--- gcc/sched-deps.c.jj	2010-11-01 09:07:23.000000000 +0100
+++ gcc/sched-deps.c	2010-11-23 15:59:44.000000000 +0100
@@ -2484,7 +2484,7 @@ sched_analyze_2 (struct deps_desc *deps,
 
 	    for (u = deps->last_pending_memory_flush; u; u = XEXP (u, 1))
 	      {
-		if (! JUMP_P (XEXP (u, 0)))
+		if (REG_NOTE_KIND (u) != REG_DEP_ANTI)
 		  add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
 		else if (deps_may_trap_p (x))
 		  {
@@ -2796,7 +2796,7 @@ sched_analyze_insn (struct deps_desc *de
 			   REG_DEP_ANTI);
 
       for (u = deps->last_pending_memory_flush; u; u = XEXP (u, 1))
-	if (! JUMP_P (XEXP (u, 0))
+	if (REG_NOTE_KIND (u) != REG_DEP_ANTI
 	    || !sel_sched_p ())
 	  add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
 
@@ -3242,8 +3242,12 @@ deps_analyze_insn (struct deps_desc *dep
           if (deps->pending_flush_length++ > MAX_PENDING_LIST_LENGTH)
             flush_pending_lists (deps, insn, true, true);
           else
-            deps->last_pending_memory_flush
-              = alloc_INSN_LIST (insn, deps->last_pending_memory_flush);
+	    {
+	      deps->last_pending_memory_flush
+		= alloc_INSN_LIST (insn, deps->last_pending_memory_flush);
+	      PUT_REG_NOTE_KIND (deps->last_pending_memory_flush,
+				 REG_DEP_ANTI);
+	    }
         }
 
       sched_analyze_insn (deps, PATTERN (insn), insn);
--- gcc/sched-rgn.c.jj	2010-11-01 09:07:24.000000000 +0100
+++ gcc/sched-rgn.c	2010-11-23 16:00:29.000000000 +0100
@@ -2574,7 +2574,10 @@ concat_INSN_LIST (rtx copy, rtx old)
 {
   rtx new_rtx = old;
   for (; copy ; copy = XEXP (copy, 1))
-    new_rtx = alloc_INSN_LIST (XEXP (copy, 0), new_rtx);
+    {
+      new_rtx = alloc_INSN_LIST (XEXP (copy, 0), new_rtx);
+      PUT_REG_NOTE_KIND (new_rtx, REG_NOTE_KIND (copy));
+    }
   return new_rtx;
 }
 
--- gcc/testsuite/gcc.dg/pr46614.c.jj	2010-11-23 16:06:07.000000000 +0100
+++ gcc/testsuite/gcc.dg/pr46614.c	2010-11-23 16:05:44.000000000 +0100
@@ -0,0 +1,56 @@
+/* PR rtl-optimization/46614 */
+/* { dg-do run } */
+/* { dg-options "-O -fno-rename-registers -fsched2-use-superblocks -fschedule-insns2 -funroll-loops" } */
+
+extern void abort (void);
+
+struct S
+{
+  unsigned char a;
+  unsigned char b;
+  unsigned int c;
+  unsigned int e;
+  unsigned char f;
+  unsigned int g;
+};
+
+void bar (struct S *x)
+{
+  int i;
+  struct S *p = x;
+  struct S r[16];
+  unsigned j;
+  for (i = 0; i < 16; i++)
+    {
+      r[i].c = p->b + p->c;
+      j = p->c + p->f;
+      r[i].a = j + p->b;
+      r[i].f = p->f + p->e;
+      r[i].g = p->b + p->c;
+    }
+  for (i = 0; i < 16; i++)
+    {
+      if (r[i].c != x[i].b + x[i].c
+	  || r[i].a != x[i].c + x[i].f + x[i].b
+	  || r[i].f != x[i].f + x[i].e
+	  || r[i].g != x[i].b + x[i].c)
+	abort ();
+    }
+  for (i = 0; i < 16; i++)
+    {
+      r[i].b = p->c;
+      if (r[i].b != x[i].c)
+	abort ();
+    }
+}
+
+int
+main ()
+{
+  int i;
+  struct S x[16];
+  for (i = 0; i < 16; i++)
+    x[i].b = x[i].c = x[i].e = x[i].f = 5;
+  bar (x);
+  return 0;
+}