cse.c (fold_rtx): Use swap_commutative_operands_p to determine whether to…

cse.c (fold_rtx): Use swap_commutative_operands_p to determine whether to reorder the operands of...


	* cse.c (fold_rtx): Use swap_commutative_operands_p to determine
	whether to reorder the operands of a commutative binary operator.

From-SVN: r69534

gcc/ChangeLog

 2003-07-17  Roger Sayle  <roger@eyesopen.com>
 
+	* cse.c (fold_rtx): Use swap_commutative_operands_p to determine
+	whether to reorder the operands of a commutative binary operator.
+
+2003-07-17  Roger Sayle  <roger@eyesopen.com>
+
 	* fold-const.c (const_binop): Avoid performing the FP operation at
 	compile-time, if either operand is NaN and we honor signaling NaNs,
 	or if we're dividing by zero and either flag_trapping_math is set

gcc/cse.c

@@ -3783,10 +3783,11 @@ fold_rtx (rtx x, rtx insn)
       || code == LTGT || code == UNEQ || code == ORDERED
       || code == UNORDERED)
     {
-      if (must_swap || (const_arg0
-			&& (const_arg1 == 0
-			    || (GET_CODE (const_arg0) == CONST_INT
-			        && GET_CODE (const_arg1) != CONST_INT))))
+      if (must_swap
+	  || swap_commutative_operands_p (const_arg0 ? const_arg0
+						     : XEXP (x, 0),
+					  const_arg1 ? const_arg1
+						     : XEXP (x, 1)))
 	{
 	  rtx tem = XEXP (x, 0);