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| <a name="Dump-output-verbosity-1"></a> |
| <h4 class="subsection">9.7.4 Dump output verbosity</h4> |
| <a name="index-dump-verbosity"></a> |
| |
| <p>The dump verbosity has the following options |
| </p> |
| <dl compact="compact"> |
| <dt>‘<samp>optimized</samp>’</dt> |
| <dd><p>Print information when an optimization is successfully applied. It is |
| up to a pass to decide which information is relevant. For example, the |
| vectorizer passes print the source location of loops which got |
| successfully vectorized. |
| </p> |
| </dd> |
| <dt>‘<samp>missed</samp>’</dt> |
| <dd><p>Print information about missed optimizations. Individual passes |
| control which information to include in the output. For example, |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample">gcc -O2 -ftree-vectorize -fopt-info-vec-missed |
| </pre></div> |
| |
| <p>will print information about missed optimization opportunities from |
| vectorization passes on stderr. |
| </p> |
| </dd> |
| <dt>‘<samp>note</samp>’</dt> |
| <dd><p>Print verbose information about optimizations, such as certain |
| transformations, more detailed messages about decisions etc. |
| </p> |
| </dd> |
| <dt>‘<samp>all</samp>’</dt> |
| <dd><p>Print detailed optimization information. This includes |
| <var>optimized</var>, <var>missed</var>, and <var>note</var>. |
| </p></dd> |
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