(strlensi_unroll4, strlensi_unroll5): Use + not =& for

From-SVN: r12253

gcc/config/i386/i386.md

@@ -6857,7 +6857,7 @@
   [(set (match_operand:SI 0 "register_operand" "=r,r")
 		   (unspec:SI [(mem:BLK (match_operand:SI 3 "register_operand" "0,0"))
 			       (match_operand:SI 1 "immediate_operand" "i,i")
-			       (match_operand:SI 2 "register_operand" "=&q,&!r")] 0))
+			       (match_operand:SI 2 "register_operand" "+q,!r")] 0))
    (clobber (match_dup 2))]
   "(TARGET_USE_ANY_REG && optimize > 1)"
   "* return output_strlen_unroll (operands);")
@@ -6866,7 +6866,7 @@
   [(set (match_operand:SI 0 "register_operand" "=r")
 		   (unspec:SI [(mem:BLK (match_operand:SI 3 "register_operand" "0"))
 			       (match_operand:SI 1 "immediate_operand" "i")
-			       (match_operand:SI 2 "register_operand" "=&q")] 0))
+			       (match_operand:SI 2 "register_operand" "+q")] 0))
    (clobber (match_dup 2))]
   "(TARGET_USE_Q_REG && optimize > 1)"
   "* return output_strlen_unroll (operands);"