[patch] Some testsuite cleanup

[Jonathan Wakely]

On 28/07/16 22:06 +0100, Jonathan Wakely wrote:
>The dg-options for FreeBSD and Dragonfly should have included
>-std=gnu++11, or should have used dg-additional-options to add to,
>rather than override, the common dg-options.
>
>   Use dg-additional-options in libstdc++ tests
>       * testsuite/17_intro/headers/c++2011/stdc++.cc: Change target-specific
>       dg-options to dg-additional-options so that default options are used.
>       * testsuite/17_intro/headers/c++2011/stdc++_multiple_inclusion.cc:
>       Likewise.
>       * testsuite/17_intro/headers/c++2014/stdc++.cc: Likewise.
>       * testsuite/17_intro/headers/c++2014/stdc++_multiple_inclusion.cc:
>       Likewise.
>       * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc:
>       Use dg-additional-options instead of repeating the common options.

That last test also needs to ensure optimization is used or the
scan-assembler check FAILs when --target_board=unix/-O0 is used.

Tested x86_64-linux, committed to trunk.


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