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| <a name="Selectors"></a> |
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| Next: <a href="Effective_002dTarget-Keywords.html#Effective_002dTarget-Keywords" accesskey="n" rel="next">Effective-Target Keywords</a>, Previous: <a href="Directives.html#Directives" accesskey="p" rel="prev">Directives</a>, Up: <a href="Test-Directives.html#Test-Directives" accesskey="u" rel="up">Test Directives</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="Selecting-targets-to-which-a-test-applies"></a> |
| <h4 class="subsection">7.2.2 Selecting targets to which a test applies</h4> |
| |
| <p>Several test directives include <var>selector</var>s to limit the targets |
| for which a test is run or to declare that a test is expected to fail |
| on particular targets. |
| </p> |
| <p>A selector is: |
| </p><ul> |
| <li> one or more target triplets, possibly including wildcard characters; |
| use ‘<samp>*-*-*</samp>’ to match any target |
| </li><li> a single effective-target keyword (see <a href="Effective_002dTarget-Keywords.html#Effective_002dTarget-Keywords">Effective-Target Keywords</a>) |
| </li><li> a logical expression |
| </li></ul> |
| |
| <p>Depending on the context, the selector specifies whether a test is |
| skipped and reported as unsupported or is expected to fail. A context |
| that allows either ‘<samp>target</samp>’ or ‘<samp>xfail</samp>’ also allows |
| ‘<samp>{ target <var>selector1</var> xfail <var>selector2</var> }</samp>’ |
| to skip the test for targets that don’t match <var>selector1</var> and the |
| test to fail for targets that match <var>selector2</var>. |
| </p> |
| <p>A selector expression appears within curly braces and uses a single |
| logical operator: one of ‘<samp>!</samp>’, ‘<samp>&&</samp>’, or ‘<samp>||</samp>’. An |
| operand is another selector expression, an effective-target keyword, |
| a single target triplet, or a list of target triplets within quotes or |
| curly braces. For example: |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample">{ target { ! "hppa*-*-* ia64*-*-*" } } |
| { target { powerpc*-*-* && lp64 } } |
| { xfail { lp64 || vect_no_align } } |
| </pre></div> |
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