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<title>Optimization groups (GNU Compiler Collection (GCC) Internals)</title>

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<a name="Optimization-groups"></a>
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<a name="Optimization-groups-1"></a>
<h4 class="subsection">9.7.2 Optimization groups</h4>
<a name="index-optimization-groups"></a>
<p>The optimization passes are grouped into several categories. Currently
defined categories in <samp>dumpfile.h</samp> are
</p>
<dl compact="compact">
<dt><code>OPTGROUP_IPA</code>
<a name="index-OPTGROUP_005fIPA"></a>
</dt>
<dd><p>IPA optimization passes. Enabled by <samp>-ipa</samp>
</p>
</dd>
<dt><code>OPTGROUP_LOOP</code>
<a name="index-OPTGROUP_005fLOOP"></a>
</dt>
<dd><p>Loop optimization passes. Enabled by <samp>-loop</samp>.
</p>
</dd>
<dt><code>OPTGROUP_INLINE</code>
<a name="index-OPTGROUP_005fINLINE"></a>
</dt>
<dd><p>Inlining passes. Enabled by <samp>-inline</samp>.
</p>
</dd>
<dt><code>OPTGROUP_OMP</code>
<a name="index-OPTGROUP_005fOMP"></a>
</dt>
<dd><p>OMP (Offloading and Multi Processing) passes. Enabled by
<samp>-omp</samp>.
</p>
</dd>
<dt><code>OPTGROUP_VEC</code>
<a name="index-OPTGROUP_005fVEC"></a>
</dt>
<dd><p>Vectorization passes. Enabled by <samp>-vec</samp>.
</p>
</dd>
<dt><code>OPTGROUP_OTHER</code>
<a name="index-OPTGROUP_005fOTHER"></a>
</dt>
<dd><p>All other optimization passes which do not fall into one of the above.
</p>
</dd>
<dt><code>OPTGROUP_ALL</code>
<a name="index-OPTGROUP_005fALL"></a>
</dt>
<dd><p>All optimization passes. Enabled by <samp>-optall</samp>.
</p>
</dd>
</dl>

<p>By using groups a user could selectively enable optimization
information only for a group of passes. By default, the optimization
information for all the passes is dumped.
</p>


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