Re: [PATCH] Fix PR48571, remove (most) array-ref re-construction

2011-09-20 Thread H.J. Lu
On Tue, Aug 30, 2011 at 4:59 AM, Richard Guenther wrote: > > I've run into PR48571 again, and after having fun with out data-dep > analysis code I indeed believe that we should not try to re-construct > ARRAY_REFs from code involving pointer arithmetic.  ARRAY_REFs > have constraints imposed on th

Re: [PATCH] Fix PR48571, remove (most) array-ref re-construction

2011-08-30 Thread Richard Guenther
On Tue, 30 Aug 2011, Richard Guenther wrote: > > I've run into PR48571 again, and after having fun with out data-dep > analysis code I indeed believe that we should not try to re-construct > ARRAY_REFs from code involving pointer arithmetic. ARRAY_REFs > have constraints imposed on them that are

[PATCH] Fix PR48571, remove (most) array-ref re-construction

2011-08-30 Thread Richard Guenther
I've run into PR48571 again, and after having fun with out data-dep analysis code I indeed believe that we should not try to re-construct ARRAY_REFs from code involving pointer arithmetic. ARRAY_REFs have constraints imposed on them that are relied on by data dependence analysis and that are inde