;; DFA scheduling description of the Synopsys DesignWare ARC600 cpu ;; for GNU C compiler ;; Copyright (C) 2007-2021 Free Software Foundation, Inc. ;; Contributor: Joern Rennecke joern.rennecke@embecosm.com ;; on behalf of Synopsys 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 “ARC600”)

(define_cpu_unit “issue_600” “ARC600”) (define_cpu_unit “mul64_600” “ARC600”)

; latency from flag-setting insns to branches is 3. (define_insn_reservation “compare_600” 3 (and (eq_attr “tune” “arc600”) (eq_attr “type” “compare”)) “issue_600”)

(define_insn_reservation “load_DI_600” 4 (and (eq_attr “tune” “arc600”) (eq_attr “type” “load”) (match_operand:DI 0 "" "")) “issue_600”)

(define_insn_reservation “load_600” 3 (and (eq_attr “tune” “arc600”) (eq_attr “type” “load”) (not (match_operand:DI 0 "" ""))) “issue_600”)

(define_insn_reservation “mul_600_fast” 3 (and (eq_attr “tune” “arc600”) (match_test “arc_multcost < COSTS_N_INSNS (7)”) (eq_attr “type” “multi,umulti”)) “mul64_600*3”)

(define_insn_reservation “mul_600_slow” 8 (and (eq_attr “tune” “arc600”) (match_test “arc_multcost >= COSTS_N_INSNS (7)”) (eq_attr “type” “multi,umulti”)) “mul64_600*8”)

(define_insn_reservation “mul_mac_600” 3 (and (eq_attr “tune” “arc600”) (eq_attr “type” “mulmac_600”)) “nothing*3”)

(define_bypass 1 “mul_mac_600” “mul_mac_600”)