[ARC] Make mulsi for A700 pattern commutative.

gcc/
2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (mulsi3_700): Make it commutative.

From-SVN: r248776

gcc/ChangeLog

+2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>
+
+	* config/arc/arc.md (mulsi3_700): Make it commutative.
+
 2017-06-01  Jose E. Marchesi  <jose.marchesi@oracle.com>
 
 	* config/sparc/sparc.md (*zero_extendsidi2_insn_sp64): Set insn

gcc/config/arc/arc.md

@@ -2127,7 +2127,7 @@
 ; like MPY or MPYU.
 (define_insn "mulsi3_700"
  [(set (match_operand:SI 0 "mpy_dest_reg_operand"        "=Rcr,r,r,Rcr,r")
-	(mult:SI (match_operand:SI 1 "register_operand"  " 0,c,0,0,c")
+	(mult:SI (match_operand:SI 1 "register_operand"  "%0,c,0,0,c")
 		 (match_operand:SI 2 "nonmemory_operand" "cL,cL,I,Cal,Cal")))]
  "TARGET_ARC700_MPY"
   "mpyu%? %0,%1,%2"