* config/s390/s390.c (s390_safe_attr_type): New function.

    * config/s390/s390.c (s390_safe_attr_type): New function.
        (s390_use_dfa_pipeline_interface): New function, return true for z900.
        (s390_issue_rate): New function.
        (s390_agen_dep_p): New function.
        (addr_generation_dependency_p): Use 's390_safe_attr_type'.
        (s390_adjust_cost): Return 'cost' if new DFA is used.
        (s390_adjust_priority): Delete function.
        * config/s390/s390-protos.h: (s390_agen_dep_p): New prototype.
        * config/s390/s390.md (atype attribute): Attribute 'atype' default
        determined by 'op_type'.
        (type attribute): Added more type attributes.
        * config/s390/2064.md: New DFA description for z900 pipeline.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@61321 138bc75d-0d04-0410-961f-82ee72b054a4