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diff agent/src/share/classes/sun/jvm/hotspot/compiler/OopMapValue.java @ 113:ba764ed4b6f2

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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
author coleenp
date Sun, 13 Apr 2008 17:43:42 -0400
parents a61af66fc99e
children d1605aabd0a1
line wrap: on
line diff
--- a/agent/src/share/classes/sun/jvm/hotspot/compiler/OopMapValue.java	Fri Apr 11 09:56:35 2008 -0400
+++ b/agent/src/share/classes/sun/jvm/hotspot/compiler/OopMapValue.java	Sun Apr 13 17:43:42 2008 -0400
@@ -50,7 +50,7 @@
   static int UNUSED_VALUE;
   static int OOP_VALUE;
   static int VALUE_VALUE;
-  static int DEAD_VALUE;
+  static int NARROWOOP_VALUE;
   static int CALLEE_SAVED_VALUE;
   static int DERIVED_OOP_VALUE;
 
@@ -74,7 +74,7 @@
     UNUSED_VALUE           = db.lookupIntConstant("OopMapValue::unused_value").intValue();
     OOP_VALUE              = db.lookupIntConstant("OopMapValue::oop_value").intValue();
     VALUE_VALUE            = db.lookupIntConstant("OopMapValue::value_value").intValue();
-    DEAD_VALUE             = db.lookupIntConstant("OopMapValue::dead_value").intValue();
+    NARROWOOP_VALUE        = db.lookupIntConstant("OopMapValue::narrowoop_value").intValue();
     CALLEE_SAVED_VALUE     = db.lookupIntConstant("OopMapValue::callee_saved_value").intValue();
     DERIVED_OOP_VALUE      = db.lookupIntConstant("OopMapValue::derived_oop_value").intValue();
   }
@@ -83,7 +83,7 @@
     public static final OopTypes UNUSED_VALUE       = new OopTypes() { int getValue() { return OopMapValue.UNUSED_VALUE;       }};
     public static final OopTypes OOP_VALUE          = new OopTypes() { int getValue() { return OopMapValue.OOP_VALUE;          }};
     public static final OopTypes VALUE_VALUE        = new OopTypes() { int getValue() { return OopMapValue.VALUE_VALUE;        }};
-    public static final OopTypes DEAD_VALUE         = new OopTypes() { int getValue() { return OopMapValue.DEAD_VALUE;         }};
+    public static final OopTypes NARROWOOP_VALUE    = new OopTypes() { int getValue() { return OopMapValue.NARROWOOP_VALUE;         }};
     public static final OopTypes CALLEE_SAVED_VALUE = new OopTypes() { int getValue() { return OopMapValue.CALLEE_SAVED_VALUE; }};
     public static final OopTypes DERIVED_OOP_VALUE  = new OopTypes() { int getValue() { return OopMapValue.DERIVED_OOP_VALUE;  }};
 
@@ -106,7 +106,7 @@
   // Querying
   public boolean isOop()         { return (getValue() & TYPE_MASK_IN_PLACE) == OOP_VALUE;          }
   public boolean isValue()       { return (getValue() & TYPE_MASK_IN_PLACE) == VALUE_VALUE;        }
-  public boolean isDead()        { return (getValue() & TYPE_MASK_IN_PLACE) == DEAD_VALUE;         }
+  public boolean isNarrowOop()   { return (getValue() & TYPE_MASK_IN_PLACE) == NARROWOOP_VALUE;    }
   public boolean isCalleeSaved() { return (getValue() & TYPE_MASK_IN_PLACE) == CALLEE_SAVED_VALUE; }
   public boolean isDerivedOop()  { return (getValue() & TYPE_MASK_IN_PLACE) == DERIVED_OOP_VALUE;  }
 
@@ -118,7 +118,7 @@
          if (which == UNUSED_VALUE) return OopTypes.UNUSED_VALUE;
     else if (which == OOP_VALUE)    return OopTypes.OOP_VALUE;
     else if (which == VALUE_VALUE)  return OopTypes.VALUE_VALUE;
-    else if (which == DEAD_VALUE)   return OopTypes.DEAD_VALUE;
+    else if (which == NARROWOOP_VALUE)   return OopTypes.NARROWOOP_VALUE;
     else if (which == CALLEE_SAVED_VALUE) return OopTypes.CALLEE_SAVED_VALUE;
     else if (which == DERIVED_OOP_VALUE)  return OopTypes.DERIVED_OOP_VALUE;
     else throw new InternalError("unknown which " + which + " (TYPE_MASK_IN_PLACE = " + TYPE_MASK_IN_PLACE + ")");