;; Pipeline model for LoongArch LA464 cores.

;; Copyright (C) 2021-2022 Free Software Foundation, Inc. ;; Contributed by Loongson Ltd.

;; 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/.

;; Uncomment the following line to output automata for debugging. ;; (automata_option “v”)

;; Automaton for integer instructions. (define_automaton “la464_a_alu”)

;; Automaton for floating-point instructions. (define_automaton “la464_a_falu”)

;; Automaton for memory operations. (define_automaton “la464_a_mem”)

;; Describe the resources.

(define_cpu_unit “la464_alu1” “la464_a_alu”) (define_cpu_unit “la464_alu2” “la464_a_alu”) (define_cpu_unit “la464_mem1” “la464_a_mem”) (define_cpu_unit “la464_mem2” “la464_a_mem”) (define_cpu_unit “la464_falu1” “la464_a_falu”) (define_cpu_unit “la464_falu2” “la464_a_falu”)

;; Describe instruction reservations.

(define_insn_reservation “la464_arith” 1 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “arith,clz,const,logical, move,nop,shift,signext,slt”)) “la464_alu1 | la464_alu2”)

(define_insn_reservation “la464_branch” 1 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “branch,jump,call,condmove,trap”)) “la464_alu1 | la464_alu2”)

(define_insn_reservation “la464_imul” 7 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “imul”)) “la464_alu1 | la464_alu2”)

(define_insn_reservation “la464_idiv_si” 12 (and (match_test “TARGET_TUNE_LA464”) (and (eq_attr “type” “idiv”) (eq_attr “mode” “SI”))) “la464_alu1 | la464_alu2”)

(define_insn_reservation “la464_idiv_di” 25 (and (match_test “TARGET_TUNE_LA464”) (and (eq_attr “type” “idiv”) (eq_attr “mode” “DI”))) “la464_alu1 | la464_alu2”)

(define_insn_reservation “la464_load” 4 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “load”)) “la464_mem1 | la464_mem2”)

(define_insn_reservation “la464_gpr_fp” 16 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “mftg,mgtf”)) “la464_mem1”)

(define_insn_reservation “la464_fpload” 4 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “fpload”)) “la464_mem1 | la464_mem2”)

(define_insn_reservation “la464_prefetch” 0 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “prefetch,prefetchx”)) “la464_mem1 | la464_mem2”)

(define_insn_reservation “la464_store” 0 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “store,fpstore,fpidxstore”)) “la464_mem1 | la464_mem2”)

(define_insn_reservation “la464_fadd” 4 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “fadd,fmul,fmadd”)) “la464_falu1 | la464_falu2”)

(define_insn_reservation “la464_fcmp” 2 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “fabs,fcmp,fmove,fneg”)) “la464_falu1 | la464_falu2”)

(define_insn_reservation “la464_fcvt” 4 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “fcvt”)) “la464_falu1 | la464_falu2”)

(define_insn_reservation “la464_fdiv_sf” 12 (and (match_test “TARGET_TUNE_LA464”) (and (eq_attr “type” “fdiv,frdiv,fsqrt,frsqrt”) (eq_attr “mode” “SF”))) “la464_falu1 | la464_falu2”)

(define_insn_reservation “la464_fdiv_df” 19 (and (match_test “TARGET_TUNE_LA464”) (and (eq_attr “type” “fdiv,frdiv,fsqrt,frsqrt”) (eq_attr “mode” “DF”))) “la464_falu1 | la464_falu2”)

;; Force single-dispatch for unknown or multi. (define_insn_reservation “la464_unknown” 1 (and (match_test “TARGET_TUNE_LA464”) (eq_attr “type” “unknown,multi,atomic,syncloop”)) "la464_alu1 + la464_alu2 + la464_falu1

  • la464_falu2 + la464_mem1 + la464_mem2")

;; End of DFA-based pipeline description for la464