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Diffstat (limited to 'gcc-4.2.1/gcc/cfghooks.h')
| -rw-r--r-- | gcc-4.2.1/gcc/cfghooks.h | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/gcc-4.2.1/gcc/cfghooks.h b/gcc-4.2.1/gcc/cfghooks.h deleted file mode 100644 index fcdc23f40..000000000 --- a/gcc-4.2.1/gcc/cfghooks.h +++ /dev/null @@ -1,192 +0,0 @@ -/* Hooks for cfg representation specific functions. - Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc. - Contributed by Sebastian Pop <s.pop@laposte.net> - -This file is part of GCC. - -GCC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GCC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GCC; see the file COPYING. If not, write to -the Free Software Foundation, 51 Franklin Street, Fifth Floor, -Boston, MA 02110-1301, USA. */ - -#ifndef GCC_CFGHOOKS_H -#define GCC_CFGHOOKS_H - -struct cfg_hooks -{ - /* Name of the corresponding ir. */ - const char *name; - - /* Debugging. */ - int (*verify_flow_info) (void); - void (*dump_bb) (basic_block, FILE *, int); - - /* Basic CFG manipulation. */ - - /* Return new basic block. */ - basic_block (*create_basic_block) (void *head, void *end, basic_block after); - - /* Redirect edge E to the given basic block B and update underlying program - representation. Returns edge representing redirected branch (that may not - be equivalent to E in the case of duplicate edges being removed) or NULL - if edge is not easily redirectable for whatever reason. */ - edge (*redirect_edge_and_branch) (edge e, basic_block b); - - /* Same as the above but allows redirecting of fallthru edges. In that case - newly created forwarder basic block is returned. The edge must - not be abnormal. */ - basic_block (*redirect_edge_and_branch_force) (edge, basic_block); - - /* Remove statements corresponding to a given basic block. */ - void (*delete_basic_block) (basic_block); - - /* Creates a new basic block just after basic block B by splitting - everything after specified instruction I. */ - basic_block (*split_block) (basic_block b, void * i); - - /* Move block B immediately after block A. */ - bool (*move_block_after) (basic_block b, basic_block a); - - /* Return true when blocks A and B can be merged into single basic block. */ - bool (*can_merge_blocks_p) (basic_block a, basic_block b); - - /* Merge blocks A and B. */ - void (*merge_blocks) (basic_block a, basic_block b); - - /* Predict edge E using PREDICTOR to given PROBABILITY. */ - void (*predict_edge) (edge e, enum br_predictor predictor, int probability); - - /* Return true if the one of outgoing edges is already predicted by - PREDICTOR. */ - bool (*predicted_by_p) (basic_block bb, enum br_predictor predictor); - - /* Return true when block A can be duplicated. */ - bool (*can_duplicate_block_p) (basic_block a); - - /* Duplicate block A. */ - basic_block (*duplicate_block) (basic_block a); - - /* Higher level functions representable by primitive operations above if - we didn't have some oddities in RTL and Tree representations. */ - basic_block (*split_edge) (edge); - void (*make_forwarder_block) (edge); - - /* Tries to make the edge fallthru. */ - void (*tidy_fallthru_edge) (edge); - - /* Say whether a block ends with a call, possibly followed by some - other code that must stay with the call. */ - bool (*block_ends_with_call_p) (basic_block); - - /* Say whether a block ends with a conditional branch. Switches - and unconditional branches do not qualify. */ - bool (*block_ends_with_condjump_p) (basic_block); - - /* Add fake edges to the function exit for any non constant and non noreturn - calls, volatile inline assembly in the bitmap of blocks specified by - BLOCKS or to the whole CFG if BLOCKS is zero. Return the number of blocks - that were split. - - The goal is to expose cases in which entering a basic block does not imply - that all subsequent instructions must be executed. */ - int (*flow_call_edges_add) (sbitmap); - - /* This function is called immediately after edge E is added to the - edge vector E->dest->preds. */ - void (*execute_on_growing_pred) (edge); - - /* This function is called immediately before edge E is removed from - the edge vector E->dest->preds. */ - void (*execute_on_shrinking_pred) (edge); - - /* A hook for duplicating loop in CFG, currently this is used - in loop versioning. */ - bool (*cfg_hook_duplicate_loop_to_header_edge) (struct loop *loop, edge e, - struct loops *loops, - unsigned int ndupl, - sbitmap wont_exit, - edge orig, edge *to_remove, - unsigned int *n_to_remove, - int flags); - - /* Add condition to new basic block and update CFG used in loop - versioning. */ - void (*lv_add_condition_to_bb) (basic_block, basic_block, basic_block, - void *); - /* Update the PHI nodes in case of loop versioning. */ - void (*lv_adjust_loop_header_phi) (basic_block, basic_block, - basic_block, edge); - - /* Given a condition BB extract the true/false taken/not taken edges - (depending if we are on tree's or RTL). */ - void (*extract_cond_bb_edges) (basic_block, edge *, edge *); - - - /* Add PHI arguments queued in PENDINT_STMT list on edge E to edge - E->dest (only in tree-ssa loop versioning. */ - void (*flush_pending_stmts) (edge); -}; - -extern void verify_flow_info (void); -extern void dump_bb (basic_block, FILE *, int); -extern edge redirect_edge_and_branch (edge, basic_block); -extern basic_block redirect_edge_and_branch_force (edge, basic_block); -extern edge split_block (basic_block, void *); -extern edge split_block_after_labels (basic_block); -extern bool move_block_after (basic_block, basic_block); -extern void delete_basic_block (basic_block); -extern basic_block split_edge (edge); -extern basic_block create_basic_block (void *, void *, basic_block); -extern basic_block create_empty_bb (basic_block); -extern bool can_merge_blocks_p (basic_block, basic_block); -extern void merge_blocks (basic_block, basic_block); -extern edge make_forwarder_block (basic_block, bool (*)(edge), - void (*) (basic_block)); -extern void tidy_fallthru_edge (edge); -extern void tidy_fallthru_edges (void); -extern void predict_edge (edge e, enum br_predictor predictor, int probability); -extern bool predicted_by_p (basic_block bb, enum br_predictor predictor); -extern bool can_duplicate_block_p (basic_block); -extern basic_block duplicate_block (basic_block, edge, basic_block); -extern bool block_ends_with_call_p (basic_block bb); -extern bool block_ends_with_condjump_p (basic_block bb); -extern int flow_call_edges_add (sbitmap); -extern void execute_on_growing_pred (edge); -extern void execute_on_shrinking_pred (edge); -extern bool cfg_hook_duplicate_loop_to_header_edge (struct loop *loop, edge, - struct loops *loops, - unsigned int ndupl, - sbitmap wont_exit, - edge orig, edge *to_remove, - unsigned int *n_to_remove, - int flags); - -extern void lv_flush_pending_stmts (edge); -extern void extract_cond_bb_edges (basic_block, edge *, edge*); -extern void lv_adjust_loop_header_phi (basic_block, basic_block, basic_block, - edge); -extern void lv_add_condition_to_bb (basic_block, basic_block, basic_block, - void *); - -/* Hooks containers. */ -extern struct cfg_hooks tree_cfg_hooks; -extern struct cfg_hooks rtl_cfg_hooks; -extern struct cfg_hooks cfg_layout_rtl_cfg_hooks; - -/* Declarations. */ -extern int ir_type (void); -extern void rtl_register_cfg_hooks (void); -extern void cfg_layout_rtl_register_cfg_hooks (void); -extern void tree_register_cfg_hooks (void); - -#endif /* GCC_CFGHOOKS_H */ |