visus
/
toolchain-gcc-arm-embedded

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<!-- Copyright (C) 1988-2020 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being "Funding Free Software", the Front-Cover
Texts being (a) (see below), and with the Back-Cover Texts being (b)
(see below).  A copy of the license is included in the section entitled
"GNU Free Documentation License".

(a) The FSF's Front-Cover Text is:

A GNU Manual

(b) The FSF's Back-Cover Text is:

You have freedom to copy and modify this GNU Manual, like GNU
     software.  Copies published by the Free Software Foundation raise
     funds for GNU development. -->
<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>GIMPLE_COND (GNU Compiler Collection (GCC) Internals)</title>

<meta name="description" content="GIMPLE_COND (GNU Compiler Collection (GCC) Internals)">
<meta name="keywords" content="GIMPLE_COND (GNU Compiler Collection (GCC) Internals)">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
<link href="index.html#Top" rel="start" title="Top">
<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
<link href="Tuple-specific-accessors.html#Tuple-specific-accessors" rel="up" title="Tuple specific accessors">
<link href="GIMPLE_005fDEBUG.html#GIMPLE_005fDEBUG" rel="next" title="GIMPLE_DEBUG">
<link href="GIMPLE_005fCATCH.html#GIMPLE_005fCATCH" rel="prev" title="GIMPLE_CATCH">
<style type="text/css">
<!--
a.summary-letter {text-decoration: none}
blockquote.indentedblock {margin-right: 0em}
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
blockquote.smallquotation {font-size: smaller}
div.display {margin-left: 3.2em}
div.example {margin-left: 3.2em}
div.lisp {margin-left: 3.2em}
div.smalldisplay {margin-left: 3.2em}
div.smallexample {margin-left: 3.2em}
div.smalllisp {margin-left: 3.2em}
kbd {font-style: oblique}
pre.display {font-family: inherit}
pre.format {font-family: inherit}
pre.menu-comment {font-family: serif}
pre.menu-preformatted {font-family: serif}
pre.smalldisplay {font-family: inherit; font-size: smaller}
pre.smallexample {font-size: smaller}
pre.smallformat {font-family: inherit; font-size: smaller}
pre.smalllisp {font-size: smaller}
span.nolinebreak {white-space: nowrap}
span.roman {font-family: initial; font-weight: normal}
span.sansserif {font-family: sans-serif; font-weight: normal}
ul.no-bullet {list-style: none}
-->
</style>


</head>

<body lang="en">
<a name="GIMPLE_005fCOND"></a>
<div class="header">
<p>
Next: <a href="GIMPLE_005fDEBUG.html#GIMPLE_005fDEBUG" accesskey="n" rel="next"><code>GIMPLE_DEBUG</code></a>, Previous: <a href="GIMPLE_005fCATCH.html#GIMPLE_005fCATCH" accesskey="p" rel="prev"><code>GIMPLE_CATCH</code></a>, Up: <a href="Tuple-specific-accessors.html#Tuple-specific-accessors" accesskey="u" rel="up">Tuple specific accessors</a> &nbsp; [<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>
</div>
<hr>
<a name="GIMPLE_005fCOND-1"></a>
<h4 class="subsection">12.8.6 <code>GIMPLE_COND</code></h4>
<a name="index-GIMPLE_005fCOND"></a>

<dl>
<dt><a name="index-_002agimple_005fbuild_005fcond"></a>GIMPLE function: <em>gcond</em> <strong>*gimple_build_cond</strong> <em>( enum tree_code pred_code, tree lhs, tree rhs, tree t_label, tree f_label)</em></dt>
<dd><p>Build a <code>GIMPLE_COND</code> statement.  <code>A</code> <code>GIMPLE_COND</code> statement compares
<code>LHS</code> and <code>RHS</code> and if the condition in <code>PRED_CODE</code> is true, jump to
the label in <code>t_label</code>, otherwise jump to the label in <code>f_label</code>.
<code>PRED_CODE</code> are relational operator tree codes like <code>EQ_EXPR</code>,
<code>LT_EXPR</code>, <code>LE_EXPR</code>, <code>NE_EXPR</code>, etc.
</p></dd></dl>


<dl>
<dt><a name="index-_002agimple_005fbuild_005fcond_005ffrom_005ftree"></a>GIMPLE function: <em>gcond</em> <strong>*gimple_build_cond_from_tree</strong> <em>(tree cond, tree t_label, tree f_label)</em></dt>
<dd><p>Build a <code>GIMPLE_COND</code> statement from the conditional expression
tree <code>COND</code>.  <code>T_LABEL</code> and <code>F_LABEL</code> are as in <code>gimple_build_cond</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005fcode"></a>GIMPLE function: <em>enum tree_code</em> <strong>gimple_cond_code</strong> <em>(gimple g)</em></dt>
<dd><p>Return the code of the predicate computed by conditional
statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005fset_005fcode"></a>GIMPLE function: <em>void</em> <strong>gimple_cond_set_code</strong> <em>(gcond *g, enum tree_code code)</em></dt>
<dd><p>Set <code>CODE</code> to be the predicate code for the conditional statement
<code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005flhs"></a>GIMPLE function: <em>tree</em> <strong>gimple_cond_lhs</strong> <em>(gimple g)</em></dt>
<dd><p>Return the <code>LHS</code> of the predicate computed by conditional statement
<code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005fset_005flhs"></a>GIMPLE function: <em>void</em> <strong>gimple_cond_set_lhs</strong> <em>(gcond *g, tree lhs)</em></dt>
<dd><p>Set <code>LHS</code> to be the <code>LHS</code> operand of the predicate computed by
conditional statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005frhs"></a>GIMPLE function: <em>tree</em> <strong>gimple_cond_rhs</strong> <em>(gimple g)</em></dt>
<dd><p>Return the <code>RHS</code> operand of the predicate computed by conditional
<code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005fset_005frhs"></a>GIMPLE function: <em>void</em> <strong>gimple_cond_set_rhs</strong> <em>(gcond *g, tree rhs)</em></dt>
<dd><p>Set <code>RHS</code> to be the <code>RHS</code> operand of the predicate computed by
conditional statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005ftrue_005flabel"></a>GIMPLE function: <em>tree</em> <strong>gimple_cond_true_label</strong> <em>(const gcond *g)</em></dt>
<dd><p>Return the label used by conditional statement <code>G</code> when its
predicate evaluates to true.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005fset_005ftrue_005flabel"></a>GIMPLE function: <em>void</em> <strong>gimple_cond_set_true_label</strong> <em>(gcond *g, tree label)</em></dt>
<dd><p>Set <code>LABEL</code> to be the label used by conditional statement <code>G</code> when
its predicate evaluates to true.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005fset_005ffalse_005flabel"></a>GIMPLE function: <em>void</em> <strong>gimple_cond_set_false_label</strong> <em>(gcond *g, tree label)</em></dt>
<dd><p>Set <code>LABEL</code> to be the label used by conditional statement <code>G</code> when
its predicate evaluates to false.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005ffalse_005flabel"></a>GIMPLE function: <em>tree</em> <strong>gimple_cond_false_label</strong> <em>(const gcond *g)</em></dt>
<dd><p>Return the label used by conditional statement <code>G</code> when its
predicate evaluates to false.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005fmake_005ffalse"></a>GIMPLE function: <em>void</em> <strong>gimple_cond_make_false</strong> <em>(gcond *g)</em></dt>
<dd><p>Set the conditional <code>COND_STMT</code> to be of the form &rsquo;if (1 == 0)&rsquo;.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcond_005fmake_005ftrue"></a>GIMPLE function: <em>void</em> <strong>gimple_cond_make_true</strong> <em>(gcond *g)</em></dt>
<dd><p>Set the conditional <code>COND_STMT</code> to be of the form &rsquo;if (1 == 1)&rsquo;.
</p></dd></dl>

<hr>
<div class="header">
<p>
Next: <a href="GIMPLE_005fDEBUG.html#GIMPLE_005fDEBUG" accesskey="n" rel="next"><code>GIMPLE_DEBUG</code></a>, Previous: <a href="GIMPLE_005fCATCH.html#GIMPLE_005fCATCH" accesskey="p" rel="prev"><code>GIMPLE_CATCH</code></a>, Up: <a href="Tuple-specific-accessors.html#Tuple-specific-accessors" accesskey="u" rel="up">Tuple specific accessors</a> &nbsp; [<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>
</div>


</body>
</html>