;; DFA-based pipeline description for the RM9000. ;; Copyright (C) 2003-2021 Free Software Foundation, Inc. ;; ;; 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 ;; http://www.gnu.org/licenses/.

(define_automaton “rm9k_main, rm9k_imul, rm9k_fdiv”)

;; These units are for insns that can issue in either pipe. We don't ;; want to use constructs like “rm9k_m | rm9k_f_int” since that would ;; needlessly make an insn prefer the M pipe. (define_cpu_unit “rm9k_any1” “rm9k_main”) (define_cpu_unit “rm9k_any2” “rm9k_main”)

;; F and M pipe units, for instructions that must be issued by a ;; particular pipe. Split the F pipe into two units so that integer ;; instructions can issue while the FPU is busy. We don't need to ;; split M because it is only ever reserved for a single cycle. (define_cpu_unit “rm9k_m” “rm9k_main”) (define_cpu_unit “rm9k_f_int” “rm9k_main”) (define_cpu_unit “rm9k_f_float” “rm9k_main”)

(exclusion_set “rm9k_f_int” “rm9k_f_float”)

;; Multiply/divide units. (define_cpu_unit “rm9k_imul” “rm9k_imul”) (define_cpu_unit “rm9k_fdiv” “rm9k_fdiv”)

(define_insn_reservation “rm9k_load” 3 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “load,fpload,fpidxload”)) “rm9k_m”)

(define_insn_reservation “rm9k_store” 1 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “store,fpstore,fpidxstore”)) “rm9k_m”)

(define_insn_reservation “rm9k_int” 1 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “arith,shift,signext,slt,clz,const,logical,move,nop,trap”)) “rm9k_any1 | rm9k_any2”)

(define_insn_reservation “rm9k_int_cmove” 2 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “condmove”) (eq_attr “mode” “SI,DI”))) “rm9k_any1 | rm9k_any2”)

;; This applies to both ‘mul’ and ‘mult’. (define_insn_reservation “rm9k_mulsi” 3 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “imul,imul3,imadd”) (eq_attr “mode” “!DI”))) “rm9k_f_int”)

(define_insn_reservation “rm9k_muldi” 7 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “imul,imul3,imadd”) (eq_attr “mode” “DI”))) “rm9k_f_int + rm9k_imul * 7”)

(define_insn_reservation “rm9k_divsi” 38 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “idiv”) (eq_attr “mode” “!DI”))) “rm9k_f_int + rm9k_imul * 38”)

(define_insn_reservation “rm9k_divdi” 70 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “idiv”) (eq_attr “mode” “DI”))) “rm9k_f_int + rm9k_imul * 70”)

(define_insn_reservation “rm9k_mfhilo” 1 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “mfhi,mflo”)) “rm9k_f_int”)

(define_insn_reservation “rm9k_mthilo” 5 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “mthi,mtlo”)) “rm9k_f_int”)

(define_insn_reservation “rm9k_xfer” 2 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “mfc,mtc”)) “rm9k_m”)

(define_insn_reservation “rm9k_fquick” 2 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “fabs,fneg,fcmp,fmove”)) “rm9k_f_float”)

(define_insn_reservation “rm9k_fcmove” 2 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “condmove”) (eq_attr “mode” “SF,DF”))) “rm9k_m”)

(define_insn_reservation “rm9k_fadd” 6 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “fadd,fcvt”)) “rm9k_f_float”)

(define_insn_reservation “rm9k_fmuls” 6 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “fmul,fmadd”) (eq_attr “mode” “SF”))) “rm9k_f_float”)

(define_insn_reservation “rm9k_fmuld” 9 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “fmul,fmadd”) (eq_attr “mode” “DF”))) “rm9k_f_float * 3”)

(define_insn_reservation “rm9k_fdivs” 22 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “fdiv,frdiv,fsqrt,frsqrt”) (eq_attr “mode” “SF”))) “rm9k_f_float + rm9k_fdiv * 22”)

(define_insn_reservation “rm9k_fdivd” 37 (and (eq_attr “cpu” “r9000”) (and (eq_attr “type” “fdiv,frdiv,fsqrt,frsqrt”) (eq_attr “mode” “DF”))) “rm9k_f_float + rm9k_fdiv * 37”)

(define_insn_reservation “rm9k_branch” 2 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “branch,jump,call”)) “rm9k_any1 | rm9k_any2”)

(define_insn_reservation “rm9k_unknown” 1 (and (eq_attr “cpu” “r9000”) (eq_attr “type” “unknown,multi,atomic,syncloop”)) “rm9k_m + rm9k_f_int + rm9k_any1 + rm9k_any2”)