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<div class="subsection-level-extent" id="Alpha-Built-in-Functions"> <div class="nav-panel"> <p> Next: <a href="altera-nios-ii-built-in-functions" accesskey="n" rel="next">Altera Nios II Built-in Functions</a>, Previous: <a href="aarch64-built-in-functions" accesskey="p" rel="prev">AArch64 Built-in Functions</a>, Up: <a href="target-builtins" accesskey="u" rel="up">Built-in Functions Specific to Particular Target Machines</a> [<a href="index#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="indices" title="Index" rel="index">Index</a>]</p> </div> <h1 class="subsection" id="Alpha-Built-in-Functions-1"><span>6.60.2 Alpha Built-in Functions<a class="copiable-link" href="#Alpha-Built-in-Functions-1"> ¶</a></span></h1> <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="example smallexample"> <pre class="example-preformatted" data-language="cpp">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 class="option">-mmax</samp> or <samp class="option">-mcpu=<var class="var">cpu</var></samp> where <var class="var">cpu</var> is <code class="code">pca56</code> or later. They all generate the machine instruction that is part of the name. </p> <div class="example smallexample"> <pre class="example-preformatted" data-language="cpp">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 class="option">-mcix</samp> or <samp class="option">-mcpu=<var class="var">cpu</var></samp> where <var class="var">cpu</var> is <code class="code">ev67</code> or later. They all generate the machine instruction that is part of the name. </p> <div class="example smallexample"> <pre class="example-preformatted" data-language="cpp">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 class="code">rduniq</code> and <code class="code">wruniq</code> PAL calls, but when invoked with <samp class="option">-mtls-kernel</samp>, they invoke <code class="code">rdval</code> and <code class="code">wrval</code>. </p> <div class="example smallexample"> <pre class="example-preformatted" data-language="cpp">void *__builtin_thread_pointer (void);
void __builtin_set_thread_pointer (void *);</pre>
</div> </div> <div class="nav-panel"> <p> Next: <a href="altera-nios-ii-built-in-functions">Altera Nios II Built-in Functions</a>, Previous: <a href="aarch64-built-in-functions">AArch64 Built-in Functions</a>, Up: <a href="target-builtins">Built-in Functions Specific to Particular Target Machines</a> [<a href="index#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="indices" title="Index" rel="index">Index</a>]</p> </div><div class="_attribution">
<p class="_attribution-p">
© Free Software Foundation<br>Licensed under the GNU Free Documentation License, Version 1.3.<br>
<a href="https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/Alpha-Built-in-Functions.html" class="_attribution-link">https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/Alpha-Built-in-Functions.html</a>
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