This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug c++/16381] [3.3/3.5 Regression] Structure layout bug
- From: "mmitchel at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Aug 2004 06:39:36 -0000
- Subject: [Bug c++/16381] [3.3/3.5 Regression] Structure layout bug
- References: <20040706091123.16381.zhangjie@magima.com.cn>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From mmitchel at gcc dot gnu dot org 2004-08-17 06:39 -------
It's my opinion that GCC 3.4.x is correct, and 3.5 is wrong.
Jie's suggestion that Quad have alignment 4 does not make sense to me, given the
"__attribute__ ((aligned (16)))" on its member "x".
The distinction between GCC 3.4 and GCC 3.5 is that GCC 3.4 is treating Base2 as
a POD, where as GCC 3.5 is not. I see no reason why a struct containing
"__m128" should disqualify a type from being a POD, although clearly that is not
specified by the standard.
Therefore, I've retargeted this at GCC 3.5.
--
What |Removed |Added
----------------------------------------------------------------------------
Known to fail|3.3.4 3.4.0 3.5.0 |3.3.4 3.5.0
Summary|[3.3/3.4/3.5 Regression] |[3.3/3.5 Regression]
|Structure layout bug |Structure layout bug
Target Milestone|3.4.2 |3.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16381