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<title>GNU Compiler Collection (GCC) Internals: Optimization groups</title>
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<a name="Optimization-groups"></a>
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Next: <a href="Dump-files-and-streams.html#Dump-files-and-streams" accesskey="n" rel="next">Dump files and streams</a>, Previous: <a href="Dump-setup.html#Dump-setup" accesskey="p" rel="prev">Dump setup</a>, Up: <a href="Optimization-info.html#Optimization-info" accesskey="u" rel="up">Optimization info</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>
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<a name="Optimization-groups-1"></a>
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<h4 class="subsection">9.7.2 Optimization groups</h4>
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<a name="index-optimization-groups"></a>
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<p>The optimization passes are grouped into several categories. Currently
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defined categories in <samp>dumpfile.h</samp> are
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</p>
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<dl compact="compact">
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<dt><code>OPTGROUP_IPA</code>
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<a name="index-OPTGROUP_005fIPA"></a>
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</dt>
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<dd><p>IPA optimization passes. Enabled by <samp>-ipa</samp>
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</p>
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</dd>
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<dt><code>OPTGROUP_LOOP</code>
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<a name="index-OPTGROUP_005fLOOP"></a>
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</dt>
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<dd><p>Loop optimization passes. Enabled by <samp>-loop</samp>.
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</p>
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</dd>
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<dt><code>OPTGROUP_INLINE</code>
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<a name="index-OPTGROUP_005fINLINE"></a>
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</dt>
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<dd><p>Inlining passes. Enabled by <samp>-inline</samp>.
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</p>
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</dd>
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<dt><code>OPTGROUP_VEC</code>
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<a name="index-OPTGROUP_005fVEC"></a>
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</dt>
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<dd><p>Vectorization passes. Enabled by <samp>-vec</samp>.
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</p>
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</dd>
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<dt><code>OPTGROUP_OTHER</code>
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<a name="index-OPTGROUP_005fOTHER"></a>
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</dt>
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<dd><p>All other optimization passes which do not fall into one of the above.
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</p>
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</dd>
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<dt><code>OPTGROUP_ALL</code>
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<a name="index-OPTGROUP_005fALL"></a>
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</dt>
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<dd><p>All optimization passes. Enabled by <samp>-all</samp>.
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</p>
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</dd>
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</dl>
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<p>By using groups a user could selectively enable optimization
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information only for a group of passes. By default, the optimization
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information for all the passes is dumped.
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</p>
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