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69 lines
3.0 KiB
HTML
69 lines
3.0 KiB
HTML
4 years ago
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<title>Iterators - GNU Compiler Collection (GCC) Internals</title>
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<meta name="description" content="GNU Compiler Collection (GCC) Internals">
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<link rel="up" href="Machine-Desc.html#Machine-Desc" title="Machine Desc">
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<link rel="prev" href="Constant-Definitions.html#Constant-Definitions" title="Constant Definitions">
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Copyright (C) 1988-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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(see below). A copy of the license is included in the section entitled
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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</head>
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<body>
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<div class="node">
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<a name="Iterators"></a>
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<p>
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Previous: <a rel="previous" accesskey="p" href="Constant-Definitions.html#Constant-Definitions">Constant Definitions</a>,
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Up: <a rel="up" accesskey="u" href="Machine-Desc.html#Machine-Desc">Machine Desc</a>
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<hr>
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</div>
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<h3 class="section">16.23 Iterators</h3>
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<p><a name="index-iterators-in-_0040file_007b_002emd_007d-files-3836"></a>
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Ports often need to define similar patterns for more than one machine
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mode or for more than one rtx code. GCC provides some simple iterator
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facilities to make this process easier.
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<ul class="menu">
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<li><a accesskey="1" href="Mode-Iterators.html#Mode-Iterators">Mode Iterators</a>: Generating variations of patterns for different modes.
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<li><a accesskey="2" href="Code-Iterators.html#Code-Iterators">Code Iterators</a>: Doing the same for codes.
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<li><a accesskey="3" href="Int-Iterators.html#Int-Iterators">Int Iterators</a>: Doing the same for integers.
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<li><a accesskey="4" href="Subst-Iterators.html#Subst-Iterators">Subst Iterators</a>: Generating variations of patterns for define_subst.
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</ul>
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</body></html>
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