Subversion Repositories hf-risc

;; Generic DFA-based pipeline description for RISC-V targets.

;; Copyright (C) 2011-2014 Free Software Foundation, Inc.

;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley.

;; Based on MIPS target for GNU compiler.

;; 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

;; .

(define_automaton "pipe0")

(define_cpu_unit "alu" "pipe0")

(define_cpu_unit "imuldiv" "pipe0")

(define_cpu_unit "fdivsqrt" "pipe0")

(define_insn_reservation "generic_alu" 1

  (eq_attr "type" "unknown,const,arith,shift,slt,multi,nop,logical,move")

  "alu")

(define_insn_reservation "generic_load" 3

  (eq_attr "type" "load,fpload")

  "alu")

(define_insn_reservation "generic_store" 1

  (eq_attr "type" "store,fpstore")

  "alu")

(define_insn_reservation "generic_xfer" 3

  (eq_attr "type" "mfc,mtc,fcvt,fmove,fcmp")

  "alu")

(define_insn_reservation "generic_branch" 1

  (eq_attr "type" "branch,jump,call")

  "alu")

(define_insn_reservation "generic_imul" 10

  (eq_attr "type" "imul")

  "imuldiv*10")

(define_insn_reservation "generic_idivsi" 34

  (and (eq_attr "type" "idiv")

       (eq_attr "mode" "SI"))

  "imuldiv*34")

(define_insn_reservation "generic_idivdi" 66

  (and (eq_attr "type" "idiv")

       (eq_attr "mode" "DI"))

  "imuldiv*66")

(define_insn_reservation "generic_fmul_single" 5

  (and (eq_attr "type" "fadd,fmul,fmadd")

       (eq_attr "mode" "SF"))

  "alu")

(define_insn_reservation "generic_fmul_double" 7

  (and (eq_attr "type" "fadd,fmul,fmadd")

       (eq_attr "mode" "DF"))

  "alu")

(define_insn_reservation "generic_fdiv" 20

  (eq_attr "type" "fdiv")

  "fdivsqrt*20")

(define_insn_reservation "generic_fsqrt" 25

  (eq_attr "type" "fsqrt")

  "fdivsqrt*25")