(movdf): Don't need earlyclobber when a register is copied to itself.

From-SVN: r6170

gcc/config/m68k/m68k.md

@@ -1121,14 +1121,14 @@
 }")
 
 (define_insn "movdf"
-  [(set (match_operand:DF 0 "general_operand" "=rm,rf,&rof<>,y,rm,x,!x,!rm")
-	(match_operand:DF 1 "general_operand" "rf,m,rofE<>,rmE,y,xH,rm,x"))]
+  [(set (match_operand:DF 0 "general_operand" "=rm,rf,rf,&rof<>,y,rm,x,!x,!rm")
+	(match_operand:DF 1 "general_operand" "rf,m,0,rofE<>,rmE,y,xH,rm,x"))]
 ;  [(set (match_operand:DF 0 "general_operand" "=rm,&rf,&rof<>")
 ;	(match_operand:DF 1 "general_operand" "rf,m,rofF<>"))]
   ""
   "*
 {
-  if (which_alternative == 6)
+  if (which_alternative == 7)
     return \"fpmove%.d %x1,fpa0\;fpmove%.d fpa0,%x0\";
   if (FPA_REG_P (operands[0]))
     {