* cfgcleanup.c (try_simplify_condjump): Don't remove line

	notes to avoid unreachable code warnings.
	* toplev.c (backend_init): Don't emit line notes for
	unreachable code warnings.

	* combine.c (distribute_notes): Don't distribute a
	REG_VTABLE_REF note.
	* final.c (final_scan_insn): Don't handle it.
	* rtl.c (reg_note_name): Remove it.
	* rtl.h (enum reg_node): Dito.

	* emit-rtl.c (force_line_numbers, restore_line_number_status):
	Remove.
	* rtl.h (force_line_numbers, restore_line_number_status):
	Remove prototypes.

	* stmt.c (using_eh_for_cleanups_p, using_eh_for_cleanups): Move...
	* tree-eh.c (using_eh_for_cleanups_p): ...here.  Make static.
	(using_eh_for_cleanups): Also moved here.

	* expr.c (expand_expr_real_1) <CASE_LABEL_EXPR>: Die if we see one.
	<SWITCH_EXPR>: Die if we have a non-NULL SWITCH_BODY.  Update calls
	to expand_start_case and add_case_node.
	* stmt.c (struct nesting): Cleanup unused fields condition_code,
	last_unconditional_cleanup, nominal_type, printname, and
	line_number_status.
	(struct fixup_goto): Remove.
	(struct stmt_status): Remove x_goto_fixup_chain field.
	(goto_fixup_chain): Remove.
	(strip_default_case_nodes, group_case_nodes, emit_jump_if_reachable,
	pushcase, pushcase_range): Remove.
	(expand_start_bindings_and_block): Don't set unused fields in
	the nesting stack.
	(expand_start_case, add_case_node): Cleanup unused formal arguments.
	(expand_end_case_type): Don't simplify the case-list.  Use emit_jump
	instead of emit_jump_if_reachable.
	(emit_case_nodes): Likewise.
	* tree-cfg.c (group_case_labels, cleanup_dead_labels): No longer
	static.
	(update_eh_label): Work around left-over exception handing regions.
	* tree-flow.h (group_case_labels, cleanup_dead_labels): Add protos.
	* tree-optimize.c (execute_cleanup_cfg_post_optimizing): New function.
	(pass_cleanup_cfg_post_optimizing): New pass.
	(init_tree_optimization_passes): Run the new pass after all
	optimizations.
	* tree.h (pushcase, pushcase_range): Remove prototypes.
	(expand_start_case, add_case_node): Update prototypes.

cp/
	* cp-tree.h (struct lang_type): Don't have three GTY options on a
	single bit GTY desc.

java/
	* parse.y (java_complete_expand_methods, java_expand_classes): Don't
	abuse restore_line_number_status.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@84849 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 0 insertions, 22 deletions

diff --git a/gcc/cfgcleanup.c b/gcc/cfgcleanup.c
index f167800e21b..f704d315a19 100644
--- a/gcc/cfgcleanup.c
+++ b/gcc/cfgcleanup.c
@@ -122,8 +122,6 @@ try_simplify_condjump (basic_block cbranch_block)
   basic_block jump_block, jump_dest_block, cbranch_dest_block;
   edge cbranch_jump_edge, cbranch_fallthru_edge;
   rtx cbranch_insn;
-  rtx insn, next;
-  rtx end;
 
   /* Verify that there are exactly two successors.  */
   if (!cbranch_block->succ
@@ -186,26 +184,6 @@ try_simplify_condjump (basic_block cbranch_block)
   cbranch_fallthru_edge->flags &= ~EDGE_FALLTHRU;
   update_br_prob_note (cbranch_block);
 
-  end = BB_END (jump_block);
-  /* Deleting a block may produce unreachable code warning even when we are
-     not deleting anything live.  Suppress it by moving all the line number
-     notes out of the block.  */
-  for (insn = BB_HEAD (jump_block); insn != NEXT_INSN (BB_END (jump_block));
-       insn = next)
-    {
-      next = NEXT_INSN (insn);
-      if (NOTE_P (insn) && NOTE_LINE_NUMBER (insn) > 0)
-	{
-	  if (insn == BB_END (jump_block))
-	    {
-	      BB_END (jump_block) = PREV_INSN (insn);
-	      if (insn == end)
-	        break;
-	    }
-	  reorder_insns_nobb (insn, insn, end);
-	  end = insn;
-	}
-    }
   /* Delete the block with the unconditional jump, and clean up the mess.  */
   delete_basic_block (jump_block);
   tidy_fallthru_edge (cbranch_jump_edge);