re PR tree-optimization/49749 (Reassociation rank algorithm does not include all non-NULL operands)
2011-07-29 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/49749
* tree-ssa-reassoc.c (get_rank): New forward declaration.
(PHI_LOOP_BIAS): New macro.
(phi_rank): New function.
(loop_carried_phi): Likewise.
(propagate_rank): Likewise.
(get_rank): Add calls to phi_rank and propagate_rank.