(umulsidi3+1): Add variant which accepts constants.

From-SVN: r3353

gcc/config/i960/i960.md

@@ -1494,6 +1494,19 @@
 }"
   [(set_attr "type" "mult")])
 
+(define_insn ""
+  [(set (match_operand:DI 0 "register_operand" "=d")
+	(mult:DI (zero_extend:DI (match_operand:SI 1 "register_operand" "%d"))
+		 (match_operand:SI 2 "literal" "I"))))]
+  ""
+  "*
+{
+  if (i960_bypass (insn, operands[1], operands[2], 0))
+    return \"emul	%2,%1,%0\";
+  return \"emul	%1,%2,%0\";
+}"
+  [(set_attr "type" "mult")])
+
 ;; This goes after the move/add/sub/mul instructions  
 ;; because those instructions are better when they apply.