1 /*

     2  * Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    24 

    25 #ifndef SHARE_VM_C1_C1_VALUESET_HPP

    26 #define SHARE_VM_C1_C1_VALUESET_HPP

    27 

    28 #include "c1/c1_Instruction.hpp"

    29 #include "memory/allocation.hpp"

    30 #include "utilities/bitMap.hpp"

    31 

    32 // A ValueSet is a simple abstraction on top of a BitMap representing

    33 // a set of Instructions. Currently it assumes that the number of

    34 // instructions is fixed during its lifetime; should make it

    35 // automatically resizable.

    36 

    37 class ValueSet: public CompilationResourceObj {

    38  private:

    39   ResourceBitMap _map;

    40 

    41  public:

    42   ValueSet();

    43 

    44   ValueSet* copy();

    45   bool contains(Value x);

    46   void put     (Value x);

    47   void remove  (Value x);

    48   bool set_intersect(ValueSet* other);

    49   void set_union(ValueSet* other);

    50   void clear   ();

    51   void set_from(ValueSet* other);

    52   bool equals  (ValueSet* other);

    53 };

    54 

    55 #endif // SHARE_VM_C1_C1_VALUESET_HPP