2013-09-10 Richard Biener <rguenther@suse.de>
* tree-data-ref.h (build_rdg): Drop all parameters but loop.
* tree-data-ref.c (create_rdg_vertices): Collect all data
references, signal failure to the caller, use data-ref API.
(build_rdg): Compute data references only once. Maintain
lifetime of data references and data dependences from within
RDG.
(free_rdg): Free dependence relations.
* tree-loop-distribution.c (rdg_flag_uses): Drop weird code
inventing extra dependences.
(distribute_loop): Update for RDG API changes.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202431 138bc75d-0d04-0410-961f-82ee72b054a4