gcc/config/arc/arc600.md

   1 ;; DFA scheduling description of the Synopsys DesignWare ARC600 cpu
   2 ;; for GNU C compiler
   3 ;; Copyright (C) 2007-2021 Free Software Foundation, Inc.
   4 ;; Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
   5 ;;              on behalf of Synopsys Inc.
   6
   7 ;; This file is part of GCC.
   8
   9 ;; GCC is free software; you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation; either version 3, or (at your option)
  12 ;; any later version.
  13
  14 ;; GCC is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GCC; see the file COPYING3.  If not see
  21 ;; <http://www.gnu.org/licenses/>.
  22
  23 (define_automaton "ARC600")
  24
  25 (define_cpu_unit "issue_600" "ARC600")
  26 (define_cpu_unit "mul64_600" "ARC600")
  27
  28 ; latency from flag-setting insns to branches is 3.
  29 (define_insn_reservation "compare_600" 3
  30   (and (eq_attr "tune" "arc600")
  31        (eq_attr "type" "compare"))
  32   "issue_600")
  33
  34 (define_insn_reservation "load_DI_600" 4
  35   (and (eq_attr "tune" "arc600")
  36        (eq_attr "type" "load")
  37        (match_operand:DI 0 "" ""))
  38   "issue_600")
  39
  40 (define_insn_reservation "load_600" 3
  41   (and (eq_attr "tune" "arc600")
  42        (eq_attr "type" "load")
  43        (not (match_operand:DI 0 "" "")))
  44   "issue_600")
  45
  46 (define_insn_reservation "mul_600_fast" 3
  47   (and (eq_attr "tune" "arc600")
  48        (match_test "arc_multcost < COSTS_N_INSNS (7)")
  49        (eq_attr "type" "multi,umulti"))
  50   "mul64_600*3")
  51
  52 (define_insn_reservation "mul_600_slow" 8
  53   (and (eq_attr "tune" "arc600")
  54        (match_test "arc_multcost >= COSTS_N_INSNS (7)")
  55        (eq_attr "type" "multi,umulti"))
  56   "mul64_600*8")
  57
  58 (define_insn_reservation "mul_mac_600" 3
  59   (and (eq_attr "tune" "arc600")
  60        (eq_attr "type" "mulmac_600"))
  61   "nothing*3")
  62
  63 (define_bypass 1 "mul_mac_600" "mul_mac_600")