gcc/config/riscv/generic.md

   1 ;; Generic DFA-based pipeline description for RISC-V targets.
   2 ;; Copyright (C) 2011-2019 Free Software Foundation, Inc.
   3 ;; Contributed by Andrew Waterman (andrew@sifive.com).
   4 ;; Based on MIPS target for GNU compiler.
   5
   6 ;; This file is part of GCC.
   7
   8 ;; GCC is free software; you can redistribute it and/or modify it
   9 ;; under the terms of the GNU General Public License as published
  10 ;; by the Free Software Foundation; either version 3, or (at your
  11 ;; option) any later version.
  12
  13 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
  14 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15 ;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16 ;; License for more details.
  17
  18 ;; You should have received a copy of the GNU General Public License
  19 ;; along with GCC; see the file COPYING3.  If not see
  20 ;; <http://www.gnu.org/licenses/>.
  21
  22
  23 (define_automaton "pipe0")
  24 (define_cpu_unit "alu" "pipe0")
  25 (define_cpu_unit "imuldiv" "pipe0")
  26 (define_cpu_unit "fdivsqrt" "pipe0")
  27
  28 (define_insn_reservation "generic_alu" 1
  29   (eq_attr "type" "unknown,const,arith,shift,slt,multi,nop,logical,move")
  30   "alu")
  31
  32 (define_insn_reservation "generic_load" 3
  33   (eq_attr "type" "load,fpload")
  34   "alu")
  35
  36 (define_insn_reservation "generic_store" 1
  37   (eq_attr "type" "store,fpstore")
  38   "alu")
  39
  40 (define_insn_reservation "generic_xfer" 3
  41   (eq_attr "type" "mfc,mtc,fcvt,fmove,fcmp")
  42   "alu")
  43
  44 (define_insn_reservation "generic_branch" 1
  45   (eq_attr "type" "branch,jump,call")
  46   "alu")
  47
  48 (define_insn_reservation "generic_imul" 10
  49   (eq_attr "type" "imul")
  50   "imuldiv*10")
  51
  52 (define_insn_reservation "generic_idivsi" 34
  53   (and (eq_attr "type" "idiv")
  54        (eq_attr "mode" "SI"))
  55   "imuldiv*34")
  56
  57 (define_insn_reservation "generic_idivdi" 66
  58   (and (eq_attr "type" "idiv")
  59        (eq_attr "mode" "DI"))
  60   "imuldiv*66")
  61
  62 (define_insn_reservation "generic_fmul_single" 5
  63   (and (eq_attr "type" "fadd,fmul,fmadd")
  64        (eq_attr "mode" "SF"))
  65   "alu")
  66
  67 (define_insn_reservation "generic_fmul_double" 7
  68   (and (eq_attr "type" "fadd,fmul,fmadd")
  69        (eq_attr "mode" "DF"))
  70   "alu")
  71
  72 (define_insn_reservation "generic_fdiv" 20
  73   (eq_attr "type" "fdiv")
  74   "fdivsqrt*20")
  75
  76 (define_insn_reservation "generic_fsqrt" 25
  77   (eq_attr "type" "fsqrt")
  78   "fdivsqrt*25")