-commits"
> <cfe-commits@lists.llvm.org>
> Sent: Monday, September 19, 2016 11:21:33 PM
> Subject: Re: r281277 - [Sema] Fix PR30346: relax __builtin_object_size checks.
>
>
> WFM; I'll put together a patch that only allows this under
> -fno-strict-aliasing.
>
Noted; thanks for the correction. :)
On Tue, Sep 20, 2016 at 3:04 AM, Joerg Sonnenberger via cfe-commits <
cfe-commits@lists.llvm.org> wrote:
> On Mon, Sep 19, 2016 at 09:21:33PM -0700, George Burgess IV wrote:
> > I'm entirely unfamiliar with struct-path-tbaa, so Hal, do you see a
> reason
> >
On Mon, Sep 19, 2016 at 09:21:33PM -0700, George Burgess IV wrote:
> I'm entirely unfamiliar with struct-path-tbaa, so Hal, do you see a reason
> why struct-path-tbaa wouldn't play nicely with flexible arrays at the end
> of types? Glancing at it, I don't think it should cause problems, but a
>
WFM; I'll put together a patch that only allows this under
-fno-strict-aliasing.
I'm entirely unfamiliar with struct-path-tbaa, so Hal, do you see a reason
why struct-path-tbaa wouldn't play nicely with flexible arrays at the end
of types? Glancing at it, I don't think it should cause problems,
On Tue, Sep 13, 2016 at 12:51:52PM -0700, Richard Smith wrote:
> On Tue, Sep 13, 2016 at 10:44 AM, Joerg Sonnenberger via cfe-commits <
> cfe-commits@lists.llvm.org> wrote:
>
> > IMO this should be restricted to code that explicitly disables C/C++
> > aliasing rules.
>
>
> Do you mean
Yeah, this patch didn't give me the warm fuzzies, either.
AFAICT, our only other options are having some sort of struct whitelist
(either hard-coded, or given as a flag), or telling people to turn
_FORTIFY_SOURCE down if they have code that looks like this. Given that
this is apparently common in
On Tue, Sep 13, 2016 at 10:44 AM, Joerg Sonnenberger via cfe-commits <
cfe-commits@lists.llvm.org> wrote:
> On Mon, Sep 12, 2016 at 11:50:36PM -, George Burgess IV via
> cfe-commits wrote:
> > Author: gbiv
> > Date: Mon Sep 12 18:50:35 2016
> > New Revision: 281277
> >
> > URL:
On Mon, Sep 12, 2016 at 11:50:36PM -, George Burgess IV via cfe-commits
wrote:
> Author: gbiv
> Date: Mon Sep 12 18:50:35 2016
> New Revision: 281277
>
> URL: http://llvm.org/viewvc/llvm-project?rev=281277=rev
> Log:
> [Sema] Fix PR30346: relax __builtin_object_size checks.
>
> This patch
Author: gbiv
Date: Mon Sep 12 18:50:35 2016
New Revision: 281277
URL: http://llvm.org/viewvc/llvm-project?rev=281277=rev
Log:
[Sema] Fix PR30346: relax __builtin_object_size checks.
This patch makes us act more conservatively when trying to determine
the objectsize for an array at the end of an
