[Bug tree-optimization/49749] Reassociation rank algorithm does not include all non-NULL operands

[wschmidt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49749

--- Comment #16 from William J. Schmidt <wschmidt at gcc dot gnu.org> 
2011-07-31 18:58:09 UTC ---
Author: wschmidt
Date: Sun Jul 31 18:58:06 2011
New Revision: 176984

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176984
Log:
2011-07-29  Bill Schmidt  <wschm...@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.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-reassoc.c