Author: ebotcazou
Date: Sun Sep  2 10:37:49 2012
New Revision: 190860

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190860
Log:
    PR rtl-optimization/54369
    * config/mips/mips.c (mips_reorg): Invoke cleanup_barriers before
    calling dbr_schedule.
    * config/sparc/sparc.c (sparc_reorg): Likewise.

Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/config/mips/mips.c
    branches/gcc-4_6-branch/gcc/config/sparc/sparc.c
---
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -15083,7 +15083,10 @@ mips_reorg (void)
     }
 
   if (optimize > 0 && flag_delayed_branch)
-    dbr_schedule (get_insns ());
+    {
+      cleanup_barriers ();
+      dbr_schedule (get_insns ());
+    }
   mips_reorg_process_insns ();
   if (!TARGET_MIPS16
       && TARGET_EXPLICIT_RELOCS
--- a/gcc/config/sparc/sparc.c
+++ b/gcc/config/sparc/sparc.c
@@ -9452,7 +9452,10 @@ sparc_reorg (void)
   /* We need to have the (essentially) final form of the insn stream in order
      to properly detect the various hazards.  Run delay slot scheduling.  */
   if (optimize > 0 && flag_delayed_branch)
-    dbr_schedule (get_insns ());
+    {
+      cleanup_barriers ();
+      dbr_schedule (get_insns ());
+    }
 
   /* Now look for specific patterns in the insn stream.  */
   for (insn = get_insns (); insn; insn = next)