[Bug libstdc++/65147] alignment of std::atomic object is not correct

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65147

--- Comment #11 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Apr  9 11:15:44 2015
New Revision: 221945

URL: https://gcc.gnu.org/viewcvs?rev=221945&root=gcc&view=rev
Log:
2015-04-09  Jonathan Wakely  <jwakely@redhat.com>
        Richard Henderson  <rth@redhat.com>

    PR libstdc++/65147
    * include/bits/atomic_base.h (__atomic_base<_ITp>): Increase
    alignment.
    * include/std/atomic (atomic): For types with a power of two size set
    alignment to at least the size.
    * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error line number.
    * testsuite/29_atomics/atomic/65147.cc: New.
    * testsuite/29_atomics/atomic_integral/65147.cc: New.

Added:
    trunk/libstdc++-v3/testsuite/29_atomics/atomic/65147.cc
      - copied, changed from r221943,
trunk/libstdc++-v3/testsuite/29_atomics/atomic/60695.cc
    trunk/libstdc++-v3/testsuite/29_atomics/atomic_integral/65147.cc
      - copied, changed from r221943,
trunk/libstdc++-v3/testsuite/29_atomics/atomic/60695.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/atomic_base.h
    trunk/libstdc++-v3/include/std/atomic
    trunk/libstdc++-v3/testsuite/29_atomics/atomic/60695.cc