devdocs/gcc~13/risc-v-built-in-functions.html


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<div class="subsection-level-extent" id="RISC-V-Built-in-Functions"> <div class="nav-panel"> <p> Next: <a href="risc-v-vector-intrinsics" accesskey="n" rel="next">RISC-V Vector Intrinsics</a>, Previous: <a href="pru-built-in-functions" accesskey="p" rel="prev">PRU 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="RISC-V-Built-in-Functions-1"><span>6.60.28 RISC-V Built-in Functions<a class="copiable-link" href="#RISC-V-Built-in-Functions-1"> ¶</a></span></h1> <p>These built-in functions are available for the RISC-V family of processors. </p> <dl class="first-deftypefn"> <dt class="deftypefn" id="index-_005f_005fbuiltin_005fthread_005fpointer">
<span class="category-def">Built-in Function: </span><span><code class="def-type">void *</code> <strong class="def-name">__builtin_thread_pointer</strong> <code class="def-code-arguments">(void)</code><a class="copiable-link" href="#index-_005f_005fbuiltin_005fthread_005fpointer"> ¶</a></span>
</dt> <dd><p>Returns the value that is currently set in the ‘<samp class="samp">tp</samp>’ register. </p></dd>
</dl> <dl class="first-deftypefn"> <dt class="deftypefn" id="index-_005f_005fbuiltin_005friscv_005fpause">
<span class="category-def">Built-in Function: </span><span><code class="def-type">void</code> <strong class="def-name">__builtin_riscv_pause</strong> <code class="def-code-arguments">(void)</code><a class="copiable-link" href="#index-_005f_005fbuiltin_005friscv_005fpause"> ¶</a></span>
</dt> <dd><p>Generates the <code class="code">pause</code> (hint) machine instruction. This implies the Xgnuzihintpausestate extension, which redefines the <code class="code">pause</code> instruction to change architectural state. </p></dd>
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