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annotate gcc/config/rs6000/option-defaults.h @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
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1 /* Definitions of default options for config/rs6000 configurations.
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2 Copyright (C) 1992-2018 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published
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8 by the Free Software Foundation; either version 3, or (at your
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9 option) any later version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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14 License for more details.
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15
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16 Under Section 7 of GPL version 3, you are granted additional
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17 permissions described in the GCC Runtime Library Exception, version
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18 3.1, as published by the Free Software Foundation.
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19
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20 You should have received a copy of the GNU General Public License and
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21 a copy of the GCC Runtime Library Exception along with this program;
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22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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23 <http://www.gnu.org/licenses/>. */
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24
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25 /* This header needs to be included after any other headers affecting
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26 TARGET_DEFAULT. */
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27
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28 #if TARGET_AIX_OS
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29 #define OPT_64 "maix64"
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30 #define OPT_32 "maix32"
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31 #else
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32 #define OPT_64 "m64"
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33 #define OPT_32 "m32"
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34 #endif
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35
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36 #ifndef OPTION_MASK_64BIT
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37 #define OPTION_MASK_64BIT 0
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38 #define MASK_64BIT 0
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39 #endif
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40
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41 #if TARGET_DEFAULT & OPTION_MASK_64BIT
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42 #define OPT_ARCH64 "!" OPT_32
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43 #define OPT_ARCH32 OPT_32
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44 #else
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45 #define OPT_ARCH64 OPT_64
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46 #define OPT_ARCH32 "!" OPT_64
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47 #endif
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48
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49 /* Support for a compile-time default CPU, et cetera. The rules are:
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50 --with-cpu is ignored if -mcpu is specified; likewise --with-cpu-32
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51 and --with-cpu-64.
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52 --with-tune is ignored if -mtune or -mcpu is specified; likewise
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53 --with-tune-32 and --with-tune-64.
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54 --with-float is ignored if -mhard-float or -msoft-float are
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55 specified. */
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56 #define OPTION_DEFAULT_SPECS \
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57 {"abi", "%{!mabi=elfv*:-mabi=%(VALUE)}" }, \
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58 {"tune", "%{!mtune=*:%{!mcpu=*:-mtune=%(VALUE)}}" }, \
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59 {"tune_32", "%{" OPT_ARCH32 ":%{!mtune=*:%{!mcpu=*:-mtune=%(VALUE)}}}" }, \
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60 {"tune_64", "%{" OPT_ARCH64 ":%{!mtune=*:%{!mcpu=*:-mtune=%(VALUE)}}}" }, \
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61 {"cpu", "%{!mcpu=*:-mcpu=%(VALUE)}" }, \
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62 {"cpu_32", "%{" OPT_ARCH32 ":%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
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63 {"cpu_64", "%{" OPT_ARCH64 ":%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
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64 {"float", "%{!msoft-float:%{!mhard-float:-m%(VALUE)-float}}" }