moved old params files

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

src/ast/simplifier/bv_simplifier_params.h

@@ -0,0 +1,33 @@
+/*++
+Copyright (c) 2006 Microsoft Corporation
+
+Module Name:
+
+    bv_simplifier_params.h
+
+Abstract:
+
+    <abstract>
+
+Author:
+
+    Leonardo de Moura (leonardo) 2008-10-10.
+
+Revision History:
+
+--*/
+#ifndef _BV_SIMPLIFIER_PARAMS_H_
+#define _BV_SIMPLIFIER_PARAMS_H_
+
+struct bv_simplifier_params {
+    bool  m_hi_div0; //!< if true, uses the hardware interpretation for div0, mod0, ... if false, div0, mod0, ... are considered uninterpreted.
+    bool  m_bv2int_distribute; //!< if true allows downward propagation of bv2int.
+
+    bv_simplifier_params():
+        m_hi_div0(true),
+        m_bv2int_distribute(true) {
+    }
+};
+
+#endif /* _BV_SIMPLIFIER_PARAMS_H_ */
+