r181117 - in /branches/lra/gcc: ChangeLog lra-c...

[vmakarov at gcc dot gnu dot org]

Author: vmakarov
Date: Mon Nov  7 21:27:51 2011
New Revision: 181117

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181117
Log:
2011-11-07  Vladimir Makarov  <vmakarov@redhat.com>

	* lra-int.h (lra_coalesce, lra_spill): Change the prototype.
	(lra_need_for_spills_p): New prototype.

	* lra.c (lra): Move coalesce after assignment.  Call
	lra_need_for_spills_p before lra_create_live_ranges.  Don't check
	return value of lra_spill.

	* lra-spills.c (spill_pseudos, lra_spill): Don't return value.
	(lra_need_for_spills_p): New function.
	(lra_hard_reg_substitution): Use max_reg_num instead of regs_num.

	* lra-coalesce.c (lra_coalesce): Move side_effects call lower.
	Check restore_regno.  Process only insns containing coalesced
	pseudos for pseudo substitution.  Return flag that some moves were
	coalesced.

	* lra-constraints.c (get_final_hard_regno): Move up.
	(get_op_class, emit_secondary_memory_move): New functions.
	(check_and_process_move): Add code for quick validity check base
	on move cost.  Use emit_secondary_memory_move.
	(process_address): Don't use transformation base + disp => base +
	new index.
	(curr_reload_insn_check, reload_insn_check, reload_insn): Rename
	correspondingly to curr_usage_insns_check, usage_insns_check, and
	usage_insns.
	(substitute_pseudo): New function.
	(inherit_reload_reg): Change prototype.  Add code to reject
	generated reload inheritance insns.  Change the generated
	inheritance code for permitting not only move insns in the
	inheritance.  Use substitute_pseudo.
	(live_pseudos): New bitmap.
	(update_ebb_live_info): New function.
	(struct to_inherit): New.
	(to_inherit): New array.
	(to_inherit_num): New static variable.
	(add_to_inherit): New function.
	(inherit_in_ebb): Add code for inheritance in non-reload
	functions.  Process debug insns too.
	(lra_inheritance): Initialize/finalize check_only_pseudos and
	live_pseudos.  Call update_ebb_live_info.
	(remove_inheritance_pseudos): Process debug insns too.  Add
	special cases to undo the inheritance transformations.


Modified:
    branches/lra/gcc/ChangeLog
    branches/lra/gcc/lra-coalesce.c
    branches/lra/gcc/lra-constraints.c
    branches/lra/gcc/lra-int.h
    branches/lra/gcc/lra-spills.c
    branches/lra/gcc/lra.c