[rfc] fix iv creation in vectorizer

[Richard Henderson]

On Mon, Sep 19, 2005 at 09:48:48AM -0400, Diego Novillo wrote:
> merge_alias_info is usually called as a side-effect of 
> propagate_tree_value.  Are you sure you need to manhandle things here 
> instead of using helpers?

I'm not sure of anything, really.  I copied the duplicate_ssa_name_ptr_info
thing from the old code, but then still got ICEs.  So I added the 
merge_alias_info call and the ICE went away.  What helper *should*
I be using?


r~