* sched-int.h (ds_to_dk, dk_to_ds): Declare functions.
(struct _dep): New type.
(dep_t): New typedef.
(DEP_PRO, DEP_CON, DEP_KIND): New access macros.
(DEP_STATUS): New access macro. The macro with the same name was
renamed to DEP_LINK_STATUS.
(dep_init): Declare function
(struct _dep_link): New type.
(dep_link_t): New typedef.
(DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
(DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
(DEP_LINK_STATUS): New macro.
(debug_dep_links): New debug function.
(struct _deps_list): New type.
(deps_list_t): New typedef.
(DEPS_LIST_FIRST): New access macro.
(FOR_EACH_DEP_LINK): New cycle macro.
(create_deps_list, free_deps_list, delete_deps_list): Declare
functions.
(deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
(find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
(copy_deps_list_change_con): Ditto.
(move_dep_link): Declare function.
(struct _dep_node): New type.
(dep_node_t): New typedef.
(DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.
(struct haifa_insn_data.back_deps): New field to hold backward
dependencies of the insn.
(struct haifa_insn_data.depend): Rename to forw_deps. Change its type
to deps_list_t.
(struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
Change its type to deps_list_t.
(INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
(INSN_DEPEND): Rename to INSN_FORW_DEPS.
(RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.
(INSN_COST): Move to haifa-sched.c. Use insn_cost () instead.
(DEP_STATUS): Rename to DEP_LINK_STATUS. Fix typo in the comment.
(add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
all callers.
(dep_cost): Declare.
* sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
(ds_to_dk, dk_to_ds): New functions.
(init_dep_1): New static function.
(init_dep): New function.
(copy_dep): New static function.
(dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
functions.
(detach_dep_link): New static function.
(move_dep_link): New function.
(dep_links_consistent_p, dump_dep_links): New static functions.
(debug_dep_links): New debugging function.
(deps_obstack, dl_obstack, dn_obstack): New static variables.
(alloc_deps_list, init_deps_list): New static functions.
(create_deps_list): New function.
(clear_deps_list): New static function.
(free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
(deps_list_consistent_p, dump_deps_list): New static functions.
(debug_deps_list): New function.
(add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
functions.
(find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.
(maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
use new scheduler dependencies lists.
(add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
(sched_analyze): Ditto. Initialize dependencies lists.
(add_forw_dep, compute_forward_dependences): Update to use new
scheduler dependencies lists.
(init_dependency_caches): Init deps_obstack.
(free_dependency_caches): Free deps_obstack.
(adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
new scheduler dependencies lists.
(delete_forw_dep, add_or_update_back_forw_dep): Ditto.
(add_back_forw_dep, delete_back_forw_dep): Ditto.
* sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
Update to use new scheduler dependencies lists.
(is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
(debug_dependencies): Ditto.
(schedule_region): Update comments.
* sched-ebb.c (earliest_block_with_similiar_load): Update to use new
scheduler dependencies lists.
(schedule_ebb): Update comments.
* rtl.def (DEPS_LIST): Remove.
* lists.c (unused_deps_list): Remove.
(free_list): Update assertions.
(alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
(remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
* rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
(remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
* haifa-sched.c (comments): Update.
(insn_cost1): Remove. Inline the code into insn_cost ().
(insn_cost): Update to use new scheduler dependencies lists. Move
processing of the dependency cost to dep_cost ().
(dep_cost): New function. Use it instead of insn_cost () when
evaluating cost of the dependency. Use compatible interface to
interact with the target.
(priority): Update to use new scheduler dependencies lists.
(rank_for_schedule): Ditto. Optimize heuristic that prefers the insn
with greater number of insns that depend on the insn.
(schedule_insn): Update to use new scheduler dependencies lists. Add
code to free backward dependencies lists. Inline and optimize code
from resolve_dep () - see PR28071.
(ok_for_early_queue_removal): Update to use new scheduler dependencies
lists. Update call to targetm.sched.is_costly_dependence hook.
(fix_inter_tick, try_ready, fix_tick_ready): Update to use new
scheduler dependencies lists.
(resolve_dep): Remove. Move the logic to schedule_insn ().
(init_h_i_d): Initialize dependencies lists.
(process_insn_depend_be_in_spec): Rename to
process_insn_forw_deps_be_in_spec. Update to use new scheduler
dependencies lists.
(add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
Update to use new scheduler dependencies lists.
(clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
* ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
new scheduler dependencies lists.
(build_intra_loop_deps): Ditto.
* target.h (struct _dep): Declare to use in
gcc_target.sched.is_costly_dependence.
(struct gcc_target.sched.adjust_cost): Fix typo.
(struct gcc_target.sched.is_costly_dependence): Change signature to use
single dep_t parameter instead of an equivalent triad.
(struct gcc_target.sched.adjust_cost_2): Remove.
* target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.
* reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.
* doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
documentation.
(TARGET_SCHED_ADJUST_COST_2): Remove documentation.
* doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
(REG_DEP_TRUE): Document.
* config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
Change signature to correspond to the targetm.sched.adjust_cost hook.
Update use in TARGET_SCHED_ADJUST_COST_2.
(TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
(ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
new scheduler dependencies lists.
(ia64_gen_check): Ditto.
* config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
dependencies lists.
* config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
signature to correspond to the targetm.sched.is_costly_dependence hook.
(is_costly_group): Update to use new scheduler dependencies lists.
* config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
instead of INSN_COST () macro.
From-SVN: r121494
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The directory INSTALL contains copies of the installation information
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See the file gcc/doc/gcc.texi (together with other files that it
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