r177409 - in /trunk/gcc: ChangeLog testsuite/Ch...

[irar@gcc.gnu.org]

Author: irar
Date: Thu Aug  4 16:47:17 2011
New Revision: 177409

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177409
Log:

        * tree-vectorizer.h (struct _stmt_vec_info): Add new field for
        pattern def statement, and its access macro.
        (NUM_PATTERNS): Set to 5.
        * tree-vect-loop.c (vect_determine_vectorization_factor): Handle
        pattern def statement.
        (vect_transform_loop): Likewise.
        * tree-vect-patterns.c (vect_vect_recog_func_ptrs): Add new
        function vect_recog_over_widening_pattern ().
        (vect_operation_fits_smaller_type): New function.
        (vect_recog_over_widening_pattern, vect_mark_pattern_stmts):
        Likewise.
        (vect_pattern_recog_1): Move the code that marks pattern
        statements to vect_mark_pattern_stmts (), and call it.  Update
        documentation.
        * tree-vect-stmts.c (vect_supportable_shift): New function.
        (vect_analyze_stmt): Handle pattern def statement.
        (new_stmt_vec_info): Initialize pattern def statement.


Added:
    trunk/gcc/testsuite/gcc.dg/vect/vect-over-widen-1.c
    trunk/gcc/testsuite/gcc.dg/vect/vect-over-widen-2.c
    trunk/gcc/testsuite/gcc.dg/vect/vect-over-widen-3.c
    trunk/gcc/testsuite/gcc.dg/vect/vect-over-widen-4.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c
    trunk/gcc/tree-vect-patterns.c
    trunk/gcc/tree-vect-stmts.c
    trunk/gcc/tree-vectorizer.h