* sched-ebb.c (schedule_ebbs): Honor the BB_DISABLE_SCHEDULE flag.

From-SVN: r171842

gcc/ChangeLog

@@ -13,6 +13,8 @@
 	* haifa-sched.c (queue_insn): New arg REASON.  All callers
 	changed.  Print it in debugging output.
 
+	* sched-ebb.c (schedule_ebbs): Honor the BB_DISABLE_SCHEDULE flag.
+
 2011-04-01  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 
 	* config/spu/t-spu-elf (dp-bit.c): Use > instead of >>.

gcc/sched-ebb.c

 /* Instruction scheduling pass.
-   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com) Enhanced by,
    and currently maintained by, Jim Wilson (wilson@cygnus.com)
@@ -579,6 +579,9 @@ schedule_ebbs (void)
     {
       rtx head = BB_HEAD (bb);
 
+      if (bb->flags & BB_DISABLE_SCHEDULE)
+	continue;
+
       for (;;)
 	{
 	  edge e;
@@ -591,6 +594,8 @@ schedule_ebbs (void)
 	    break;
 	  if (e->probability <= probability_cutoff)
 	    break;
+	  if (e->dest->flags & BB_DISABLE_SCHEDULE)
+ 	    break;
 	  bb = bb->next_bb;
 	}