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 package jdk.vm.ci.code;
  24 
  25 import java.util.*;
  26 
  27 /**
  28  * A collection of register attributes. The specific attribute values for a register may be local to
  29  * a compilation context. For example, a {@link RegisterConfig} in use during a compilation will
  30  * determine which registers are callee saved.
  31  */
  32 public class RegisterAttributes {
  33 
  34     private final boolean callerSave;
  35     private final boolean calleeSave;
  36     private final boolean allocatable;
  37 
  38     public RegisterAttributes(boolean isCallerSave, boolean isCalleeSave, boolean isAllocatable) {
  39         this.callerSave = isCallerSave;
  40         this.calleeSave = isCalleeSave;
  41         this.allocatable = isAllocatable;
  42     }
  43 
  44     public static final RegisterAttributes NONE = new RegisterAttributes(false, false, false);
  45 

   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 package jdk.vm.ci.code;
  24 
  25 import java.util.Arrays;
  26 
  27 /**
  28  * A collection of register attributes. The specific attribute values for a register may be local to
  29  * a compilation context. For example, a {@link RegisterConfig} in use during a compilation will
  30  * determine which registers are callee saved.
  31  */
  32 public class RegisterAttributes {
  33 
  34     private final boolean callerSave;
  35     private final boolean calleeSave;
  36     private final boolean allocatable;
  37 
  38     public RegisterAttributes(boolean isCallerSave, boolean isCalleeSave, boolean isAllocatable) {
  39         this.callerSave = isCallerSave;
  40         this.calleeSave = isCalleeSave;
  41         this.allocatable = isAllocatable;
  42     }
  43 
  44     public static final RegisterAttributes NONE = new RegisterAttributes(false, false, false);
  45