[Bug tree-optimization/68644] [6/7 Regression] FAIL: gcc.dg/tree-ssa/ivopts-lt-2.c scan-tree-dump-times ivopts "PHI <p_" 1

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68644

--- Comment #12 from rguenther at suse dot de <rguenther at suse dot de> ---
On Mon, 20 Feb 2017, wschmidt at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68644
> 
> Bill Schmidt <wschmidt at gcc dot gnu.org> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |amker at gcc dot gnu.org,
>                    |                            |rguenth at gcc dot gnu.org
> 
> --- Comment #11 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
> CCing a couple of IVOPTS experts.  I'm not sure exactly what the test is
> looking for, but have provided dumps that I hope will make it obvious what's
> wrong.

It wants to test there's one IV remaining in the loop (the IV for i and
p are merged and thus we'd get a pointer IV)