Index: i386.c
===================================================================
--- i386.c	(revision 190932)
+++ i386.c	(working copy)
@@ -24314,6 +24314,49 @@ ix86_sched_reorder(FILE *dump, int sched_verbose,
   return issue_rate;
 }
 
+/* Before reload, adjust priority of moves to/from likely spilled
+   hard registers.  This reduces hard register life times and consequently
+   the chance of spill failures for enclosed instructions.  */
+static int
+ix86_adjust_priority (rtx insn, int priority)
+{
+  rtx set;
+
+  if (reload_completed)
+    return priority;
+
+  if (!NONJUMP_INSN_P (insn))
+    return priority;
+
+  set = single_set (insn);
+
+  if (set)
+    {
+      rtx tmp;
+
+      /* Set priority of moves from likely spilled hard registers to maximum,
+	 to schedule them as soon as possible.  These are moves from
+	 function argument registers at the top of the function entry.  */
+      tmp = SET_SRC (set);
+      if (REG_P (tmp)
+	  && HARD_REGISTER_P (tmp)
+	  && ! TEST_HARD_REG_BIT (fixed_reg_set, REGNO (tmp))
+	  && targetm.class_likely_spilled_p (REGNO_REG_CLASS (REGNO (tmp))))
+	return current_sched_info->sched_max_insns_priority;
+
+      /* Set priority of moves to likely spilled hard registers to minimum,
+	 to schedule them as late as possible.  These are moves to
+	 function argument registers before function call.  */
+      tmp = SET_DEST (set);
+      if (REG_P (tmp)
+	  && HARD_REGISTER_P (tmp)
+	  && ! TEST_HARD_REG_BIT (fixed_reg_set, REGNO (tmp))
+	  && targetm.class_likely_spilled_p (REGNO_REG_CLASS (REGNO (tmp))))
+	return 0;
+    }
+
+  return priority;
+}
 
 
 /* Model decoder of Core 2/i7.
@@ -39608,6 +39651,8 @@ ix86_enum_va_list (int idx, const char **pname, tr
 #define TARGET_SCHED_REASSOCIATION_WIDTH ix86_reassociation_width
 #undef TARGET_SCHED_REORDER
 #define TARGET_SCHED_REORDER ix86_sched_reorder
+#undef TARGET_SCHED_ADJUST_PRIORITY
+#define TARGET_SCHED_ADJUST_PRIORITY ix86_adjust_priority
 
 /* The size of the dispatch window is the total number of bytes of
    object code allowed in a window.  */