;; Instruction scheduling information for C-SKY CK802 processors. ;; Copyright (C) 2018-2021 Free Software Foundation, Inc. ;; Contributed by C-SKY Microsystems and Mentor Graphics. ;; ;; 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 “csky_ck802”)

(define_cpu_unit “csky_ck802_ex” “csky_ck802”) (define_cpu_unit “csky_ck802_wb” “csky_ck802”)

(define_insn_reservation “ck802_alu” 2 (and (match_test “CSKY_TARGET_ARCH (CK802)”) (eq_attr “type” “alu”)) “csky_ck802_ex, csky_ck802_wb”)

(define_insn_reservation “ck802_branch” 2 (and (match_test “CSKY_TARGET_ARCH (CK802)”) (eq_attr “type” “branch, branch_jmp”)) “csky_ck802_ex, csky_ck802_wb”)

(define_insn_reservation “ck802_cmp” 2 (and (match_test “CSKY_TARGET_ARCH (CK802)”) (eq_attr “type” “cmp”)) “csky_ck802_ex, csky_ck802_wb”)

(define_insn_reservation “ck802_cbranch” 2 (and (match_test “CSKY_TARGET_ARCH (CK802)”) (eq_attr “type” “cbranch”)) “csky_ck802_ex, csky_ck802_wb”)

(define_insn_reservation “ck802_call” 2 (and (match_test “CSKY_TARGET_ARCH (CK802)”) (eq_attr “type” “call, call_jsr”)) “csky_ck802_ex, csky_ck802_wb”)

(define_insn_reservation “ck802_load” 2 (and (match_test “CSKY_TARGET_ARCH (CK802)”) (and (eq_attr “type” “load”) (match_test “!csky_minipool_load_p (insn)”))) “csky_ck802_ex, csky_ck802_wb”)

(define_insn_reservation “ck802_pool” 2 (and (match_test “CSKY_TARGET_ARCH (CK802)”) (and (eq_attr “type” “load”) (match_test “csky_minipool_load_p (insn)”))) “csky_ck802_ex, csky_ck802_wb”)

(define_insn_reservation “ck802_store” 2 (and (match_test “CSKY_TARGET_ARCH (CK802)”) (eq_attr “type” “store”)) “csky_ck802_ex, csky_ck802_wb”)

;; Switching between constant pool loads and loads/stores in the data section ;; carries an extra penalty. (define_bypass 3 “ck802_load,ck802_store” “ck802_pool”) (define_bypass 3 “ck802_pool” “ck802_load,ck802_store”)

(define_bypass 1 “ck802_alu,ck802_branch,ck802_cmp,ck802_cbranch,ck802_call,
ck802_load,ck802_pool,ck802_store” “ck802_alu”)

(define_bypass 1 “ck802_alu,ck802_branch,ck802_cmp,ck802_cbranch,ck802_call,
ck802_load,ck802_pool,ck802_store” “ck802_branch”)

(define_bypass 2 “ck802_cmp” “ck802_cbranch”)