jdk8-mips64-public/hotspot: src/share/vm/c1/c1

     1 /*

     2  * Copyright 2001-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

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

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

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

    28 // automatically resizable.

    30 class ValueSet: public CompilationResourceObj {

    31  private:

    32   BitMap _map;

    34  public:

    35   ValueSet();

    37   ValueSet* copy();

    38   bool contains(Value x);

    39   void put     (Value x);

    40   void remove  (Value x);

    41   bool set_intersect(ValueSet* other);

    42   void set_union(ValueSet* other);

    43   void clear   ();

    44   void set_from(ValueSet* other);

    45   bool equals  (ValueSet* other);

    46 };

    48 inline ValueSet::ValueSet() : _map(Instruction::number_of_instructions()) {

    49   _map.clear();

    50 }

    53 inline ValueSet* ValueSet::copy() {

    54   ValueSet* res = new ValueSet();

    55   res->_map.set_from(_map);

    56   return res;

    57 }

    60 inline bool ValueSet::contains(Value x) {

    61   return _map.at(x->id());

    62 }

    65 inline void ValueSet::put(Value x) {

    66   _map.set_bit(x->id());

    67 }

    70 inline void ValueSet::remove(Value x) {

    71   _map.clear_bit(x->id());

    72 }

    75 inline bool ValueSet::set_intersect(ValueSet* other) {

    76   return _map.set_intersection_with_result(other->_map);

    77 }

    80 inline void ValueSet::set_union(ValueSet* other) {

    81   _map.set_union(other->_map);

    82 }

    85 inline void ValueSet::clear() {

    86   _map.clear();

    87 }

    89 inline void ValueSet::set_from(ValueSet* other) {

    90   _map.set_from(other->_map);

    91 }

    93 inline bool ValueSet::equals(ValueSet* other) {

    94   return _map.is_same(other->_map);

    95 }

src/share/vm/c1/c1_ValueSet.hpp@a61af66fc99e