[Bug tree-optimization/50969] 17% degradation in 168.wupwise for interleave via permutation

[wschmidt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50969

--- Comment #3 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2012-02-06 21:39:38 UTC ---
Author: wschmidt
Date: Mon Feb  6 21:39:34 2012
New Revision: 183944

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183944
Log:
2012-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

    PR tree-optimization/50969
    * tree-vect-stmts.c (vect_model_store_cost): Correct statement cost to
    use vec_perm rather than vector_stmt.
    (vect_model_load_cost): Likewise.
    * config/i386/i386.c (ix86_builtin_vectorization_cost): Change cost of
    vec_perm to be the same as other vector statements.
    * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Revise
    cost of vec_perm for TARGET_VSX.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/tree-vect-stmts.c