diff options
Diffstat (limited to 'gcc/reorg.c')
| -rw-r--r-- | gcc/reorg.c | 83 |
1 files changed, 43 insertions, 40 deletions
diff --git a/gcc/reorg.c b/gcc/reorg.c index c342f72aef2..2e41e71e492 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -222,25 +222,26 @@ static int *uid_to_ruid; /* Highest valid index in `uid_to_ruid'. */ static int max_uid; -static void mark_referenced_resources PROTO((rtx, struct resources *, int)); -static void mark_set_resources PROTO((rtx, struct resources *, int, int)); -static int stop_search_p PROTO((rtx, int)); -static int resource_conflicts_p PROTO((struct resources *, - struct resources *)); -static int insn_references_resource_p PROTO((rtx, struct resources *, int)); -static int insn_sets_resource_p PROTO((rtx, struct resources *, int)); -static rtx find_end_label PROTO((void)); -static rtx emit_delay_sequence PROTO((rtx, rtx, int)); -static rtx add_to_delay_list PROTO((rtx, rtx)); -static rtx delete_from_delay_slot PROTO((rtx)); -static void delete_scheduled_jump PROTO((rtx)); -static void note_delay_statistics PROTO((int, int)); -static rtx optimize_skip PROTO((rtx)); -static int get_jump_flags PROTO((rtx, rtx)); -static int rare_destination PROTO((rtx)); -static int mostly_true_jump PROTO((rtx, rtx)); -static rtx get_branch_condition PROTO((rtx, rtx)); -static int condition_dominates_p PROTO((rtx, rtx)); +static void mark_referenced_resources PROTO((rtx, struct resources *, int)); +static void mark_set_resources PROTO((rtx, struct resources *, + int, int)); +static int stop_search_p PROTO((rtx, int)); +static int resource_conflicts_p PROTO((struct resources *, + struct resources *)); +static int insn_references_resource_p PROTO((rtx, struct resources *, int)); +static int insn_sets_resource_p PROTO((rtx, struct resources *, int)); +static rtx find_end_label PROTO((void)); +static rtx emit_delay_sequence PROTO((rtx, rtx, int)); +static rtx add_to_delay_list PROTO((rtx, rtx)); +static rtx delete_from_delay_slot PROTO((rtx)); +static void delete_scheduled_jump PROTO((rtx)); +static void note_delay_statistics PROTO((int, int)); +static rtx optimize_skip PROTO((rtx)); +static int get_jump_flags PROTO((rtx, rtx)); +static int rare_destination PROTO((rtx)); +static int mostly_true_jump PROTO((rtx, rtx)); +static rtx get_branch_condition PROTO((rtx, rtx)); +static int condition_dominates_p PROTO((rtx, rtx)); static rtx steal_delay_list_from_target PROTO((rtx, rtx, rtx, rtx, struct resources *, struct resources *, @@ -251,29 +252,30 @@ static rtx steal_delay_list_from_fallthrough PROTO((rtx, rtx, rtx, rtx, struct resources *, struct resources *, int, int *, int *)); -static void try_merge_delay_insns PROTO((rtx, rtx)); -static rtx redundant_insn PROTO((rtx, rtx, rtx)); -static int own_thread_p PROTO((rtx, rtx, int)); -static int find_basic_block PROTO((rtx)); -static void update_block PROTO((rtx, rtx)); -static int reorg_redirect_jump PROTO((rtx, rtx)); -static void update_reg_dead_notes PROTO((rtx, rtx)); -static void fix_reg_dead_note PROTO((rtx, rtx)); -static void update_reg_unused_notes PROTO((rtx, rtx)); -static void update_live_status PROTO((rtx, rtx)); -static rtx next_insn_no_annul PROTO((rtx)); static rtx find_dead_or_set_registers PROTO ((rtx, struct resources *, rtx *, int, struct resources, struct resources)); -static void mark_target_live_regs PROTO((rtx, struct resources *)); -static void fill_simple_delay_slots PROTO((int)); -static rtx fill_slots_from_thread PROTO((rtx, rtx, rtx, rtx, int, int, - int, int, int *, rtx)); -static void fill_eager_delay_slots PROTO((void)); -static void relax_delay_slots PROTO((rtx)); -static void make_return_insns PROTO((rtx)); +static void try_merge_delay_insns PROTO((rtx, rtx)); +static rtx redundant_insn PROTO((rtx, rtx, rtx)); +static int own_thread_p PROTO((rtx, rtx, int)); +static int find_basic_block PROTO((rtx)); +static void update_block PROTO((rtx, rtx)); +static int reorg_redirect_jump PROTO((rtx, rtx)); +static void update_reg_dead_notes PROTO((rtx, rtx)); +static void fix_reg_dead_note PROTO((rtx, rtx)); +static void update_reg_unused_notes PROTO((rtx, rtx)); +static void update_live_status PROTO((rtx, rtx)); +static rtx next_insn_no_annul PROTO((rtx)); +static void mark_target_live_regs PROTO((rtx, struct resources *)); +static void fill_simple_delay_slots PROTO((int)); +static rtx fill_slots_from_thread PROTO((rtx, rtx, rtx, rtx, int, int, + int, int, int *, rtx)); +static void fill_eager_delay_slots PROTO((void)); +static void relax_delay_slots PROTO((rtx)); +static void make_return_insns PROTO((rtx)); static int redirect_with_delay_slots_safe_p PROTO ((rtx, rtx, rtx)); static int redirect_with_delay_list_safe_p PROTO ((rtx, rtx, rtx)); +static int check_annul_list_true_false PROTO ((int, rtx)); /* Given X, some rtl, and RES, a pointer to a `struct resource', mark which resources are references by the insn. If INCLUDE_DELAYED_EFFECTS @@ -1006,8 +1008,8 @@ add_to_delay_list (insn, delay_list) return delay_list; } -/* Delete INSN from the delay slot of the insn that it is in. This may - produce an insn without anything in its delay slots. */ +/* Delete INSN from the delay slot of the insn that it is in, which may + produce an insn with no delay slots. Return the new insn. */ static rtx delete_from_delay_slot (insn) @@ -1646,6 +1648,7 @@ check_annul_list_true_false (annul_true_p, delay_list) return 0; } } + return 1; } @@ -1689,8 +1692,8 @@ steal_delay_list_from_target (insn, condition, seq, delay_list, int total_slots_filled = *pslots_filled; rtx new_delay_list = 0; int must_annul = *pannul_p; - int i; int used_annul = 0; + int i; struct resources cc_set; /* We can't do anything if there are more delay slots in SEQ than we |