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diff src/share/vm/classfile/javaClasses.hpp @ 165:437d03ea40b1

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6703888: Compressed Oops: use the 32-bits gap after klass in a object Summary: Use the gap also for a narrow oop field and a boxing object value. Reviewed-by: coleenp, never
author kvn
date Wed, 21 May 2008 16:31:35 -0700
parents 60b728ec77c1
children d1605aabd0a1
line wrap: on
line diff
--- a/src/share/vm/classfile/javaClasses.hpp	Wed May 21 13:46:23 2008 -0700
+++ b/src/share/vm/classfile/javaClasses.hpp	Wed May 21 16:31:35 2008 -0700
@@ -653,6 +653,7 @@
    hc_value_offset = 0
   };
   static int value_offset;
+  static int long_value_offset;
 
   static oop initialize_and_allocate(BasicType type, TRAPS);
  public:
@@ -665,7 +666,10 @@
   static bool is_instance(oop box)                 { return basic_type(box) != T_ILLEGAL; }
   static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; }
 
-  static int value_offset_in_bytes() { return value_offset; }
+  static int value_offset_in_bytes(BasicType type) {
+    return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset :
+                                                    value_offset;
+  }
 
   // Debugging
   friend class JavaClasses;
@@ -747,7 +751,7 @@
  public:
   enum {
    // The timestamp is a long field and may need to be adjusted for alignment.
-   hc_timestamp_offset    = align_object_offset_(hc_discovered_offset + 1)
+   hc_timestamp_offset  = hc_discovered_offset + 1
   };
   enum {
    hc_static_clock_offset = 0