+
+ /* Make the edge non-fallthru. */
+ basic_block (*force_nonfallthru) (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) (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
+ 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 *, 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);
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