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[Bug libstdc++/29286] [4.0/4.1/4.2/4.3 Regression] placement new does not change the dynamic type as it should
- From: "dberlin at dberlin dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 May 2007 00:36:09 -0000
- Subject: [Bug libstdc++/29286] [4.0/4.1/4.2/4.3 Regression] placement new does not change the dynamic type as it should
- References: <bug-29286-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #50 from dberlin at gcc dot gnu dot org 2007-05-12 01:36 -------
Subject: Re: [4.0/4.1/4.2/4.3 Regression] placement new does not change the
dynamic type as it should
On 11 May 2007 23:22:14 -0000, ian at airs dot com
<gcc-bugzilla@gcc.gnu.org> wrote:
>
>
> ------- Comment #49 from ian at airs dot com 2007-05-12 00:22 -------
> Created an attachment (id=13543)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13543&action=view)
> --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13543&action=view)
> Patch
>
> Like sands through the hourglass, so are the patches to PR 29286.
>
> This version creates a new tree code. At the RTL level the aliasing is
> represented by a list of merged alias sets. I think this is the best one so
> far. Any comments?
>
I like this a lot, and it looks like it should do exactly the right thing.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29286