From 1833192f30abf95ec0124033882e6bcb64552e6f Mon Sep 17 00:00:00 2001 From: Vladimir Makarov Date: Wed, 14 Oct 2009 16:24:11 +0000 Subject: params.def (PARAM_IRA_LOOP_RESERVED_REGS): New. 2009-09-26 Vladimir Makarov * params.def (PARAM_IRA_LOOP_RESERVED_REGS): New. * params.h (IRA_LOOP_RESERVED_REGS): New * tree-pass.h (pass_subregs_of_mode_init, pass_subregs_of_mode_finish): Remove. * passes.c (pass_subregs_of_mode_init, pass_subregs_of_mode_finish): Remove. (pass_reginfo_init): Move before loop optimizations. * config/i386/i386.h (STACK_REG_COVER_CLASS): Define. * common.opt (fira-loop-pressure): New. * toplev.h (flag_ira_loop_pressure): New. * rtl.h (init_subregs_of_mode, finish_subregs_of_mode): New externals. * reginfo.c (init_subregs_of_mode, finish_subregs_of_mode): Make external and void type functions. (gate_subregs_of_mode_init, pass_subregs_of_mode_init, pass_subregs_of_mode_finish): Remove. * ira-costs.c (init_costs): Call init_subregs_of_mode. * regmove.c: Include ira.h. (regmove_optimize): Call ira_set_pseudo_classes after IRA based register pressure calculation in loops. * loop-invariant.c: Include REGS_H and ira.h. (struct loop_data): New members max_reg_pressure, regs_ref, and regs_live. (struct invariant): New member orig_regno. (curr_loop): New variable. (find_exits): Initialize regs_ref and regs_live. (create_new_invariant): Initialize orig_regno. (get_cover_class_and_nregs): New. (get_inv_cost): Make aregs_needed an array. Use regs_needed as an array. Add code for flag_ira_loop_pressure. (gain_for_invariant): Make new_regs an array. Add code for flag_ira_loop_pressure. (best_gain_for_invariant): Ditto. (set_move_mark): New parameter gain. Use it for debugging output. (find_invariants_to_move): Make regs_needed and new_regs an array. Add code for flag_ira_loop_pressure. (move_invariant_reg): Set up orig_regno. (move_invariants): Set up reg classes for pseudos for flag_ira_loop_pressure. (free_loop_data): Clear regs_ref and regs_live. (curr_regs_live, curr_reg_pressure, regs_set, n_regs_set, get_regno_cover_class, change_pressure, mark_regno_live, mark_regno_death, mark_reg_store, mark_reg_clobber, mark_reg_death, mark_ref_regs, calculate_loop_reg_pressure): New. (move_loop_invariants): Calculate pressure. Initialize curr_loop. * ira.c (ira): Call ira_set_pseudo_classes after IRA based register pressure calculation in loops if new regs were added. Call finish_subregs_of_mode. * opts.c (decode_options): Set up flag_ira_loop_pressure. * Makefile.in (loop-invariant.o): Add ira.h. (regmove.o): Ditto. * doc/invoke.texi (-fira-loop-pressure, ira-loop-reserved-regs): Describe. * doc/tm.texi (STACK_REG_COVER_CLASS): Describe. From-SVN: r152770 --- gcc/toplev.h | 1 + 1 file changed, 1 insertion(+) (limited to 'gcc/toplev.h') diff --git a/gcc/toplev.h b/gcc/toplev.h index cca68675f87..88ab7e8ecf0 100644 --- a/gcc/toplev.h +++ b/gcc/toplev.h @@ -142,6 +142,7 @@ extern int flag_unroll_all_loops; extern int flag_unswitch_loops; extern int flag_cprop_registers; extern int time_report; +extern int flag_ira_loop_pressure; extern int flag_ira_coalesce; extern int flag_ira_move_spills; extern int flag_ira_share_save_slots; -- cgit v1.2.1