_mul_h_scalar, neon_sat_mul_h_scalar_q,\
neon_sat_mul_s_scalar, neon_sat_mul_s_scalar_q,\
neon_sat_mul_b_long, neon_sat_mul_h_long,\
neon_sat_mul_s_long, neon_sat_mul_h_scalar_long,\
neon_sat_mul_s_scalar_long, crypto_pmull")
(const_string "neon_multiply")
(eq_attr "type" "neon_mla_b, neon_mla_h, neon_mla_s,\
neon_mla_h_scalar, neon_mla_s_scalar,\
neon_mla_b_long, neon_mla_h_long,\
neon_mla_s_long,\
neon_mla_h_scalar_long, neon_mla_s_scalar_long,\
neon_mla_b_q, neon_mla_h_q, neon_mla_s_q,\
neon_mla_h_scalar_q, neon_mla_s_scalar_q")
(const_string "neon_mla")
(eq_attr "type" "neon_sat_mla_b_long, neon_sat_mla_h_long,\
neon_sat_mla_s_long, neon_sat_mla_h_scalar_long,\
neon_sat_mla_s_scalar_long")
(const_string "neon_sat_mla_long")
(eq_attr "type" "neon_shift_acc, neon_shift_acc_q")
(const_string "neon_shift_acc")
(eq_attr "type" "neon_shift_imm, neon_shift_imm_q,\
neon_shift_imm_narrow_q, neon_shift_imm_long")
(const_string "neon_shift_imm_basic")
(eq_attr "type" "neon_sat_shift_imm, neon_sat_shift_imm_q,\
neon_sat_shift_imm_narrow_q")
(const_string "neon_shift_imm_complex")
(eq_attr "type" "neon_shift_reg, neon_shift_reg_q")
(const_string "neon_shift_reg_basic")
(eq_attr "type" "neon_sat_shift_reg, neon_sat_shift_reg_q")
(const_string "neon_shift_reg_complex")
(eq_attr "type" "neon_fp_neg_s, neon_fp_neg_s_q,\
neon_fp_abs_s, neon_fp_abs_s_q,\
neon_fp_neg_d, neon_fp_neg_d_q,\
neon_fp_abs_d, neon_fp_abs_d_q")
(const_string "neon_fp_unary")
(eq_attr "type" "neon_fp_addsub_s, neon_fp_addsub_s_q,\
neon_fp_addsub_d, neon_fp_addsub_d_q")
(const_string "neon_fp_add")
(eq_attr "type" "neon_fp_abd_s, neon_fp_abd_s_q,\
neon_fp_abd_d, neon_fp_abd_d_q")
(const_string "neon_fp_abd")
(eq_attr "type" "neon_fp_compare_s, neon_fp_compare_s_q,\
neon_fp_compare_d, neon_fp_compare_d_q,\
neon_fp_minmax_s, neon_fp_minmax_s_q,\
neon_fp_minmax_d, neon_fp_minmax_d_q")
(const_string "neon_fp_compare")
(eq_attr "type" "neon_fp_reduc_minmax_s, neon_fp_reduc_minmax_s_q,\
neon_fp_reduc_minmax_d, neon_fp_reduc_minmax_d_q")
(const_string "neon_fp_reduc_minmax")
(eq_attr "type" "neon_fp_reduc_add_s, neon_fp_reduc_add_s_q,\
neon_fp_reduc_add_d, neon_fp_reduc_add_d_q")
(const_string "neon_fp_reduc_add")
(eq_attr "type" "neon_fp_round_s, neon_fp_round_s_q,\
neon_fp_round_d, neon_fp_round_d_q")
(const_string "neon_fp_round")
(eq_attr "type" "neon_fp_cvt_narrow_s_q, neon_fp_cvt_widen_h,
neon_fp_to_int_s, neon_fp_to_int_s_q,\
neon_fp_to_int_d_q, neon_fp_to_int_d,\
neon_int_to_fp_s, neon_int_to_fp_s_q,\
neon_int_to_fp_d, neon_int_to_fp_d_q")
(const_string "neon_fp_cvt")
(eq_attr "type" "neon_fp_mul_s, neon_fp_mul_s_q,\
neon_fp_mul_s_scalar, neon_fp_mul_s_scalar_q,\
neon_fp_mul_d, neon_fp_mul_d_q,\
neon_fp_mul_d_scalar_q")
(const_string "neon_fp_mul")
(eq_attr "type" "neon_fp_mla_s, neon_fp_mla_s_q,\
neon_fp_mla_s_scalar,neon_fp_mla_s_scalar_q,\
neon_fp_mla_d, neon_fp_mla_d_q,\
neon_fp_mla_d_scalar_q")
(const_string "neon_fp_mla")
(eq_attr "type" "neon_fp_recpe_s, neon_fp_recpe_s_q,\
neon_fp_rsqrte_s, neon_fp_rsqrte_s_q,\
neon_fp_recpe_d, neon_fp_recpe_d_q,\
neon_fp_rsqrte_d, neon_fp_rsqrte_d_q")
(const_string "neon_fp_estimate")
(eq_attr "type" "neon_fp_recpx_s, neon_fp_recpx_s_q,\
neon_fp_recpx_d, neon_fp_recpx_d_q")
(const_string "neon_fp_estimatex")
(eq_attr "type" "neon_fp_recps_s, neon_fp_recps_s_q,\
neon_fp_rsqrts_s, neon_fp_rsqrts_s_q,\
neon_fp_recps_d, neon_fp_recps_d_q,\
neon_fp_rsqrts_d, neon_fp_rsqrts_d_q")
(const_string "neon_fp_step")
(eq_attr "type" "neon_rbit, neon_rbit_q,\
neon_cls, neon_cls_q, neon_cnt, neon_cnt_q,\
neon_dup, neon_dup_q,\
neon_rev, neon_rev_q,\
neon_move, neon_move_q,
neon_ext, neon_permute, neon_zip")
(const_string "neon_bitops")
(eq_attr "type" "neon_ext_q, neon_permute_q, neon_zip_q")
(const_string "neon_bitops_q")
(eq_attr "type" "neon_bsl, neon_bsl_q")
(const_string "neon_bitins")
(eq_attr "type" "neon_tbl1, neon_tbl2, neon_tbl3, neon_tbl4")
(const_string "neon_tbl")
(eq_attr "type" "neon_from_gp, neon_from_gp_q, f_mcr, f_mcrr")
(const_string "neon_from_gp")
(eq_attr "type" "neon_to_gp, neon_to_gp_q, f_mrc, f_mrrc")
(const_string "neon_to_gp")
(eq_attr "type" "neon_load1_1reg, neon_load1_1reg_q")
(const_string "neon_load1_1")
(eq_attr "type" "neon_load1_2reg, neon_load1_2reg_q")
(const_string "neon_load1_2")
(eq_attr "type" "neon_load1_3reg, neon_load1_3reg_q")
(const_string "neon_load1_3")
(eq_attr "type" "neon_load1_4reg, neon_load1_4reg_q")
(const_string "neon_load1_4")
(eq_attr "type" "neon_load1_one_lane, neon_load1_one_lane_q")
(const_string "neon_load1_one")
(eq_attr "type" "neon_load1_all_lanes, neon_load1_all_lanes_q")
(const_string "neon_load1_all")
(eq_attr "type" "neon_load2_2reg, neon_load2_2reg_q,\
neon_load2_4reg, neon_load2_4reg_q")
(const_string "neon_load2_2")
(eq_attr "type" "neon_load2_one_lane, neon_load2_one_lane_q")
(const_string "neon_load2_one")
(eq_attr "type" "neon_load2_all_lanes, neon_load2_all_lanes_q")
(const_string "neon_load2_all")
(eq_attr "type" "neon_load3_3reg, neon_load3_3reg_q")
(const_string "neon_load3_3")
(eq_attr "type" "neon_load3_one_lane, neon_load3_one_lane_q")
(const_string "neon_load3_one")
(eq_attr "type" "neon_load3_all_lanes, neon_load3_all_lanes_q")
(const_string "neon_load3_all")
(eq_attr "type" "neon_load4_4reg, neon_load4_4reg_q")
(const_string "neon_load4_4")
(eq_attr "type" "neon_load4_one_lane, neon_load4_one_lane_q")
(const_string "neon_load4_one")
(eq_attr "type" "neon_load4_all_lanes, neon_load4_all_lanes_q")
(const_string "neon_load4_all")
(eq_attr "type" "neon_store1_1reg, neon_store1_1reg_q")
(const_string "neon_store1_1")
(eq_attr "type" "neon_store1_2reg, neon_store1_2reg_q")
(const_string "neon_store1_2")
(eq_attr "type" "neon_store1_3reg, neon_store1_3reg_q")
(const_string "neon_store1_3")
(eq_attr "type" "neon_store1_4reg, neon_store1_4reg_q")
(const_string "neon_store1_4")
(eq_attr "type" "neon_store1_one_lane, neon_store1_one_lane_q")
(const_string "neon_store1_one")
(eq_attr "type" "neon_store2_2reg, neon_store2_2reg_q,\
neon_store2_4reg, neon_store2_4reg_q")
(const_string "neon_store2_2")
(eq_attr "type" "neon_store2_one_lane, neon_store2_one_lane_q")
(const_string "neon_store2_one")
(eq_attr "type" "neon_store3_3reg, neon_store3_3reg_q")
(const_string "neon_store3_3")
(eq_attr "type" "neon_store3_one_lane, neon_store3_one_lane_q")
(const_string "neon_store3_one")
(eq_attr "type" "neon_store4_4reg, neon_store4_4reg_q")
(const_string "neon_store4_4")
(eq_attr "type" "neon_store4_one_lane, neon_store4_one_lane_q")
(const_string "neon_store4_one")]
(const_string "unknown")))
;; The Exynos M1 core is modeled as a triple issue pipeline that has
;; the following functional units.
(define_automaton "exynos_m1_gp")
(define_automaton "exynos_m1_ls")
(define_automaton "exynos_m1_fp")
;; 1. Two pipelines for simple integer operations: A, B
;; 2. One pipeline for simple or complex integer operations: C
(define_cpu_unit "em1_xa, em1_xb, em1_xc" "exynos_m1_gp")
(define_reservation "em1_alu" "(em1_xa | em1_xb | em1_xc)")
(define_reservation "em1_c" "em1_xc")
;; 3. Two asymmetric pipelines for Neon and FP operations: F0, F1
(define_cpu_unit "em1_f0, em1_f1" "exynos_m1_fp")
(define_reservation "em1_fmac" "em1_f0")
(define_reservation "em1_fcvt" "em1_f0")
(define_reservation "em1_nalu" "(em1_f0 | em1_f1)")
(define_reservation "em1_nalu0" "em1_f0")
(define_reservation "em1_nalu1" "em1_f1")
(define_reservation "em1_nmisc" "em1_f0")
(define_reservation "em1_ncrypt" "em1_f0")
(define_reservation "em1_fadd" "em1_f1")
(define_reservation "em1_fvar" "em1_f1")
(define_reservation "em1_fst" "em1_f1")
;; 4. One pipeline for branch operations: BX
(define_cpu_unit "em1_bx" "exynos_m1_gp")
(define_reservation "em1_br" "em1_bx")
;; 5. One AGU for loads: L
;; One AGU for stores and one pipeline for stores: S, SD
(define_cpu_unit "em1_lx" "exynos_m1_ls")
(define_cpu_unit "em1_sx, em1_sd" "exynos_m1_ls")
(define_reservation "em1_ld" "em1_lx")
(define_reservation "em1_st" "(em1_sx + em1_sd)")
;; Common occurrences
(define_reservation "em1_sfst" "(em1_fst + em1_st)")
(define_reservation "em1_lfst" "(em1_fst + em1_ld)")
;; Branches
;;
;; No latency as there is no result
;; TODO: Unconditional branches use no units;
;; conditional branches add the BX unit;
;; indirect branches add the C unit.
(define_insn_reservation "exynos_m1_branch" 0
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "branch"))
"em1_br")
(define_insn_reservation "exynos_m1_call" 1
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "call"))
"em1_alu")
;; Basic ALU
;;
;; Simple ALU without shift, non-predicated
(define_insn_reservation "exynos_m1_alu" 1
(and (eq_attr "tune" "exynosm1")
(and (not (eq_attr "predicated" "yes"))
(eq_attr "type" "alu_imm, alus_imm, logic_imm, logics_imm,\
alu_sreg, alus_sreg, logic_reg, logics_reg,\
adc_imm, adcs_imm, adc_reg, adcs_reg,\
adr, bfm, bfx, clz, rbit, rev, csel, alu_dsp_reg,\
shift_imm, shift_reg, rotate_imm, extend,\
mov_imm, mov_reg,\
mvn_imm, mvn_reg,\
mrs, multiple")))
"em1_alu")
;; Simple ALU without shift, predicated
(define_insn_reservation "exynos_m1_alu_p" 1
(and (eq_attr "tune" "exynosm1")
(and (eq_attr "predicated" "yes")
(eq_attr "type" "alu_imm, alus_imm, logic_imm, logics_imm,\
alu_sreg, alus_sreg, logic_reg, logics_reg,\
adc_imm, adcs_imm, adc_reg, adcs_reg,\
adr, bfm, bfx, clz, rbit, rev, alu_dsp_reg,\
shift_imm, shift_reg, rotate_imm, extend,\
mov_imm, mov_reg,\
mvn_imm, mvn_reg,\
mrs, multiple")))
"em1_c")
;; ALU ops with immediate shift
;; TODO: if the shift value is between 0 and 3, the latency is just 1 cycle;
;; otherwise it takes 2 cycles and the unit is blocked;
;; for now, assume the latter's latency and the former's units.
(define_insn_reservation "exynos_m1_alu_shift" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "alu_ext, alus_ext,\
alu_shift_imm_lsl_1to4,alu_shift_imm_other, alus_shift_imm,\
logic_shift_imm, logics_shift_imm,\
mov_shift, mvn_shift"))
"(em1_alu)")
;; ALU ops with register controlled shift, non-predicated
(define_insn_reservation "exynos_m1_alu_shift_reg" 2
(and (eq_attr "tune" "exynosm1")
(and (not (eq_attr "predicated" "yes"))
(eq_attr "type" "alu_shift_reg, alus_shift_reg,\
logic_shift_reg, logics_shift_reg,\
mov_shift_reg, mvn_shift_reg")))
"(em1_alu * 2)")
;; ALU ops with register controlled shift, predicated
(define_insn_reservation "exynos_m1_alu_shift_reg_p" 2
(and (eq_attr "tune" "exynosm1")
(and (eq_attr "predicated" "yes")
(eq_attr "type" "alu_shift_reg, alus_shift_reg,\
logic_shift_reg, logics_shift_reg,\
mov_shift_reg, mvn_shift_reg")))
"(em1_alu, em1_c)")
;; Integer multiply
(define_insn_reservation "exynos_m1_mla" 3
(and (eq_attr "tune" "exynosm1")
(eq_attr "mul32" "yes"))
"em1_c")
(define_insn_reservation "exynos_m1_mlal" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "widen_mul64" "yes"))
"em1_alu, em1_c")
;; Integer divide
;; TODO: assume the median latency; blocks other divisions
(define_insn_reservation "exynos_m1_div" 13
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "udiv, sdiv"))
"em1_c")
;; Load-store execution Unit
;;
;; Loads of up to 2 words.
(define_insn_reservation "exynos_m1_load" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "load_byte, load_4, load_8"))
"em1_ld")
;; Loads of 3 or 4 words.
(define_insn_reservation "exynos_m1_loadm" 6
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "load_12, load_16"))
"(em1_ld * 3)")
;; Stores of up to 2 words.
(define_insn_reservation "exynos_m1_store" 1
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "store_4, store_8"))
"em1_st")
;; Stores of 3 or 4 words.
(define_insn_reservation "exynos_m1_storem" 3
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "store_12, store_16"))
"(em1_st * 3)")
;; Advanced SIMD Unit
;;
;; Integer Arithmetic Instructions.
(define_insn_reservation "exynos_m1_arith_simple" 1
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_arith_simple"))
"em1_nmisc")
(define_insn_reservation "exynos_m1_neon_arith_basic" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_arith_basic"))
"em1_nalu")
(define_insn_reservation "exynos_m1_neon_arith_complex" 3
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_arith_complex"))
"em1_nmisc")
;; Integer Multiply Instructions.
(define_insn_reservation "exynos_m1_neon_multiply" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type"
"neon_multiply, neon_mla, neon_sat_mla_long"))
"em1_nmisc")
;; Integer Shift Instructions.
(define_insn_reservation
"exynos_m1_neon_shift_acc" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_shift_acc"))
"em1_nalu1")
(define_insn_reservation
"exynos_m1_neon_shift_basic" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type"
"neon_shift_imm_basic, neon_shift_reg_basic"))
"em1_nalu")
(define_insn_reservation
"exynos_m1_neon_shift_complex" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type"
"neon_shift_imm_complex, neon_shift_reg_complex"))
"em1_nalu1")
;; Floating Point Instructions.
(define_insn_reservation
"exynos_m1_neon_fp_unary" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_unary"))
"em1_nalu")
(define_insn_reservation
"exynos_m1_neon_fp_add" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_add"))
"em1_fadd")
(define_insn_reservation
"exynos_m1_neon_fp_abd" 3
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_abd"))
"em1_nmisc")
(define_insn_reservation
"exynos_m1_neon_fp_compare" 1
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_compare"))
"em1_nmisc")
;; TODO: the latency and throughput of reduce insns actually varies between
;; 3-5 and 1/4-1, but picked the median values.
(define_insn_reservation
"exynos_m1_neon_fp_reduc" 5
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_reduc_minmax"))
"(em1_nmisc * 4)")
(define_insn_reservation
"exynos_m1_neon_fp_reduc_add" 10
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_reduc_add"))
"((em1_nalu * 2), em1_fadd)")
(define_insn_reservation
"exynos_m1_neon_fp_round" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_round"))
"em1_fcvt")
(define_insn_reservation
"exynos_m1_neon_fp_cvt" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_cvt"))
"em1_fcvt")
(define_insn_reservation
"exynos_m1_neon_fp_mul" 5
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_mul"))
"em1_fmac")
(define_insn_reservation
"exynos_m1_neon_fp_mla" 6
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_mla"))
"em1_fmac")
(define_insn_reservation
"exynos_m1_neon_fp_estimate" 5
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_estimate"))
"em1_fcvt")
(define_insn_reservation
"exynos_m1_neon_fp_estimatex" 1
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_estimatex"))
"em1_nmisc")
(define_insn_reservation
"exynos_m1_neon_fp_step" 6
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_fp_step"))
"em1_fmac")
;; Miscellaneous Instructions.
(define_insn_reservation
"exynos_m1_neon_bitops" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_bitops"))
"em1_nalu")
(define_insn_reservation
"exynos_m1_neon_bitops_q" 3
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_bitops_q"))
"(em1_nalu, em1_nalu)")
(define_insn_reservation
"exynos_m1_neon_bitins" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_bitins"))
"em1_nalu1")
;; TODO: it is more complicated than this.
(define_insn_reservation
"exynos_m1_neon_tbl" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_tbl"))
"em1_nalu1")
(define_insn_reservation
"exynos_m1_neon_from_gp" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_from_gp"))
"em1_st")
(define_insn_reservation
"exynos_m1_neon_to_gp" 9
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_to_gp"))
"em1_lfst")
;; Load Instructions.
(define_insn_reservation
"exynos_m1_neon_load" 5
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "f_loads, f_loadd, neon_ldp"))
"em1_ld")
(define_insn_reservation
"exynos_m1_neon_load_q" 6
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "neon_ldp_q"))
"(em1_ld, em1_ld)")
(define_insn_reservation
"exynos_m1_neon_load1_1" 6
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load1_1, neon_load1_all"))
"em1_ld")
(define_insn_reservation
"exynos_m1_neon_load1_2" 6
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load1_2"))
"(em1_ld * 2)")
(define_insn_reservation
"exynos_m1_neon_load1_3" 7
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load1_3"))
"(em1_ld * 3)")
(define_insn_reservation
"exynos_m1_neon_load1_4" 8
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load1_4"))
"(em1_ld * 4)")
(define_insn_reservation
"exynos_m1_neon_load1_one" 7
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load1_one"))
"((em1_ld * 2), em1_nalu)")
(define_insn_reservation
"exynos_m1_neon_load2_2" 10
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load2_2"))
"(em1_ld * 5)")
(define_insn_reservation
"exynos_m1_neon_load2_one" 7
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load2_one"))
"((em1_ld * 2), (em1_nalu * 2))")
(define_insn_reservation
"exynos_m1_neon_load2_all" 6
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load2_all"))
"(em1_ld * 2)")
(define_insn_reservation
"exynos_m1_neon_load3_3" 12
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load3_3"))
"(em1_ld * 6)")
(define_insn_reservation
"exynos_m1_neon_load3_one" 9
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load3_one"))
"((em1_ld * 4), (em1_nalu * 3))")
(define_insn_reservation
"exynos_m1_neon_load3_all" 7
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load3_all"))
"(em1_ld * 3)")
(define_insn_reservation
"exynos_m1_neon_load4_4" 14
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load4_4"))
"(em1_ld * 7)")
(define_insn_reservation
"exynos_m1_neon_load4_one" 9
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load4_one"))
"((em1_ld * 4), (em1_nalu * 4))")
(define_insn_reservation
"exynos_m1_neon_load4_all" 8
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_load4_all"))
"(em1_ld * 4)")
;; Store Instructions.
(define_insn_reservation
"exynos_m1_neon_store" 1
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "f_stores, f_stored, neon_stp"))
"em1_sfst")
(define_insn_reservation
"exynos_m1_neon_store_q" 3
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "neon_stp_q"))
"(em1_sfst * 2)")
(define_insn_reservation
"exynos_m1_neon_store1_1" 1
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_store1_1"))
"em1_sfst")
(define_insn_reservation
"exynos_m1_neon_store1_2" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_store1_2"))
"(em1_sfst * 2)")
(define_insn_reservation
"exynos_m1_neon_store1_3" 3
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_store1_3"))
"(em1_sfst * 3)")
(define_insn_reservation
"exynos_m1_neon_store1_4" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_store1_4"))
"(em1_sfst * 4)")
(define_insn_reservation
"exynos_m1_neon_store1_one" 7
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_store1_one"))
"em1_sfst")
(define_insn_reservation
"exynos_m1_neon_store2" 7
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_store2_2, neon_store2_one"))
"em1_sfst, em1_fst")
(define_insn_reservation
"exynos_m1_neon_store3" 16
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_store3_3, neon_store3_one"))
"((em1_sfst * 3), (em1_fst * 2), em1_nalu)")
(define_insn_reservation
"exynos_m1_neon_store4" 17
(and (eq_attr "tune" "exynosm1")
(eq_attr "exynos_m1_neon_type" "neon_store4_4, neon_store4_one"))
"((em1_sfst * 4), (em1_fst * 2), em1_nalu)")
;; Floating-Point Operations.
(define_insn_reservation "exynos_m1_fp_const" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fconsts, fconstd"))
"em1_nalu")
(define_insn_reservation "exynos_m1_fp_add" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fadds, faddd"))
"em1_fadd")
(define_insn_reservation "exynos_m1_fp_mul" 5
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fmuls, fmuld"))
"em1_fmac")
(define_insn_reservation "exynos_m1_fp_mac" 6
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fmacs, ffmas, fmacd, ffmad"))
"em1_fmac")
(define_insn_reservation "exynos_m1_fp_cvt" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "f_cvt, f_rints, f_rintd"))
"em1_fcvt")
(define_insn_reservation "exynos_m1_fp_cvt_i" 13
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "f_cvtf2i"))
"(em1_fcvt, em1_lfst)")
(define_insn_reservation "exynos_m1_i_cvt_fp" 9
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "f_cvti2f"))
"(em1_st, em1_fcvt)")
(define_insn_reservation "exynos_m1_fp_cmp" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fcmps, fcmpd"))
"em1_nmisc")
(define_insn_reservation "exynos_m1_fp_ccmp" 7
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fccmps, fccmpd"))
"(em1_st, em1_nmisc)")
(define_insn_reservation "exynos_m1_fp_sel" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fcsel"))
"(em1_st + em1_nalu0)")
(define_insn_reservation "exynos_m1_fp_arith" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "ffariths, ffarithd"))
"em1_nalu")
(define_insn_reservation "exynos_m1_fp_cpy" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fmov"))
"em1_nalu")
(define_insn_reservation "exynos_m1_fp_divs" 15
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fdivs, neon_fp_div_s, neon_fp_div_s_q,\
fsqrts, neon_fp_sqrt_s, neon_fp_sqrt_s_q"))
"(em1_fvar * 9)")
(define_insn_reservation "exynos_m1_fp_divd" 22
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "fdivd, neon_fp_div_d, neon_fp_div_d_q,\
fsqrtd, neon_fp_sqrt_d, neon_fp_sqrt_d_q"))
"(em1_fvar * 9)")
(define_insn_reservation "exynos_m1_fp_minmax" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "f_minmaxs, f_minmaxd"))
"(em1_nmisc * 2)")
;; Crypto Operations.
(define_insn_reservation "exynos_m1_crypto_simple" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "crypto_aese, crypto_aesmc,\
crypto_sha1_xor, crypto_sha1_fast, crypto_sha256_fast"))
"em1_ncrypt")
(define_insn_reservation "exynos_m1_crypto_complex" 6
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "crypto_sha1_slow, crypto_sha256_slow"))
"em1_ncrypt")
(define_insn_reservation "exynos_m1_crypto_poly" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "neon_mul_b_long, neon_mul_h_long, neon_mul_s_long"))
"em1_ncrypt")
(define_insn_reservation "exynos_m1_crypto_polyl" 4
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "neon_mul_d_long"))
"em1_ncrypt")
(define_insn_reservation "exynos_m1_crc" 2
(and (eq_attr "tune" "exynosm1")
(eq_attr "type" "crc"))
"em1_c")
;; Simple execution unit bypasses
;; Pre-decrement and post-increment addressing modes update the register quickly.
;; TODO: figure out how to tell the addressing mode register from the loaded one.
(define_bypass 1 "exynos_m1_store*, exynos_m1_neon_store*"
"exynos_m1_store*, exynos_m1_neon_store*,
exynos_m1_load*, exynos_m1_neon_load*")
;; MLAs can feed other MLAs quickly.
(define_bypass 1 "exynos_m1_mla*" "exynos_m1_mla*")
;; Insns in FMAC or FADD can feed other such insns quickly.
(define_bypass 4 "exynos_m1_fp_mul"
"exynos_m1_fp_add, exynos_m1_fp_mul, exynos_m1_fp_mac")
(define_bypass 5 "exynos_m1_fp_mac"
"exynos_m1_fp_add, exynos_m1_fp_mul, exynos_m1_fp_mac")
(define_bypass 4 "exynos_m1_neon_fp_mul"
"exynos_m1_neon_fp_add, exynos_m1_neon_fp_mul,\
exynos_m1_neon_fp_mla, exynos_m1_neon_fp_step")
(define_bypass 5 "exynos_m1_neon_fp_mla, exynos_m1_neon_fp_step"
"exynos_m1_neon_fp_add, exynos_m1_neon_fp_mul,\
exynos_m1_neon_fp_mla, exynos_m1_neon_fp_step")
(define_bypass 3 "exynos_m1_fp_add"
"exynos_m1_fp_add, exynos_m1_fp_mul, exynos_m1_fp_mac")
(define_bypass 3 "exynos_m1_neon_fp_add"
"exynos_m1_neon_fp_add, exynos_m1_neon_fp_mul,\
exynos_m1_neon_fp_mla, exynos_m1_neon_fp_step")
;; Insns in NALU can feed other such insns quickly.
(define_bypass 1 "exynos_m1_fp_const, exynos_m1_fp_arith, exynos_m1_fp_cpy"
"exynos_m1_fp_const, exynos_m1_fp_arith, exynos_m1_fp_cpy,\
exynos_m1_fp_sel")
(define_bypass 3 "exynos_m1_fp_sel"
"exynos_m1_fp_const, exynos_m1_fp_arith, exynos_m1_fp_cpy,\
exynos_m1_fp_sel")
(define_bypass 1 "exynos_m1_neon_arith_basic, exynos_m1_neon_shift_basic,\
exynos_m1_neon_bitops, exynos_m1_neon_bitins,\
exynos_m1_neon_tbl"
"exynos_m1_neon_arith_basic, exynos_m1_neon_shift_basic,\
exynos_m1_neon_shift_acc, exynos_m1_neon_shift_complex,\
exynos_m1_neon_bitops*, exynos_m1_neon_bitins,\
exynos_m1_neon_tbl")
(define_bypass 3 "exynos_m1_neon_shift_acc, exynos_m1_neon_shift_complex"
"exynos_m1_neon_arith_basic, exynos_m1_neon_shift_basic,\
exynos_m1_neon_shift_acc, exynos_m1_neon_shift_complex,\
exynos_m1_neon_bitops*, exynos_m1_neon_bitins,\
exynos_m1_neon_tbl")
(define_bypass 1 "exynos_m1_neon_fp_unary" "exynos_m1_neon_fp_unary")
;; Insns in NCRYPT can feed other such insns quickly.
(define_bypass 1 "exynos_m1_crypto_simple, exynos_m1_crypto_poly"
"exynos_m1_crypto_simple, exynos_m1_crypto_complex,\
exynos_m1_crypto_poly*")
(define_bypass 3 "exynos_m1_crypto_polyl"
"exynos_m1_crypto_simple, exynos_m1_crypto_complex,\
exynos_m1_crypto_poly*")
(define_bypass 5 "exynos_m1_crypto_complex"
"exynos_m1_crypto_simple, exynos_m1_crypto_complex,\
exynos_m1_crypto_poly*")
;; Predicted branches take no time, but mispredicted ones take forever anyway.
(define_bypass 1 "exynos_m1_*"
"exynos_m1_call, exynos_m1_branch")