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diff src/share/vm/gc_implementation/parNew/parGCAllocBuffer.cpp @ 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/src/share/vm/gc_implementation/parNew/parGCAllocBuffer.cpp	Fri Apr 11 09:56:35 2008 -0400
+++ b/src/share/vm/gc_implementation/parNew/parGCAllocBuffer.cpp	Sun Apr 13 17:43:42 2008 -0400
@@ -32,18 +32,19 @@
   _allocated(0), _wasted(0)
 {
   assert (min_size() > AlignmentReserve, "Inconsistency!");
+  // arrayOopDesc::header_size depends on command line initialization.
+  FillerHeaderSize = align_object_size(arrayOopDesc::header_size(T_INT));
+  AlignmentReserve = oopDesc::header_size() > MinObjAlignment ? FillerHeaderSize : 0;
 }
 
-const size_t ParGCAllocBuffer::FillerHeaderSize =
-             align_object_size(arrayOopDesc::header_size(T_INT));
+size_t ParGCAllocBuffer::FillerHeaderSize;
 
 // If the minimum object size is greater than MinObjAlignment, we can
 // end up with a shard at the end of the buffer that's smaller than
 // the smallest object.  We can't allow that because the buffer must
 // look like it's full of objects when we retire it, so we make
 // sure we have enough space for a filler int array object.
-const size_t ParGCAllocBuffer::AlignmentReserve =
-             oopDesc::header_size() > MinObjAlignment ? FillerHeaderSize : 0;
+size_t ParGCAllocBuffer::AlignmentReserve;
 
 void ParGCAllocBuffer::retire(bool end_of_gc, bool retain) {
   assert(!retain || end_of_gc, "Can only retain at GC end.");