gcc/config/mips/9000.md

   1 ;; DFA-based pipeline description for the RM9000.
   2 ;;   Copyright (C) 2003 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
   8 ;; by the Free Software Foundation; either version 2, or (at your
   9 ;; option) any later version.
  10
  11 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
  12 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13 ;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14 ;; 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 COPYING.  If not, write to the
  18 ;; Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  19 ;; MA 02111-1307, USA.
  20
  21 (define_automaton "rm9k_main, rm9k_imul, rm9k_fdiv")
  22
  23 ;; These units are for insns that can issue in either pipe.  We don't
  24 ;; want to use constructs like "rm9k_m | rm9k_f_int" since that would
  25 ;; needlessly make an insn prefer the M pipe.
  26 (define_cpu_unit "rm9k_any1" "rm9k_main")
  27 (define_cpu_unit "rm9k_any2" "rm9k_main")
  28
  29 ;; F and M pipe units, for instructions that must be issued by a
  30 ;; particular pipe.  Split the F pipe into two units so that integer
  31 ;; instructions can issue while the FPU is busy.  We don't need to
  32 ;; split M because it is only ever reserved for a single cycle.
  33 (define_cpu_unit "rm9k_m" "rm9k_main")
  34 (define_cpu_unit "rm9k_f_int" "rm9k_main")
  35 (define_cpu_unit "rm9k_f_float" "rm9k_main")
  36
  37 (exclusion_set "rm9k_f_int" "rm9k_f_float")
  38
  39 ;; Multiply/divide units.
  40 (define_cpu_unit "rm9k_imul" "rm9k_imul")
  41 (define_cpu_unit "rm9k_fdiv" "rm9k_fdiv")
  42
  43 (define_insn_reservation "rm9k_load" 3
  44   (and (eq_attr "cpu" "r9000")
  45        (eq_attr "type" "load,fpload,fpidxload"))
  46   "rm9k_m")
  47
  48 (define_insn_reservation "rm9k_store" 1
  49   (and (eq_attr "cpu" "r9000")
  50        (eq_attr "type" "store,fpstore,fpidxstore"))
  51   "rm9k_m")
  52
  53 (define_insn_reservation "rm9k_int" 1
  54   (and (eq_attr "cpu" "r9000")
  55        (eq_attr "type" "move,arith,darith,const,icmp,nop"))
  56   "rm9k_any1 | rm9k_any2")
  57
  58 (define_insn_reservation "rm9k_int_cmove" 2
  59   (and (eq_attr "cpu" "r9000")
  60        (and (eq_attr "type" "condmove")
  61             (eq_attr "mode" "SI,DI")))
  62   "rm9k_any1 | rm9k_any2")
  63
  64 ;; This applies to both 'mul' and 'mult'.
  65 (define_insn_reservation "rm9k_mulsi" 3
  66   (and (eq_attr "cpu" "r9000")
  67        (and (eq_attr "type" "imul,imadd")
  68             (eq_attr "mode" "!DI")))
  69   "rm9k_f_int")
  70
  71 (define_insn_reservation "rm9k_muldi" 7
  72   (and (eq_attr "cpu" "r9000")
  73        (and (eq_attr "type" "imul,imadd")
  74             (eq_attr "mode" "DI")))
  75   "rm9k_f_int + rm9k_imul * 7")
  76
  77 (define_insn_reservation "rm9k_divsi" 38
  78   (and (eq_attr "cpu" "r9000")
  79        (and (eq_attr "type" "idiv")
  80             (eq_attr "mode" "!DI")))
  81   "rm9k_f_int + rm9k_imul * 38")
  82
  83 (define_insn_reservation "rm9k_divdi" 70
  84   (and (eq_attr "cpu" "r9000")
  85        (and (eq_attr "type" "idiv")
  86             (eq_attr "mode" "DI")))
  87   "rm9k_f_int + rm9k_imul * 70")
  88
  89 (define_insn_reservation "rm9k_mfhilo" 1
  90   (and (eq_attr "cpu" "r9000")
  91        (and (eq_attr "type" "hilo")
  92             (not (match_operand 0 "hilo_operand" ""))))
  93   "rm9k_f_int")
  94
  95 (define_insn_reservation "rm9k_mthilo" 5
  96   (and (eq_attr "cpu" "r9000")
  97        (and (eq_attr "type" "hilo")
  98             (match_operand 0 "hilo_operand" "")))
  99   "rm9k_f_int")
 100
 101 (define_insn_reservation "rm9k_xfer" 2
 102   (and (eq_attr "cpu" "r9000")
 103        (eq_attr "type" "xfer"))
 104   "rm9k_m")
 105
 106 (define_insn_reservation "rm9k_fquick" 2
 107   (and (eq_attr "cpu" "r9000")
 108        (eq_attr "type" "fabs,fneg,fcmp"))
 109   "rm9k_f_float")
 110
 111 (define_insn_reservation "rm9k_fcmove" 2
 112   (and (eq_attr "cpu" "r9000")
 113        (and (eq_attr "type" "condmove")
 114             (eq_attr "mode" "SF,DF")))
 115   "rm9k_m")
 116
 117 (define_insn_reservation "rm9k_fadd" 6
 118   (and (eq_attr "cpu" "r9000")
 119        (eq_attr "type" "fadd,fcvt"))
 120   "rm9k_f_float")
 121
 122 (define_insn_reservation "rm9k_fmuls" 6
 123   (and (eq_attr "cpu" "r9000")
 124        (and (eq_attr "type" "fmul,fmadd")
 125             (eq_attr "mode" "SF")))
 126   "rm9k_f_float")
 127
 128 (define_insn_reservation "rm9k_fmuld" 9
 129   (and (eq_attr "cpu" "r9000")
 130        (and (eq_attr "type" "fmul,fmadd")
 131             (eq_attr "mode" "DF")))
 132   "rm9k_f_float * 3")
 133
 134 (define_insn_reservation "rm9k_fdivs" 22
 135   (and (eq_attr "cpu" "r9000")
 136        (and (eq_attr "type" "fdiv,fsqrt,frsqrt")
 137             (eq_attr "mode" "SF")))
 138   "rm9k_f_float + rm9k_fdiv * 22")
 139
 140 (define_insn_reservation "rm9k_fdivd" 37
 141   (and (eq_attr "cpu" "r9000")
 142        (and (eq_attr "type" "fdiv,fsqrt,frsqrt")
 143             (eq_attr "mode" "DF")))
 144   "rm9k_f_float + rm9k_fdiv * 37")
 145
 146 (define_insn_reservation "rm9k_branch" 2
 147   (and (eq_attr "cpu" "r9000")
 148        (eq_attr "type" "branch,jump,call"))
 149   "rm9k_any1 | rm9k_any2")
 150
 151 (define_insn_reservation "rm9k_unknown" 1
 152   (and (eq_attr "cpu" "r9000")
 153        (eq_attr "type" "unknown,multi"))
 154   "rm9k_m + rm9k_f_int + rm9k_any1 + rm9k_any2")