[Bug c/52023] [C11] _Alignof (double) yields wrong value on x86

[jsm28 at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023

--- Comment #13 from Joseph S. Myers <jsm28 at gcc dot gnu.org> ---
Author: jsm28
Date: Wed Dec  4 22:57:20 2013
New Revision: 205685

URL: http://gcc.gnu.org/viewcvs?rev=205685&root=gcc&view=rev
Log:
    PR c/52023
c-family:
    * c-common.c (c_sizeof_or_alignof_type): Add parameter min_alignof
    and check field alignment if set.
    * c-common.h (c_sizeof_or_alignof_type): Update prototype.
    (c_sizeof, c_alignof): Update calls to c_sizeof_or_alignof_type.

c:
    * c-parser.c (c_parser_alignas_specifier): Use
    c_sizeof_or_alignof_type instead of c_alignof.
    (c_parser_alignof_expression): Likewise, with min_alignof
    parameter depending on alignof spelling used.

cp:
    * typeck.c (cxx_sizeof_or_alignof_type): Update call to
    c_sizeof_or_alignof_type.

objc:
    * objc-act.c (objc_synthesize_getter): Update calls to
    c_sizeof_or_alignof_type.

testsuite:
    * gcc.dg/c11-align-6.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/c11-align-6.c
Modified:
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-common.c
    trunk/gcc/c-family/c-common.h
    trunk/gcc/c/ChangeLog
    trunk/gcc/c/c-parser.c
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/typeck.c
    trunk/gcc/objc/ChangeLog
    trunk/gcc/objc/objc-act.c
    trunk/gcc/testsuite/ChangeLog