r175681 - in /trunk/gcc: ChangeLog testsuite/Ch...

[irar at gcc dot gnu dot org]

Author: irar
Date: Thu Jun 30 06:37:41 2011
New Revision: 175681

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175681
Log:

        * tree-vect-loop.c (vect_determine_vectorization_factor): Handle
        both pattern and original statements if necessary.
        (vect_transform_loop): Likewise.
        * tree-vect-patterns.c (vect_pattern_recog): Update documentation.
        * tree-vect-stmts.c (vect_mark_relevant): Add new argument.
        Mark the pattern statement only if the original statement doesn't
        have its own uses.
        (process_use): Call vect_mark_relevant with additional parameter.
        (vect_mark_stmts_to_be_vectorized): Likewise.
        (vect_get_vec_def_for_operand): Use vectorized pattern statement.
        (vect_analyze_stmt): Handle both pattern and original statements
        if necessary.
        (vect_transform_stmt): Don't store vectorized pattern statement
        in the original statement.
        (vect_is_simple_use_1): Use related pattern statement only if the
        original statement is irrelevant.
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Likewise.


Added:
    trunk/gcc/testsuite/gcc.dg/vect/slp-widen-mult-half.c
    trunk/gcc/testsuite/gcc.dg/vect/vect-widen-mult-half.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-slp.c
    trunk/gcc/tree-vect-stmts.c