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annotate gcc/config/csky/csky_pipeline_ck801.md @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 84e7813d76e9
children
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1 ;; Scheduler information for C-SKY CK801 processors.
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2 ;; Copyright (C) 2018-2020 Free Software Foundation, Inc.
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3 ;; Contributed by C-SKY Microsystems and Mentor Graphics.
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4 ;;
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5 ;; This file is part of GCC.
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6 ;;
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7 ;; GCC is free software; you can redistribute it and/or modify it
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8 ;; under the terms of the GNU General Public License as published by
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9 ;; the Free Software Foundation; either version 3, or (at your option)
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10 ;; any later version.
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11 ;;
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12 ;; GCC is distributed in the hope that it will be useful, but
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13 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 ;; General Public License for more details.
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16 ;;
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17 ;; You should have received a copy of the GNU General Public License
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18 ;; along with GCC; see the file COPYING3. If not see
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19 ;; <http://www.gnu.org/licenses/>. */
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20
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21 ;; This is just a placeholder for a more accurate pipeline
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22 ;; description for CK801.
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23
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24 (define_automaton "ck801")
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25
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26 (define_cpu_unit "ck801_ex1" "ck801")
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27 (define_cpu_unit "ck801_exit" "ck801")
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28
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29 (define_insn_reservation "ck801_generic" 1
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30 (and (match_test "CSKY_TARGET_ARCH (CK801)")
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31 (eq_attr "type" "alu,cmp,branch,cbranch,addsub,alu_ix,branch_jmp,call_jsr,call"))
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32 "ck801_ex1+ck801_exit")
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33
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34 (define_insn_reservation "ck801_load" 1
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35 (and (match_test "CSKY_TARGET_ARCH (CK801)")
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36 (and (eq_attr "type" "load")
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37 (match_test "!csky_minipool_load_p (insn)")))
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38 "ck801_ex1+ck801_exit")
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39
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40 (define_insn_reservation "ck801_pool" 1
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41 (and (match_test "CSKY_TARGET_ARCH (CK801)")
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42 (and (eq_attr "type" "load")
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43 (match_test "csky_minipool_load_p (insn)")))
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44 "ck801_ex1+ck801_exit")
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45
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46 (define_insn_reservation "ck801_store" 1
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47 (and (match_test "CSKY_TARGET_ARCH (CK801)")
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48 (eq_attr "type" "store"))
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49 "ck801_ex1+ck801_exit")
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50
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51 ;; Switching between constant pool loads and loads/stores in the data section
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52 ;; carries an extra penalty.
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53 (define_bypass 2 "ck801_load,ck801_store" "ck801_pool")
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54 (define_bypass 2 "ck801_pool" "ck801_load,ck801_store")