Revert this change. Gavin's patch to operand_equal_p is a better fix.

         * fold-const.c (fold_range_test): Do not try to fold the range
         test if the rhs or lhs has side effects.

From-SVN: r29526

gcc/ChangeLog

@@ -24,6 +24,10 @@ Mon Sep 20 14:43:37 1999  Nick Clifton  <nickc@cygnus.com>
 
 Mon Sep 20 05:41:36 1999  Jeffrey A Law  (law@cygnus.com)
 
+	Revert this change.  Gavin's patch to operand_equal_p is a better fix.
+	 * fold-const.c (fold_range_test): Do not try to fold the range
+	 test if the rhs or lhs has side effects.
+
 	* basic-block.h (compute_flow_dominators): Declare.
 
 	* gcse.c (alloc_code_hoist_mem): New function.

gcc/fold-const.c

@@ -3571,10 +3571,6 @@ fold_range_test (exp)
   tree rhs = make_range (TREE_OPERAND (exp, 1), &in1_p, &low1, &high1);
   tree tem;
 
-  /* Fail if anything is volatile.  */
-  if (TREE_SIDE_EFFECTS (lhs) || TREE_SIDE_EFFECTS (rhs))
-    return 0;
-
   /* If this is an OR operation, invert both sides; we will invert
      again at the end.  */
   if (or_op)