/* Hooks for cfg representation specific functions.
- Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
Contributed by Sebastian Pop <s.pop@laposte.net>
This file is part of GCC.
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) (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);
/* 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);
+ 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. */
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 (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);
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,
+ edge orig,
+ VEC (edge, heap) **to_remove,
int flags);
extern void lv_flush_pending_stmts (edge);