[Bug tree-optimization/69489] missed vectorization for boolean loop, missed if-conversion

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69489

--- Comment #6 from amker at gcc dot gnu.org ---
Author: amker
Date: Wed Apr 20 15:57:01 2016
New Revision: 235292

URL: https://gcc.gnu.org/viewcvs?rev=235292&root=gcc&view=rev
Log:
        PR tree-optimization/69489
        * tree-if-conv.c (phi_convertible_by_degenerating_args): New.
        (if_convertible_phi_p): Call phi_convertible_by_degenerating_args.
        Revise dump message.
        (if_convertible_bb_p): Remove check on edge count of basic block's
        predecessors.

        gcc/testsuite/ChangeLog
        PR tree-optimization/69489
        * gcc.dg/tree-ssa/ifc-pr69489-2.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ifc-pr69489-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-if-conv.c