gcc/config/sparc/leon.md

   1 ;; Scheduling description for LEON.
   2 ;;   Copyright (C) 2010-2024 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
   7 ;; it 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,
  12 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ;; GNU 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 ;; Leon is a single-issue processor.
  21
  22 (define_automaton "leon")
  23
  24 (define_cpu_unit "leon_memory" "leon")
  25
  26 (define_insn_reservation "leon_load" 1
  27   (and (eq_attr "cpu" "leon,leon3,leon3v7")
  28        (and (eq_attr "fix_ut699" "false") (eq_attr "type" "load,sload")))
  29   "leon_memory")
  30
  31 ;; Use a double reservation to work around the load pipeline hazard on UT699.
  32 (define_insn_reservation "ut699_load" 1
  33   (and (eq_attr "cpu" "leon,leon3,leon3v7")
  34        (and (eq_attr "fix_ut699" "true") (eq_attr "type" "load,sload")))
  35   "leon_memory*2")
  36
  37 (define_insn_reservation "leon_store" 2
  38   (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "store"))
  39   "leon_memory*2")
  40
  41 ;; This describes Gaisler Research's FPU
  42
  43 (define_automaton "grfpu")
  44
  45 (define_cpu_unit "grfpu_alu" "grfpu")
  46 (define_cpu_unit "grfpu_ds" "grfpu")
  47
  48 (define_insn_reservation "leon_fp_alu" 4
  49   (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fp,fpcmp,fpmul"))
  50   "grfpu_alu, nothing*3")
  51
  52 (define_insn_reservation "leon_fp_divs" 16
  53   (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fpdivs"))
  54   "grfpu_ds*14, nothing*2")
  55
  56 (define_insn_reservation "leon_fp_divd" 17
  57   (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fpdivd"))
  58   "grfpu_ds*15, nothing*2")
  59
  60 (define_insn_reservation "leon_fp_sqrts" 24
  61   (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fpsqrts"))
  62   "grfpu_ds*22, nothing*2")
  63
  64 (define_insn_reservation "leon_fp_sqrtd" 25
  65   (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fpsqrtd"))
  66   "grfpu_ds*23, nothing*2")