[Bug middle-end/47654] [4.6/4.7 Regression] gcc.dg/vect/no-section-anchors-vect-outer-4h.c FAILs with -floop-block

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47654

--- Comment #9 from Sebastian Pop <spop at gcc dot gnu.org> 2011-07-05 14:50:37 
UTC ---
Author: spop
Date: Tue Jul  5 14:50:34 2011
New Revision: 175861

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175861
Log:
Fix PR47654: Loop blocking should strip-mine at least two loops.

    PR tree-optimization/47654
    * graphite-blocking.c (pbb_strip_mine_time_depth): Do not return bool.
    (lst_do_strip_mine_loop): Return an int.
    (lst_do_strip_mine): Same.
    (scop_do_strip_mine): Same.
    (scop_do_block): Loop blocking should strip-mine at least two loops.
    * graphite-interchange.c (lst_interchange_select_outer): Return an int.
    (scop_do_interchange): Same.
    * graphite-poly.h (scop_do_interchange): Update declaration.
    (scop_do_strip_mine): Same.

    * gcc.dg/graphite/block-pr47654.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/block-pr47654.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-blocking.c
    trunk/gcc/graphite-interchange.c
    trunk/gcc/graphite-poly.h
    trunk/gcc/testsuite/ChangeLog