tree-if-conv.c (combine_blocks): Use make_single_succ_edge to keep profile consistent.

	* tree-if-conv.c (combine_blocks): Use make_single_succ_edge
	to keep profile consistent.

From-SVN: r249870

gcc/ChangeLog

 2017-07-01  Jan Hubicka  <hubicka@ucw.cz>
 
+	* tree-if-conv.c (combine_blocks): Use make_single_succ_edge
+	to keep profile consistent.
+
+2017-07-01  Jan Hubicka  <hubicka@ucw.cz>
+
 	* cfgrtl.c (rtl_flow_call_edges_add): Update profile.
 	* tree-cfg.c (gimple_flow_call_edges_add): Likewise.
 	* profile-count.h (max_safe_multiplier): Make unsigned.

gcc/tree-if-conv.c

@@ -2403,7 +2403,7 @@ combine_blocks (struct loop *loop)
       if (exit_bb != loop->header)
 	{
 	  /* Connect this node to loop header.  */
-	  make_edge (loop->header, exit_bb, EDGE_FALLTHRU);
+	  make_single_succ_edge (loop->header, exit_bb, EDGE_FALLTHRU);
 	  set_immediate_dominator (CDI_DOMINATORS, exit_bb, loop->header);
 	}