2013-08-24  Tobias Burnus  <burnus@net-b.de>

        PR other/33426
        * c-pragma.c (init_pragma) Add #pragma ivdep handling.
        * c-pragma.h (pragma_kind): Add PRAGMA_IVDEP.

        PR other/33426
        * c-parser.c (c_parser_pragma, c_parser_for_statement):
        Handle PRAGMA_IVDEP.
        (c_parser_statement_after_labels): Update call.

        PR other/33426
        * tree-cfg.c (replace_loop_annotate): New function.
        (execute_build_cfg): Call it.
        * gimplify.c (gimple_boolify, gimplify_expr): Handle
        * ANNOTATE_EXPR.
        * internal-fn.c (expand_ANNOTATE): New function.
        * internal-fn.def (ANNOTATE): Define as new internal function.
        * tree-core.h (tree_node_kind): Add annot_expr_ivdep_kind.
        * tree-pretty-print.c (dump_generic_node): Handle ANNOTATE_EXPR.
        * tree.def (ANNOTATE_EXPR): New DEFTREECODE.
        * doc/extend.texi (Pragmas): Document #pragma ivdep.
        * doc/generic.texi (Expressions): Document ANNOTATE_EXPR.

        PR other/33426
        * testsuite/gcc.dg/ivdep.c: New.
        * testsuite/gcc.dg/vect/vect-ivdep-1.c: New.

From-SVN: r204021