This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] Fix PR40081, wrong gimple from SRA
On Sun, 10 May 2009, H.J. Lu wrote:
> On Sun, May 10, 2009 at 3:11 AM, Richard Guenther <rguenther@suse.de> wrote:
> >
> > This fixes wrong gimple from SRA created because SRA possibly uses
> > volatile qualified scalar types as replacements which is obviously
> > bogus (and at least a missed optimization, but in this case causing
> > invalid gimple). ?The problem is latent since ever, thus I plan
> > only to fix the trunk and 4.4.
> >
> > Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
> > Also tested on the 4.4 branch, queued for applying there.
> >
> > Richard.
> >
> > 2009-05-10 ?Richard Guenther ?<rguenther@suse.de>
> >
> > ? ? ? ?PR tree-optimization/40081
> > ? ? ? ?* tree-sra.c (instantiate_element): Instantiate scalar replacements
> > ? ? ? ?using the main variant of the element type. ?Do not fiddle with
> > ? ? ? ?TREE_THIS_VOLATILE or TREE_SIDE_EFFECTS.
> >
> > ? ? ? ?* g++.dg/torture/pr40081.C: New testcase.
> >
> >
>
> This caused:
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40090
Huh, I didn't see those. But I am already testing a different fix
for probably the same reason.
Richard.