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<a name="Dump-output-verbosity"></a>
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Next: <a rel="next" accesskey="n" href="Dump-types.html#Dump-types">Dump types</a>,
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Previous: <a rel="previous" accesskey="p" href="Dump-files-and-streams.html#Dump-files-and-streams">Dump files and streams</a>,
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<h4 class="subsection">9.7.4 Dump output verbosity</h4>
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<p><a name="index-dump-verbosity-1705"></a>
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The dump verbosity has the following options
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<dl>
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<dt>‘<samp><span class="samp">optimized</span></samp>’<dd>Print information when an optimization is successfully applied. It is
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up to a pass to decide which information is relevant. For example, the
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vectorizer passes print the source location of loops which got
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successfully vectorized.
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<br><dt>‘<samp><span class="samp">missed</span></samp>’<dd>Print information about missed optimizations. Individual passes
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control which information to include in the output. For example,
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<pre class="smallexample"> gcc -O2 -ftree-vectorize -fopt-info-vec-missed
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</pre>
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<p>will print information about missed optimization opportunities from
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vectorization passes on stderr.
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<br><dt>‘<samp><span class="samp">note</span></samp>’<dd>Print verbose information about optimizations, such as certain
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transformations, more detailed messages about decisions etc.
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<br><dt>‘<samp><span class="samp">all</span></samp>’<dd>Print detailed optimization information. This includes
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<var>optimized</var>, <var>missed</var>, and <var>note</var>.
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</dl>
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