[Bug testsuite/52563] FAIL: gcc.dg/tree-ssa/scev-[3,4].c scan-tree-dump-times optimized "&a" 1

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52563

amker at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 CC|                            |amker at gcc dot gnu.org

--- Comment #14 from amker at gcc dot gnu.org ---
(In reply to rguenther@suse.de from comment #13)
> On Fri, 20 May 2016, andre.simoesdiasvieira at arm dot com wrote:
> 
> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52563
> > 
> > Andre Vieira <andre.simoesdiasvieira at arm dot com> changed:
> > 
> >            What    |Removed                     |Added
> > ----------------------------------------------------------------------------
> >                  CC|                            |andre.simoesdiasvieira@arm.
> >                    |                            |com
> > 
> > --- Comment #12 from Andre Vieira <andre.simoesdiasvieira at arm dot com> ---
> > Same regression observed on arm-none-eabi.
> 
> Note the scanning is for final value replacement and it seems IVO now
> has an initial value using &a as well.  So maybe instead scan the
> scev-ccp dump.

Haven't looked into it, but the use of &a in initial value is intended?  Looks
like sccp failed to propagate last value of induction variable to a_p.