132 lines
5.8 KiB
C
132 lines
5.8 KiB
C
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/* Data and Control Flow Analysis for Trees.
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Copyright (C) 2001-2019 Free Software Foundation, Inc.
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Contributed by Diego Novillo <dnovillo@redhat.com>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef _TREE_CFG_H
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#define _TREE_CFG_H
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/* Location to track pending stmt for edge insertion. */
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#define PENDING_STMT(e) ((e)->insns.g)
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/* Garbage collection and PCH support for edge_def. */
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extern void gt_ggc_mx (edge_def *e);
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extern void gt_pch_nx (edge_def *e);
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extern void gt_pch_nx (edge_def *e, gt_pointer_operator, void *);
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extern void init_empty_tree_cfg_for_function (struct function *);
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extern void init_empty_tree_cfg (void);
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extern void start_recording_case_labels (void);
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extern void end_recording_case_labels (void);
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extern basic_block label_to_block (struct function *, tree);
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extern void cleanup_dead_labels (void);
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extern bool group_case_labels_stmt (gswitch *);
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extern bool group_case_labels (void);
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extern void replace_uses_by (tree, tree);
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extern basic_block single_noncomplex_succ (basic_block bb);
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extern void notice_special_calls (gcall *);
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extern void clear_special_calls (void);
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extern edge find_taken_edge (basic_block, tree);
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extern void gimple_debug_bb (basic_block);
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extern basic_block gimple_debug_bb_n (int);
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extern void gimple_debug_cfg (int);
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extern void gimple_dump_cfg (FILE *, dump_flags_t);
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extern void dump_cfg_stats (FILE *);
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extern void debug_cfg_stats (void);
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extern bool computed_goto_p (gimple *);
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extern bool stmt_can_make_abnormal_goto (gimple *);
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extern basic_block get_abnormal_succ_dispatcher (basic_block);
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extern bool is_ctrl_stmt (gimple *);
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extern bool is_ctrl_altering_stmt (gimple *);
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extern bool simple_goto_p (gimple *);
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extern bool stmt_ends_bb_p (gimple *);
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extern bool gimple_seq_unreachable_p (gimple_seq);
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extern bool assert_unreachable_fallthru_edge_p (edge);
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extern void delete_tree_cfg_annotations (function *);
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extern gphi *get_virtual_phi (basic_block);
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extern gimple *first_stmt (basic_block);
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extern gimple *last_stmt (basic_block);
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extern gimple *last_and_only_stmt (basic_block);
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extern void verify_gimple_in_seq (gimple_seq);
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extern void verify_gimple_in_cfg (struct function *, bool);
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extern tree gimple_block_label (basic_block);
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extern void add_phi_args_after_copy_bb (basic_block);
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extern void add_phi_args_after_copy (basic_block *, unsigned, edge);
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extern basic_block split_edge_bb_loc (edge);
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extern bool gimple_duplicate_sese_region (edge, edge, basic_block *, unsigned,
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basic_block *, bool);
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extern bool gimple_duplicate_sese_tail (edge, edge, basic_block *, unsigned,
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basic_block *);
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extern void gather_blocks_in_sese_region (basic_block entry, basic_block exit,
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vec<basic_block> *bbs_p);
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extern void verify_sese (basic_block, basic_block, vec<basic_block> *);
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extern bool gather_ssa_name_hash_map_from (tree const &, tree const &, void *);
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extern void fold_loop_internal_call (gimple *, tree);
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extern basic_block move_sese_region_to_fn (struct function *, basic_block,
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basic_block, tree);
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extern void dump_function_to_file (tree, FILE *, dump_flags_t);
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extern void debug_function (tree, dump_flags_t);
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extern void print_loops_bb (FILE *, basic_block, int, int);
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extern void print_loops (FILE *, int);
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extern void debug (struct loop &ref);
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extern void debug (struct loop *ptr);
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extern void debug_verbose (struct loop &ref);
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extern void debug_verbose (struct loop *ptr);
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extern void debug_loops (int);
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extern void debug_loop (struct loop *, int);
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extern void debug_loop_num (unsigned, int);
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extern void remove_edge_and_dominated_blocks (edge);
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extern bool gimple_purge_dead_eh_edges (basic_block);
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extern bool gimple_purge_all_dead_eh_edges (const_bitmap);
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extern bool gimple_purge_dead_abnormal_call_edges (basic_block);
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extern bool gimple_purge_all_dead_abnormal_call_edges (const_bitmap);
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extern tree gimplify_build3 (gimple_stmt_iterator *, enum tree_code,
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tree, tree, tree, tree);
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extern tree gimplify_build2 (gimple_stmt_iterator *, enum tree_code,
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tree, tree, tree);
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extern tree gimplify_build1 (gimple_stmt_iterator *, enum tree_code,
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tree, tree);
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extern void extract_true_false_edges_from_block (basic_block, edge *, edge *);
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extern tree find_case_label_for_value (const gswitch *switch_stmt, tree val);
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extern edge find_taken_edge_switch_expr (const gswitch *switch_stmt, tree val);
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extern unsigned int execute_fixup_cfg (void);
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extern unsigned int split_critical_edges (void);
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extern basic_block insert_cond_bb (basic_block, gimple *, gimple *,
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profile_probability);
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extern bool gimple_find_sub_bbs (gimple_seq, gimple_stmt_iterator *);
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extern bool extract_true_false_controlled_edges (basic_block, basic_block,
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edge *, edge *);
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extern void generate_range_test (basic_block bb, tree index, tree low,
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tree high, tree *lhs, tree *rhs);
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extern basic_block gimple_switch_label_bb (function *, gswitch *, unsigned);
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extern basic_block gimple_switch_default_bb (function *, gswitch *);
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extern edge gimple_switch_edge (function *, gswitch *, unsigned);
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extern edge gimple_switch_default_edge (function *, gswitch *);
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/* Return true if the LHS of a call should be removed. */
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inline bool
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should_remove_lhs_p (tree lhs)
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{
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return (lhs
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&& TREE_CODE (TYPE_SIZE_UNIT (TREE_TYPE (lhs))) == INTEGER_CST
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&& !TREE_ADDRESSABLE (TREE_TYPE (lhs)));
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}
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#endif /* _TREE_CFG_H */
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