Re: [PATCH, take 2] Fix PR tree-optimization/49960 ,Fix self data dependence

[Jakub Jelinek <jakub at redhat dot com>]

On Mon, Nov 21, 2011 at 04:54:09PM +0200, Razya Ladelsky wrote:
> Although compute_affine_dependence() can't do anything meaningful for the 
> gather data refs,
> it may still be assigning values to the dependence relation structure, if 
> you need to use them. 
> Therefore I did not skip the call to compute_self_dependence(), which 
> indeed calls
> compute_affine_depepndence().
> 
> 
> If you think it's redundant, we can remove it.

It is not just redundant, but harmful.  compute_affine_dependence assumes
that base and offset are simple IVs, that is not true for gather deps.
So please do remove it.

	Jakub