[PATCH] PR libstdc++/78179 run long double tests separately

[Rainer Orth]

Hi Christophe,

> I have noticed failures on hypot-long-double.cc on arm, so I suggest we add:
>
> diff --git
> a/libstdc++-v3/testsuite/26_numerics/headers/cmath/hypot-long-double.cc
> b/libstdc++-v3/testsuite/26_numerics/headers/cmath/hypot-long-double.cc
> index 8a05473..4c2e33b 100644
> --- a/libstdc++-v3/testsuite/26_numerics/headers/cmath/hypot-long-double.cc
> +++ b/libstdc++-v3/testsuite/26_numerics/headers/cmath/hypot-long-double.cc
> @@ -17,7 +17,7 @@
>
>  // { dg-options "-std=gnu++17" }
>  // { dg-do run { target c++17 } }
> -// { dg-xfail-run-if "PR 78179" { powerpc-ibm-aix* hppa-*-linux* nios2-*-* } }
> +// { dg-xfail-run-if "PR 78179" { powerpc-ibm-aix* hppa-*-linux*
> nios2-*-* arm*-*-* } }
>
>  // Run the long double tests from hypot.cc separately, because they fail on a
>  // number of targets. See PR libstdc++/78179 for details.
>
> OK?

just a nit (and not a review): I'd prefer the target list to be sorted
alphabetically, not completely random.

Thanks.
        Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University