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100 lines
4.5 KiB
HTML
100 lines
4.5 KiB
HTML
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<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Machine-Desc.html#Machine-Desc" rel="up" title="Machine Desc">
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<link href="Mode-Iterators.html#Mode-Iterators" rel="next" title="Mode Iterators">
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<a name="Iterators"></a>
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<p>
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Previous: <a href="Constant-Definitions.html#Constant-Definitions" accesskey="p" rel="prev">Constant Definitions</a>, Up: <a href="Machine-Desc.html#Machine-Desc" accesskey="u" rel="up">Machine Desc</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Iterators-1"></a>
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<h3 class="section">17.23 Iterators</h3>
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<a name="index-iterators-in-_002emd-files"></a>
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<p>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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</p>
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<table class="menu" border="0" cellspacing="0">
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<tr><td align="left" valign="top">• <a href="Mode-Iterators.html#Mode-Iterators" accesskey="1">Mode Iterators</a>:</td><td> </td><td align="left" valign="top">Generating variations of patterns for different modes.
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Code-Iterators.html#Code-Iterators" accesskey="2">Code Iterators</a>:</td><td> </td><td align="left" valign="top">Doing the same for codes.
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Int-Iterators.html#Int-Iterators" accesskey="3">Int Iterators</a>:</td><td> </td><td align="left" valign="top">Doing the same for integers.
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Subst-Iterators.html#Subst-Iterators" accesskey="4">Subst Iterators</a>:</td><td> </td><td align="left" valign="top">Generating variations of patterns for define_subst.
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