re PR tree-optimization/65337 (LTO bootstrap failure with Ada enabled)

	PR tree-optimization/65337
	* tree-ssa-pre.c (eliminate): Also clean up abnormal edges if need be.

From-SVN: r231882

gcc/ChangeLog

+2015-12-21  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR tree-optimization/65337
+	* tree-ssa-pre.c (eliminate): Also clean up abnormal edges if need be.
+
 2015-12-21  Dominik Vogt  <vogt@linux.vnet.ibm.com>
 
 	* config/s390/s390.c (s390_emit_prologue): Fix base reg condition.
@@ -77,8 +82,9 @@
 
 2015-12-19  Jan Hubicka  <hubicka@ucw.cz>
 
-	PR middle-end/65337
+	PR tree-optimization/65337
 	* tree-ssa-dce.c (bb_postorder): New static var.
+	(mark_stmt_necessary): Add guard for setting bb_contains_live_stmts.
 	(forward_edge_to_pdom): Remove.
 	(remove_dead_stmt): Instead of redirecting edges only keep an edge
 	on a path to nearest live BB.

gcc/tree-ssa-pre.c

@@ -4499,6 +4499,8 @@ eliminate (bool do_pre)
 	  unlink_stmt_vdef (stmt);
 	  if (gsi_remove (&gsi, true))
 	    bitmap_set_bit (need_eh_cleanup, bb->index);
+	  if (is_gimple_call (stmt) && stmt_can_make_abnormal_goto (stmt))
+	    bitmap_set_bit (need_ab_cleanup, bb->index);
 	  release_defs (stmt);
 	}