Mercurial > hg > xemacs-beta
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;