X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fcfghooks.h;h=e581d9cd5592696d68a555b9524904accd0c2c1c;hb=f63eb5d36d7d12fc7f0703dfc6fa5cbbf7315f18;hp=92a458ed4aa73e6f572c925d61e25efb5d2fcc80;hpb=26b12c910165d4ddace8a2a683dd072c0da89bb9;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/cfghooks.h b/gcc/cfghooks.h index 92a458ed4aa..e581d9cd559 100644 --- a/gcc/cfghooks.h +++ b/gcc/cfghooks.h @@ -1,12 +1,12 @@ /* Hooks for cfg representation specific functions. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. Contributed by Sebastian Pop 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) +the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, @@ -15,9 +15,8 @@ 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, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ +along with GCC; see the file COPYING3. If not see +. */ #ifndef GCC_CFGHOOKS_H #define GCC_CFGHOOKS_H @@ -43,17 +42,21 @@ struct cfg_hooks 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. It aborts when called - on abnormal edge. */ + newly created forwarder basic block is returned. The edge must + not be abnormal. */ basic_block (*redirect_edge_and_branch_force) (edge, basic_block); + /* Returns true if it is possible to remove the edge by redirecting it + to the destination of the other edge going from its source. */ + bool (*can_remove_branch_p) (const_edge); + /* 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); @@ -68,10 +71,10 @@ struct cfg_hooks /* Return true if the one of outgoing edges is already predicted by PREDICTOR. */ - bool (*predicted_by_p) (basic_block bb, enum br_predictor predictor); + bool (*predicted_by_p) (const_basic_block bb, enum br_predictor predictor); /* Return true when block A can be duplicated. */ - bool (*can_duplicate_block_p) (basic_block a); + bool (*can_duplicate_block_p) (const_basic_block a); /* Duplicate block A. */ basic_block (*duplicate_block) (basic_block a); @@ -90,7 +93,7 @@ struct cfg_hooks /* Say whether a block ends with a conditional branch. Switches and unconditional branches do not qualify. */ - bool (*block_ends_with_condjump_p) (basic_block); + bool (*block_ends_with_condjump_p) (const_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 @@ -108,12 +111,39 @@ struct cfg_hooks /* 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 *, edge, + unsigned, sbitmap, + edge, VEC (edge, heap) **, + int); + + /* 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 bool can_remove_branch_p (const_edge); +extern void remove_branch (edge); +extern void remove_edge (edge); extern edge split_block (basic_block, void *); extern edge split_block_after_labels (basic_block); extern bool move_block_after (basic_block, basic_block); @@ -128,14 +158,27 @@ extern edge make_forwarder_block (basic_block, bool (*)(edge), 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); +extern bool predicted_by_p (const_basic_block bb, enum br_predictor predictor); +extern bool can_duplicate_block_p (const_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 bool block_ends_with_condjump_p (const_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, + unsigned int ndupl, + sbitmap wont_exit, + edge orig, + VEC (edge, heap) **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; @@ -143,7 +186,7 @@ extern struct cfg_hooks rtl_cfg_hooks; extern struct cfg_hooks cfg_layout_rtl_cfg_hooks; /* Declarations. */ -extern int ir_type (void); +extern enum ir_type current_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);