Remove uses of loop->single_iv.
2010-07-15 Sebastian Pop <sebastian.pop@amd.com>
* cfgloop.c (alloc_loop): Remove initialization of loop->single_iv.
* cfgloop.h (struct loop): Remove single_iv field.
* graphite-sese-to-poly.c (graphite_loop_normal_form): Removed.
(scop_canonicalize_loops): Removed.
(scop_ivs_can_be_represented): Do not use loop->single_iv. Iterate
over all the loop phi nodes in loop->header.
(build_poly_scop): Remove use of scop_canonicalize_loops.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/graphite@162246 138bc75d-0d04-0410-961f-82ee72b054a4