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annotate gcc/config/nios2/sync.md @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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children 84e7813d76e9
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111
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1 ;; Machine Description for Altera Nios II synchronization primitives.
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2 ;; Copyright (C) 2014-2017 Free Software Foundation, Inc.
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3 ;; Contributed by Mentor Graphics, Inc.
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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
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8 ;; it 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,
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13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 ;; GNU 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 (define_int_iterator UNSPECV_LOAD_EXCLUSIVE [UNSPECV_LDEX UNSPECV_LDSEX])
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22 (define_int_attr load_exclusive [(UNSPECV_LDEX "ldex")
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23 (UNSPECV_LDSEX "ldsex")])
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24 (define_insn "<load_exclusive>"
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25 [(set (match_operand:SI 0 "register_operand" "=r")
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26 (unspec_volatile:SI
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27 [(match_operand:SI 1 "ldstex_memory_operand" "v")]
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28 UNSPECV_LOAD_EXCLUSIVE))]
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29 "TARGET_ARCH_R2"
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30 "<load_exclusive>\\t%0, %A1"
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31 [(set_attr "type" "ld")])
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32
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33 (define_int_iterator UNSPECV_STORE_EXCLUSIVE [UNSPECV_STEX UNSPECV_STSEX])
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34 (define_int_attr store_exclusive [(UNSPECV_STEX "stex")
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35 (UNSPECV_STSEX "stsex")])
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36 (define_insn "<store_exclusive>"
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37 [(set (match_operand:SI 2 "register_operand" "=r")
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38 (unspec_volatile:SI [(const_int 0)] UNSPECV_STORE_EXCLUSIVE))
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39 (set (match_operand:SI 0 "ldstex_memory_operand" "=v")
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40 (unspec_volatile:SI
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41 [(match_operand:SI 1 "reg_or_0_operand" "rM")]
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42 UNSPECV_STORE_EXCLUSIVE))]
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43 "TARGET_ARCH_R2"
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44 "<store_exclusive>\\t%2, %z1, %A0"
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45 [(set_attr "type" "st")])