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diff src/share/vm/oops/arrayOop.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 ba764ed4b6f2
children d1605aabd0a1
line wrap: on
line diff
--- a/src/share/vm/oops/arrayOop.hpp	Wed May 21 13:46:23 2008 -0700
+++ b/src/share/vm/oops/arrayOop.hpp	Wed May 21 16:31:35 2008 -0700
@@ -41,11 +41,10 @@
   // Header size computation.
   // The header is considered the oop part of this type plus the length.
   // Returns the aligned header_size_in_bytes.  This is not equivalent to
-  // sizeof(arrayOopDesc) which should not appear in the code, except here.
+  // sizeof(arrayOopDesc) which should not appear in the code.
   static int header_size_in_bytes() {
-    size_t hs = UseCompressedOops ?
-            sizeof(arrayOopDesc) :
-            align_size_up(sizeof(arrayOopDesc) + sizeof(int), HeapWordSize);
+    size_t hs = align_size_up(length_offset_in_bytes() + sizeof(int),
+                              HeapWordSize);
 #ifdef ASSERT
     // make sure it isn't called before UseCompressedOops is initialized.
     static size_t arrayoopdesc_hs = 0;