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138 lines
6.4 KiB
HTML
138 lines
6.4 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!-- Copyright (C) 1988-2018 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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Invariant Sections being "Funding Free Software", the Front-Cover
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Texts being (a) (see below), and with the Back-Cover Texts being (b)
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(see below). A copy of the license is included in the section entitled
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"GNU Free Documentation License".
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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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You have freedom to copy and modify this GNU Manual, like GNU
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>GIMPLE_SWITCH (GNU Compiler Collection (GCC) Internals)</title>
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<meta name="description" content="GIMPLE_SWITCH (GNU Compiler Collection (GCC) Internals)">
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<meta name="keywords" content="GIMPLE_SWITCH (GNU Compiler Collection (GCC) Internals)">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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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="Tuple-specific-accessors.html#Tuple-specific-accessors" rel="up" title="Tuple specific accessors">
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<link href="GIMPLE_005fTRY.html#GIMPLE_005fTRY" rel="next" title="GIMPLE_TRY">
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<link href="GIMPLE_005fRETURN.html#GIMPLE_005fRETURN" rel="prev" title="GIMPLE_RETURN">
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</head>
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<body lang="en">
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<a name="GIMPLE_005fSWITCH"></a>
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<div class="header">
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<p>
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Next: <a href="GIMPLE_005fTRY.html#GIMPLE_005fTRY" accesskey="n" rel="next"><code>GIMPLE_TRY</code></a>, Previous: <a href="GIMPLE_005fRETURN.html#GIMPLE_005fRETURN" accesskey="p" rel="prev"><code>GIMPLE_RETURN</code></a>, Up: <a href="Tuple-specific-accessors.html#Tuple-specific-accessors" accesskey="u" rel="up">Tuple specific accessors</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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</div>
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<hr>
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<a name="GIMPLE_005fSWITCH-1"></a>
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<h4 class="subsection">12.8.27 <code>GIMPLE_SWITCH</code></h4>
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<a name="index-GIMPLE_005fSWITCH"></a>
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<dl>
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<dt><a name="index-_002agimple_005fbuild_005fswitch"></a>GIMPLE function: <em>gswitch</em> <strong>*gimple_build_switch</strong> <em>(tree index, tree default_label, <code>vec</code><tree> *args)</em></dt>
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<dd><p>Build a <code>GIMPLE_SWITCH</code> statement. <code>INDEX</code> is the index variable
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to switch on, and <code>DEFAULT_LABEL</code> represents the default label.
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<code>ARGS</code> is a vector of <code>CASE_LABEL_EXPR</code> trees that contain the
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non-default case labels. Each label is a tree of code <code>CASE_LABEL_EXPR</code>.
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</p></dd></dl>
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<dl>
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<dt><a name="index-gimple_005fswitch_005fnum_005flabels"></a>GIMPLE function: <em>unsigned</em> <strong>gimple_switch_num_labels</strong> <em>( const gswitch *g)</em></dt>
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<dd><p>Return the number of labels associated with the switch statement
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<code>G</code>.
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</p></dd></dl>
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<dl>
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<dt><a name="index-gimple_005fswitch_005fset_005fnum_005flabels"></a>GIMPLE function: <em>void</em> <strong>gimple_switch_set_num_labels</strong> <em>(gswitch *g, unsigned nlabels)</em></dt>
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<dd><p>Set <code>NLABELS</code> to be the number of labels for the switch statement
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<code>G</code>.
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</p></dd></dl>
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<dl>
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<dt><a name="index-gimple_005fswitch_005findex"></a>GIMPLE function: <em>tree</em> <strong>gimple_switch_index</strong> <em>(const gswitch *g)</em></dt>
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<dd><p>Return the index variable used by the switch statement <code>G</code>.
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</p></dd></dl>
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<dl>
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<dt><a name="index-gimple_005fswitch_005fset_005findex"></a>GIMPLE function: <em>void</em> <strong>gimple_switch_set_index</strong> <em>(gswitch *g, tree index)</em></dt>
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<dd><p>Set <code>INDEX</code> to be the index variable for switch statement <code>G</code>.
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</p></dd></dl>
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<dl>
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<dt><a name="index-gimple_005fswitch_005flabel"></a>GIMPLE function: <em>tree</em> <strong>gimple_switch_label</strong> <em>(const gswitch *g, unsigned index)</em></dt>
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<dd><p>Return the label numbered <code>INDEX</code>. The default label is 0, followed
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by any labels in a switch statement.
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</p></dd></dl>
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<dl>
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<dt><a name="index-gimple_005fswitch_005fset_005flabel"></a>GIMPLE function: <em>void</em> <strong>gimple_switch_set_label</strong> <em>(gswitch *g, unsigned index, tree label)</em></dt>
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<dd><p>Set the label number <code>INDEX</code> to <code>LABEL</code>. 0 is always the default
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label.
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</p></dd></dl>
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<dl>
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<dt><a name="index-gimple_005fswitch_005fdefault_005flabel"></a>GIMPLE function: <em>tree</em> <strong>gimple_switch_default_label</strong> <em>( const gswitch *g)</em></dt>
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<dd><p>Return the default label for a switch statement.
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</p></dd></dl>
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<dl>
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<dt><a name="index-gimple_005fswitch_005fset_005fdefault_005flabel"></a>GIMPLE function: <em>void</em> <strong>gimple_switch_set_default_label</strong> <em>(gswitch *g, tree label)</em></dt>
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<dd><p>Set the default label for a switch statement.
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</p></dd></dl>
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</body>
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</html>
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