view src/pre-crt0.c @ 5502:5b08be74bb53

Be better about recognising side-effect-free forms, byte-optimize.el. 2011-05-07 Aidan Kehoe <kehoea@parhasard.net> * byte-optimize.el: * byte-optimize.el (byte-optimize-form-code-walker): Call #'byte-optimize-side-effect-free-p on the form, rather than just checking the plist of the form's car. * byte-optimize.el (side-effect-free-fns): Move the CL functions into their alphabetical place in the list. * byte-optimize.el (function): * byte-optimize.el (byte-optimize-side-effect-free-p): New. Function returning non-nil if a funcall has no side-effects, which handles things like (remove* item list :key 'car) and (remove-if-not #'integerp list).
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 07 May 2011 11:45:20 +0100
parents 308d34e9f07d
children
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/* This file is part of XEmacs.

XEmacs 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 of the License, or (at your
option) any later version.

XEmacs 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 XEmacs.  If not, see <http://www.gnu.org/licenses/>. */

/* Synched up with: FSF 19.30. */

/* This file is loaded before crt0.o on machines where we do not
   remap part of the data space into text space in unexec.
   On these machines, there is no problem with standard crt0.o's
   that make environ an initialized variable.  However, we do
   need to make sure the label data_start exists anyway.  */

/* Create a label to appear at the beginning of data space.  */

int data_start = 0;