basic-block.h (flow_delete_block_noexpunge): Declare.

	* basic-block.h (flow_delete_block_noexpunge): Declare.
	(expunge_block_nocompact): Declare.
	* cfg.c (expunge_block_nocompact): Split out from ...
	(expunge_block): ... here.
	* cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels.
	(flow_delete_block_noexpunge): Split out from ...
	(flow_delete_block): ... here.
	* cfgcleanup.c (delete_unreachable_blocks): Compact while
	removing dead blocks.
	* except.c (exception_handler_labels): Remove.
	(exception_handler_label_map): New.
	(struct eh_region): Add aka member.
	(mark_ehl_map_entry, mark_ehl_map, free_region): New.
	(ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New.
	(for_each_eh_label, for_each_eh_label_1): New.
	(init_eh): Register exception_handler_label_map.
	(free_eh_status): Use free_region.
	(find_exception_handler_labels): Use the map, not the list.
	(remove_exception_handler_label): Likewise.
	(maybe_remove_eh_handler): Likewise.
	(remove_eh_handler): Use the region aka bitmap.
	* except.h (exception_handler_labels): Remove.
	(for_each_eh_label): Declare.
	* jump.c (rebuild_jump_labels): Don't check exception_handler_labels.
	* loop.c (invalidate_loops_containing_label): New.
	(find_and_verify_loops): Use it.  Use for_each_eh_label.
	* sched-rgn.c (is_cfg_nonregular): Use
	current_function_has_exception_handlers.

From-SVN: r52100

1 files changed, 0 insertions, 7 deletions

diff --git a/gcc/jump.c b/gcc/jump.c
index a04a4f5..f32b831 100644
--- a/gcc/jump.c
+++ b/gcc/jump.c
@@ -91,13 +91,6 @@ rebuild_jump_labels (f)
   for (insn = forced_labels; insn; insn = XEXP (insn, 1))
     if (GET_CODE (XEXP (insn, 0)) == CODE_LABEL)
       LABEL_NUSES (XEXP (insn, 0))++;
-
-  /* Keep track of labels used for marking handlers for exception
-     regions; they cannot usually be deleted.  */
-
-  for (insn = exception_handler_labels; insn; insn = XEXP (insn, 1))
-    if (GET_CODE (XEXP (insn, 0)) == CODE_LABEL)
-      LABEL_NUSES (XEXP (insn, 0))++;
 }
 
 /* Some old code expects exactly one BARRIER as the NEXT_INSN of a