PR middle-end/32018

	* tree-ssa-threadupdate.c (thread_through_loop_header): Use
	set_loop_copy.
	(thread_through_all_blocks): Call initialize_original_copy_tables
	and free_original_copy_tables.
	* cfgloopmanip.c (duplicate_loop, duplicate_loop_to_header_edge):
	Use set_loop_copy.
	* tree-cfg.c (tree_duplicate_sese_region): Ditto.
	* cfghooks.c (duplicate_block): Use get_loop_copy.
	* cfg.c: Include cfgloop.h.
	(loop_copy): New hash table.
	(initialize_original_copy_tables): Initialize loop_copy table.
	(free_original_copy_tables): Free loop_copy table.
	(copy_original_table_clear, copy_original_table_set,
	set_loop_copy, get_loop_copy): New functions.
	(set_bb_original, set_bb_copy): Use copy_original_table_set.
	* cfgloop.h (struct loop): Remove copy field.
	* Makefile.in (cfg.o): Add CFGLOOP_H dependency.
	* basic-block.h (set_loop_copy, get_loop_copy): Declare.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@125024 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 3 insertions, 0 deletions

diff --git a/gcc/basic-block.h b/gcc/basic-block.h
index a3d4dc84b69..ce0aba06ade 100644
--- a/gcc/basic-block.h
+++ b/gcc/basic-block.h
@@ -988,6 +988,9 @@ extern void set_bb_original (basic_block, basic_block);
 extern basic_block get_bb_original (basic_block);
 extern void set_bb_copy (basic_block, basic_block);
 extern basic_block get_bb_copy (basic_block);
+void set_loop_copy (struct loop *, struct loop *);
+struct loop *get_loop_copy (struct loop *);
+
 
 extern rtx insert_insn_end_bb_new (rtx, basic_block);