(distribute_notes, REG_DEAD case): When check to see

if insn uses register, also call find_regno_fusage.

From-SVN: r7683

gcc/combine.c

@@ -10573,7 +10573,8 @@ distribute_notes (notes, from_insn, i3, i2, elim_i2, elim_i1)
 		  int i;
 
 		  for (i = regno; i < endregno; i++)
-		    if (! refers_to_regno_p (i, i + 1, PATTERN (place), 0))
+		    if (! refers_to_regno_p (i, i + 1, PATTERN (place), 0)
+			&& ! find_regno_fusage (place, USE, i))
 		      {
 			rtx piece = gen_rtx (REG, reg_raw_mode[i], i);
 			rtx p;