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1 #! /bin/sh
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2 ###########################################################################
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3 #
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4 # Name
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5 # coopt.sh -- an inefficient optimizer that can produce very efficient
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6 # code
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7 #
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8 # DESCRIPTION
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9 # This optimizer is only run on noninteractive code that takes no
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10 # output. (It's designed to run on executables produced by INTERCAL
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11 # code, but will run on other executables that support the +mystery
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12 # option). It optimizes the file by replacing it by one that simply
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13 # produces the required output! Therefore, it creates fast but
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14 # inefficient code. If the file to be optimized hits an error or
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15 # is terminated by +mystery, then no changes are made.
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16 #
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17 # LICENSE TERMS
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18 # Copyright (C) 2006 Alex Smith
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19 #
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20 # This program is free software; you can redistribute it and/or modify
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21 # it under the terms of the GNU General Public License as published by
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22 # the Free Software Foundation; either version 2 of the License, or
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23 # (at your option) any later version.
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24 #
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25 # This program is distributed in the hope that it will be useful,
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26 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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27 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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28 # GNU General Public License for more details.
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29 #
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30 # You should have received a copy of the GNU General Public License
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31 # along with this program; if not, write to the Free Software
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32 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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33 #
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34 ###########################################################################
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35
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36 rm icktemp.out >/dev/null 2>/dev/null
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37 if $1 +mystery >icktemp.out 2>/dev/null ; then : ; else
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38 rm icktemp.out ; exit 0 ; fi
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39 if grep 'ickoutTERM???!' icktemp.out ; then rm icktemp.out ; exit 0 ; fi
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40 echo 'ickoutTERM???!' >> icktemp.out
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41 rm $1
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42 echo "#! /bin/sh
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43 cat <<'ickoutTERM???!'" | cat - icktemp.out > $1
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44 chmod +x $1
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45 rm icktemp.out
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46 exit 0
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