[Bug libstdc++/21554] [4.0 Regression] ext/array_allocator/2.cc execution test fails on hppa64-hpux

["pcarlini at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From pcarlini at suse dot de  2005-05-13 21:13 -------
> So this should be treated as a known latent bug, a testcase which fails or 
> passes at random on targets requiring strict alignment?  In which case 
> there should be an effective-target keyword for strict alignment and the 
> testcase should be xfailed on all such targets?

Yes, I think the testcase should be simply xfaild on targets requiring strict 
alignment, that is, requiring alignment strictly > alignment(char) for memory
involved in atomic operations. Currently (*) basic_string doesn't rebind the
passed allocator to one sufficiently aligned for atomic memory, sadly.

(*) Since we don't want to break the library ABI anytime soon, probably I
will try again to fix this long standing bug within v6 (while also keep on
working on the next basic_string in v7).

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21554