rtl.h (cleanup_barriers): Declare.

	* rtl.h (cleanup_barriers): Declare.
	* jump.c (cleanup_barriers): New function.
	* toplev.c (rest_of_compilation): Call cleanup_barriers
	before loop optimizer and after bb_reorder.

	* flow.c (back_edge_of_syntactic_loop_p): New.
	(split_edge): Use it.

From-SVN: r44409

1 files changed, 1 insertions, 0 deletions

diff --git a/gcc/rtl.h b/gcc/rtl.h
index 1fbc9da..7cacfab 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -1286,6 +1286,7 @@ extern enum rtx_code swap_condition	PARAMS ((enum rtx_code));
 extern enum rtx_code unsigned_condition	PARAMS ((enum rtx_code));
 extern enum rtx_code signed_condition	PARAMS ((enum rtx_code));
 extern void mark_jump_label		PARAMS ((rtx, rtx, int));
+extern void cleanup_barriers		PARAMS ((void));
 
 /* In jump.c */
 extern rtx squeeze_notes		PARAMS ((rtx, rtx));