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Subject: [Bug tree-optimization/50969] 17% degradation in 168.wupwise for interleave via permutation
Date: Tue, 14 Feb 2012 19:42:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50969

--- Comment #5 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2012-02-14 19:40:22 UTC ---
Author: wschmidt
Date: Tue Feb 14 19:40:13 2012
New Revision: 184225

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184225
Log:
2012-02-14  Bill Schmidt <wschmidt@linux.vnet.ibm.com>
        Ira Rosen <irar@il.ibm.com>

    PR tree-optimization/50031
    PR tree-optimization/50969
    * targhooks.c (default_builtin_vectorization_cost): Handle
    vec_promote_demote.
    * target.h (enum vect_cost_for_stmt): Add vec_promote_demote.
    * tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Handle
    all types of reduction and pattern statements.
    (vect_estimate_min_profitable_iters): Likewise.
    * tree-vect-stmts.c (vect_model_promotion_demotion_cost): New function.
    (vect_model_store_cost): Use vec_perm rather than vector_stmt for
    statement cost.
    (vect_model_load_cost): Likewise.
    (vect_get_load_cost): Likewise; add dump logic for explicit realigns.
    (vectorizable_type_demotion): Call vect_model_promotion_demotion_cost.
    (vectorizable_type_promotion): Likewise.
    * config/spu/spu.c (spu_builtin_vectorization_cost): Handle
    vec_promote_demote.
    * config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
    * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Update
    vec_perm for VSX and handle vec_promote_demote.


Modified:
    branches/ibm/gcc-4_6-branch/gcc/ChangeLog.ibm
    branches/ibm/gcc-4_6-branch/gcc/config/i386/i386.c
    branches/ibm/gcc-4_6-branch/gcc/config/rs6000/rs6000.c
    branches/ibm/gcc-4_6-branch/gcc/config/spu/spu.c
    branches/ibm/gcc-4_6-branch/gcc/target.h
    branches/ibm/gcc-4_6-branch/gcc/targhooks.c
    branches/ibm/gcc-4_6-branch/gcc/tree-vect-loop.c
    branches/ibm/gcc-4_6-branch/gcc/tree-vect-stmts.c