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6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb

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Added new product ObjectAlignmentInBytes flag to control object alignment.

Reviewed-by: twisti, ysr, iveresov
This commit is contained in:
Vladimir Kozlov 2010-05-27 18:01:56 -07:00
parent 05b4f2e796
commit cc18a50e59
29 changed files with 222 additions and 136 deletions
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4
hotspot/src/share/vm/oops/oop.hpp
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@ -149,10 +149,6 @@ class oopDesc {
// Need this as public for garbage collection.
template <class T> T* obj_field_addr(int offset) const;
// Oop encoding heap max
static const uint64_t OopEncodingHeapMax =
(uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes;
static bool is_null(oop obj);
static bool is_null(narrowOop obj);