[Bug tree-optimization/53081] memcpy/memset loop recognition

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53081

--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-05 09:24:48 UTC ---
Author: rguenth
Date: Tue Jun  5 09:24:43 2012
New Revision: 188232

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188232
Log:
2012-06-05  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/53081
    * tree-loop-distribution.c (generate_memset_builtin): Handle all
    kinds of byte-sized stores.
    (classify_partition): Likewise.
    (tree_loop_distribution): Adjust seed statements used for
    !flag_tree_loop_distribution.

    * gcc.dg/tree-ssa/ldist-19.c: New testcase.
    * gcc.c-torture/execute/builtins/builtins.exp: Always pass
    -fno-tree-loop-distribute-patterns.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ldist-19.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.c-torture/execute/builtins/builtins.exp
    trunk/gcc/tree-loop-distribution.c