[dataflow]: PATCH to remove GLAT.

[Kenneth Zadeck <zadeck at naturalbridge dot com>]

This patch was done by Maxim.  I just tested it on ppc.  This removes
the glat which is not necessary, and gets in the way on the dataflow branch.

This patch has been bootstrapped and regression tested on
powerpc64-unknown-linux-gnu and
x86_64-unknown-linux-gnu,


Kenny


2006-10-03  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
     * sched-ebb.c (ebb_head, ebb_tail, ebb_head_or_leaf_p): Removed.
    (begin_schedule_ready, schedule_ebb, ebb_head_or_leaf_p): Remove
    unnecessary argument, update all callers.
    (ebb_sched_info): Update initializer.
    (df): New static variable to keep dataflow info.
    (compute_jump_reg_dependencies): Use it instead of glat.
     * haifa-sched.c (glat_start, glat_end, glat_size, init_glat,
    init_glat1, free_glat): Removed.
    (generate_recovery_code, begin_speculative_block,
    add_to_speculative_block, init_before_recovery,
    create_recovery_block, create_check_block_twin,
    schedule_block, sched_init, add_block): Remove
    unnecessary argument, update all callers.
     * modulo-sched.c (sms_sched_info): Update initializer.
    (sms_schedule): Update call to sched_init ().
     * sched-int.h (struct sched_info): Remove unnecessary argument and
    update all callers of field 'begin_schedule_ready'.  Remove field
    'region_head_or_leaf_p'.
    (glat_start, glat_end): Remove prototypes.
    (enum SCHED_FLAGS): Remove USE_GLAT, DETACH_LIFE_INFO.  Use NEW_BBS
    instead.
    (schedule_block, sched_init, add_block, schedule_region): Update
    prototypes.
    * sched-rgn.c (df, not_in_df): New static variables.
    (check_live_1, update_live_1, add_block1): Use them instead of glat.
    (begin_schedule_read, schedule_region): Remove unnecessary argument,
    update all callers.
    (region_head_or_leaf_p): Remove.
    (region_sched_info): Update initializer.
     * config/ia64/ia64.c (set_sched_flags): Use NEW_BBS instead of
    DETACH_LIFE_INFO.