<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<!-- Copyright (C) 1988-2018 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 6.4, http://www.gnu.org/software/texinfo/ -->
<head>
<title>Alpha Built-in Functions (Using the GNU Compiler Collection (GCC))</title>
<meta name="description" content="Alpha Built-in Functions (Using the GNU Compiler Collection (GCC))">
<meta name="keywords" content="Alpha Built-in Functions (Using the GNU Compiler Collection (GCC))">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<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="Target-Builtins.html#Target-Builtins" rel="up" title="Target Builtins">
<link href="Altera-Nios-II-Built_002din-Functions.html#Altera-Nios-II-Built_002din-Functions" rel="next" title="Altera Nios II Built-in Functions">
<link href="AArch64-Built_002din-Functions.html#AArch64-Built_002din-Functions" rel="prev" title="AArch64 Built-in Functions">
<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="Alpha-Built_002din-Functions"></a>
<div class="header">
<p>
Next: <a href="Altera-Nios-II-Built_002din-Functions.html#Altera-Nios-II-Built_002din-Functions" accesskey="n" rel="next">Altera Nios II Built-in Functions</a>, Previous: <a href="AArch64-Built_002din-Functions.html#AArch64-Built_002din-Functions" accesskey="p" rel="prev">AArch64 Built-in Functions</a>, Up: <a href="Target-Builtins.html#Target-Builtins" accesskey="u" rel="up">Target Builtins</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>
</div>
<hr>
<a name="Alpha-Built_002din-Functions-1"></a>
<h4 class="subsection">6.59.2 Alpha Built-in Functions</h4>
<p>These built-in functions are available for the Alpha family of
processors, depending on the command-line switches used.
</p>
<p>The following built-in functions are always available. They
all generate the machine instruction that is part of the name.
</p>
<div class="smallexample">
<pre class="smallexample">long __builtin_alpha_implver (void)
long __builtin_alpha_rpcc (void)
long __builtin_alpha_amask (long)
long __builtin_alpha_cmpbge (long, long)
long __builtin_alpha_extbl (long, long)
long __builtin_alpha_extwl (long, long)
long __builtin_alpha_extll (long, long)
long __builtin_alpha_extql (long, long)
long __builtin_alpha_extwh (long, long)
long __builtin_alpha_extlh (long, long)
long __builtin_alpha_extqh (long, long)
long __builtin_alpha_insbl (long, long)
long __builtin_alpha_inswl (long, long)
long __builtin_alpha_insll (long, long)
long __builtin_alpha_insql (long, long)
long __builtin_alpha_inswh (long, long)
long __builtin_alpha_inslh (long, long)
long __builtin_alpha_insqh (long, long)
long __builtin_alpha_mskbl (long, long)
long __builtin_alpha_mskwl (long, long)
long __builtin_alpha_mskll (long, long)
long __builtin_alpha_mskql (long, long)
long __builtin_alpha_mskwh (long, long)
long __builtin_alpha_msklh (long, long)
long __builtin_alpha_mskqh (long, long)
long __builtin_alpha_umulh (long, long)
long __builtin_alpha_zap (long, long)
long __builtin_alpha_zapnot (long, long)
</pre></div>
<p>The following built-in functions are always with <samp>-mmax</samp>
or <samp>-mcpu=<var>cpu</var></samp> where <var>cpu</var> is <code>pca56</code> or
later. They all generate the machine instruction that is part
of the name.
</p>
<div class="smallexample">
<pre class="smallexample">long __builtin_alpha_pklb (long)
long __builtin_alpha_pkwb (long)
long __builtin_alpha_unpkbl (long)
long __builtin_alpha_unpkbw (long)
long __builtin_alpha_minub8 (long, long)
long __builtin_alpha_minsb8 (long, long)
long __builtin_alpha_minuw4 (long, long)
long __builtin_alpha_minsw4 (long, long)
long __builtin_alpha_maxub8 (long, long)
long __builtin_alpha_maxsb8 (long, long)
long __builtin_alpha_maxuw4 (long, long)
long __builtin_alpha_maxsw4 (long, long)
long __builtin_alpha_perr (long, long)
</pre></div>
<p>The following built-in functions are always with <samp>-mcix</samp>
or <samp>-mcpu=<var>cpu</var></samp> where <var>cpu</var> is <code>ev67</code> or
later. They all generate the machine instruction that is part
of the name.
</p>
<div class="smallexample">
<pre class="smallexample">long __builtin_alpha_cttz (long)
long __builtin_alpha_ctlz (long)
long __builtin_alpha_ctpop (long)
</pre></div>
<p>The following built-in functions are available on systems that use the OSF/1
PALcode. Normally they invoke the <code>rduniq</code> and <code>wruniq</code>
PAL calls, but when invoked with <samp>-mtls-kernel</samp>, they invoke
<code>rdval</code> and <code>wrval</code>.
</p>
<div class="smallexample">
<pre class="smallexample">void *__builtin_thread_pointer (void)
void __builtin_set_thread_pointer (void *)
</pre></div>
<hr>
<div class="header">
<p>
Next: <a href="Altera-Nios-II-Built_002din-Functions.html#Altera-Nios-II-Built_002din-Functions" accesskey="n" rel="next">Altera Nios II Built-in Functions</a>, Previous: <a href="AArch64-Built_002din-Functions.html#AArch64-Built_002din-Functions" accesskey="p" rel="prev">AArch64 Built-in Functions</a>, Up: <a href="Target-Builtins.html#Target-Builtins" accesskey="u" rel="up">Target Builtins</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>
</div>
</body>
</html>