--- a/hotspot/src/share/vm/oops/oop.inline.hpp Wed Mar 18 11:37:48 2009 -0400
+++ b/hotspot/src/share/vm/oops/oop.inline.hpp Thu Mar 19 09:13:24 2009 -0700
@@ -148,10 +148,11 @@
inline narrowOop oopDesc::encode_heap_oop_not_null(oop v) {
assert(!is_null(v), "oop value can never be zero");
- address heap_base = Universe::heap_base();
- uint64_t pd = (uint64_t)(pointer_delta((void*)v, (void*)heap_base, 1));
+ address base = Universe::narrow_oop_base();
+ int shift = Universe::narrow_oop_shift();
+ uint64_t pd = (uint64_t)(pointer_delta((void*)v, (void*)base, 1));
assert(OopEncodingHeapMax > pd, "change encoding max if new encoding");
- uint64_t result = pd >> LogMinObjAlignmentInBytes;
+ uint64_t result = pd >> shift;
assert((result & CONST64(0xffffffff00000000)) == 0, "narrow oop overflow");
return (narrowOop)result;
}
@@ -162,8 +163,9 @@
inline oop oopDesc::decode_heap_oop_not_null(narrowOop v) {
assert(!is_null(v), "narrow oop value can never be zero");
- address heap_base = Universe::heap_base();
- return (oop)(void*)((uintptr_t)heap_base + ((uintptr_t)v << LogMinObjAlignmentInBytes));
+ address base = Universe::narrow_oop_base();
+ int shift = Universe::narrow_oop_shift();
+ return (oop)(void*)((uintptr_t)base + ((uintptr_t)v << shift));
}
inline oop oopDesc::decode_heap_oop(narrowOop v) {