2008-10-06 Vladimir Makarov <vmakarov@redhat.com>
PR middle-end/37535
* ira-lives.c (mark_reg_live, mark_reg_dead): New functions.
(mark_ref_live, mark_ref_dead): Use them.
(def_conflicts_with_inputs_p): Remove.
(mark_early_clobbers): New function.
(process_bb_node_lives): Call preprocess_constraints and
mark_early_clobbers.
* doc/rtx.texi (clobber): Change how RA deals with clobbers.
From-SVN: r140906
