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+<div class="subsection-level-extent" id="PowerPC-Matrix-Multiply-Assist-Built-in-Functions"> <div class="nav-panel"> <p> Next: <a href="pru-built-in-functions" accesskey="n" rel="next">PRU Built-in Functions</a>, Previous: <a href="powerpc-atomic-memory-operation-functions" accesskey="p" rel="prev">PowerPC Atomic Memory Operation 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="PowerPC-Matrix-Multiply-Assist-Built-in-Functions-1"><span>6.60.26 PowerPC Matrix-Multiply Assist Built-in Functions<a class="copiable-link" href="#PowerPC-Matrix-Multiply-Assist-Built-in-Functions-1"> ¶</a></span></h1> <p>ISA 3.1 of the PowerPC added new Matrix-Multiply Assist (MMA) instructions. GCC provides support for these instructions through the following built-in functions which are enabled with the <code class="code">-mmma</code> option. The vec_t type below is defined to be a normal vector unsigned char type. The uint2, uint4 and uint8 parameters are 2-bit, 4-bit and 8-bit unsigned integer constants respectively. The compiler will verify that they are constants and that their values are within range. </p> <p>The built-in functions supported are: </p> <div class="example smallexample"> <pre class="example-preformatted" data-language="cpp">void __builtin_mma_xvi4ger8 (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvi8ger4 (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvi16ger2 (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvi16ger2s (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf16ger2 (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvbf16ger2 (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf32ger (__vector_quad *, vec_t, vec_t);
+
+void __builtin_mma_xvi4ger8pp (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvi8ger4pp (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvi8ger4spp(__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvi16ger2pp (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvi16ger2spp (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf16ger2pp (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf16ger2pn (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf16ger2np (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf16ger2nn (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvbf16ger2pp (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvbf16ger2pn (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvbf16ger2np (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvbf16ger2nn (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf32gerpp (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf32gerpn (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf32gernp (__vector_quad *, vec_t, vec_t);
+void __builtin_mma_xvf32gernn (__vector_quad *, vec_t, vec_t);
+
+void __builtin_mma_pmxvi4ger8 (__vector_quad *, vec_t, vec_t, uint4, uint4, uint8);
+void __builtin_mma_pmxvi4ger8pp (__vector_quad *, vec_t, vec_t, uint4, uint4, uint8);
+
+void __builtin_mma_pmxvi8ger4 (__vector_quad *, vec_t, vec_t, uint4, uint4, uint4);
+void __builtin_mma_pmxvi8ger4pp (__vector_quad *, vec_t, vec_t, uint4, uint4, uint4);
+void __builtin_mma_pmxvi8ger4spp(__vector_quad *, vec_t, vec_t, uint4, uint4, uint4);
+
+void __builtin_mma_pmxvi16ger2 (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvi16ger2s (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvf16ger2 (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvbf16ger2 (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+
+void __builtin_mma_pmxvi16ger2pp (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvi16ger2spp (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvf16ger2pp (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvf16ger2pn (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvf16ger2np (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvf16ger2nn (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvbf16ger2pp (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvbf16ger2pn (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvbf16ger2np (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+void __builtin_mma_pmxvbf16ger2nn (__vector_quad *, vec_t, vec_t, uint4, uint4, uint2);
+
+void __builtin_mma_pmxvf32ger (__vector_quad *, vec_t, vec_t, uint4, uint4);
+void __builtin_mma_pmxvf32gerpp (__vector_quad *, vec_t, vec_t, uint4, uint4);
+void __builtin_mma_pmxvf32gerpn (__vector_quad *, vec_t, vec_t, uint4, uint4);
+void __builtin_mma_pmxvf32gernp (__vector_quad *, vec_t, vec_t, uint4, uint4);
+void __builtin_mma_pmxvf32gernn (__vector_quad *, vec_t, vec_t, uint4, uint4);
+
+void __builtin_mma_xvf64ger (__vector_quad *, __vector_pair, vec_t);
+void __builtin_mma_xvf64gerpp (__vector_quad *, __vector_pair, vec_t);
+void __builtin_mma_xvf64gerpn (__vector_quad *, __vector_pair, vec_t);
+void __builtin_mma_xvf64gernp (__vector_quad *, __vector_pair, vec_t);
+void __builtin_mma_xvf64gernn (__vector_quad *, __vector_pair, vec_t);
+
+void __builtin_mma_pmxvf64ger (__vector_quad *, __vector_pair, vec_t, uint4, uint2);
+void __builtin_mma_pmxvf64gerpp (__vector_quad *, __vector_pair, vec_t, uint4, uint2);
+void __builtin_mma_pmxvf64gerpn (__vector_quad *, __vector_pair, vec_t, uint4, uint2);
+void __builtin_mma_pmxvf64gernp (__vector_quad *, __vector_pair, vec_t, uint4, uint2);
+void __builtin_mma_pmxvf64gernn (__vector_quad *, __vector_pair, vec_t, uint4, uint2);
+
+void __builtin_mma_xxmtacc (__vector_quad *);
+void __builtin_mma_xxmfacc (__vector_quad *);
+void __builtin_mma_xxsetaccz (__vector_quad *);
+
+void __builtin_mma_build_acc (__vector_quad *, vec_t, vec_t, vec_t, vec_t);
+void __builtin_mma_disassemble_acc (void *, __vector_quad *);
+
+void __builtin_vsx_build_pair (__vector_pair *, vec_t, vec_t);
+void __builtin_vsx_disassemble_pair (void *, __vector_pair *);
+
+vec_t __builtin_vsx_xvcvspbf16 (vec_t);
+vec_t __builtin_vsx_xvcvbf16spn (vec_t);
+
+__vector_pair __builtin_vsx_lxvp (size_t, __vector_pair *);
+void __builtin_vsx_stxvp (__vector_pair, size_t, __vector_pair *);</pre>
+</div> </div>  <div class="nav-panel"> <p> Next: <a href="pru-built-in-functions">PRU Built-in Functions</a>, Previous: <a href="powerpc-atomic-memory-operation-functions">PowerPC Atomic Memory Operation 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">
+    &copy; 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/PowerPC-Matrix-Multiply-Assist-Built-in-Functions.html" class="_attribution-link">https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/PowerPC-Matrix-Multiply-Assist-Built-in-Functions.html</a>
+  </p>
+</div>