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7.2.2 Selecting targets to which a test applies

Several test directives include selectors to limit the targets for which a test is run or to declare that a test is expected to fail on particular targets.

A selector is:

Depending on the context, the selector specifies whether a test is skipped and reported as unsupported or is expected to fail. Use `*-*-*' to match any target.

A selector expression appears within curly braces and uses a single logical operator: one of `!', `&&', or `||'. 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:

     { target { ! "hppa*-*-* ia64*-*-*" } }
     { target { powerpc*-*-* && lp64 } }
     { xfail { lp64 || vect_no_align } }