* tree-cfgcleanup.c (cfgcleanup_altered_bbs): New global variable.

	(remove_fallthru_edge): Use remove_edge_and_dominated_blocks.
	(cleanup_control_expr_graph): Do not invalidate dominance info.
	Record altered blocks.
	(cleanup_control_flow, cleanup_forwarder_blocks): Removed.
	(cleanup_control_flow_bb, split_bbs_on_noreturn_calls,
	cleanup_tree_cfg_bb): New functions.
	(remove_forwarder_block): Do not maintain the worklist of blocks.
	Record altered blocks.
	(cleanup_tree_cfg_1): Iterate over cfgcleanup_altered_bbs,
	not over whole cfg.
	(cleanup_tree_cfg): Do not iterate cleanup_tree_cfg_1.  Only call
	delete_unreachable_blocks if dominators are not available.
	* tree-inline.c (optimize_inline_calls): Free dominance information
	earlier.
	* tree-flow.h (remove_edge_and_dominated_blocks,
	cfgcleanup_altered_bbs): Altered.
	* tree-cfg.c (replace_uses_by, tree_merge_blocks): Record altered
	blocks.
	(get_all_dominated_blocks, remove_edge_and_dominated_blocks): New
	functions.
	(tree_purge_dead_eh_edges): Use remove_edge_and_dominated_blocks,
	do not invalidate dominators.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@124203 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 2 insertions, 0 deletions

diff --git a/gcc/tree-flow.h b/gcc/tree-flow.h
index 4d9b36e4ab8..b7f6585b907 100644
--- a/gcc/tree-flow.h
+++ b/gcc/tree-flow.h
@@ -778,8 +778,10 @@ extern void start_recording_case_labels (void);
 extern void end_recording_case_labels (void);
 extern basic_block move_sese_region_to_fn (struct function *, basic_block,
 				           basic_block);
+void remove_edge_and_dominated_blocks (edge);
 
 /* In tree-cfgcleanup.c  */
+extern bitmap cfgcleanup_altered_bbs;
 extern bool cleanup_tree_cfg (void);
 extern bool cleanup_tree_cfg_loop (void);