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Re: Determine more IVs to be non-overflowing


> On Wed, 6 Jul 2016, Jan Hubicka wrote:
> 
> > > Jan Hubicka <hubicka@ucw.cz> writes:
> > > 
> > > > Bootstrapped/regtested x86_64-linux, OK?
> > > >
> > > > 	* gcc.dg/tree-ssa/scev-14.c: new testcase.
> > > 
> > > FAIL: gcc.dg/tree-ssa/scev-14.c scan-tree-dump-not ivopts "Overflowness wrto loop niter:\tOverflow"
> > 
> > Aha, this is wrong version of testcase. The scan-tree-dump-not doesn't match
> > until we resolve decreasing unsigned iv variables as non-overlapping.  I will
> > test dropping that pattern for now. Sorry for that.
> 
> But did you test the patch?  You should have noticed this during your
> own testing...

Yeah, I managed to keep unrelated change to ivopts in the tree that made the testcase
to pass. Sorry for that.

Honza
> 
> Richard.


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