archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-27 06:45:07 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

6700789: G1: Enable use of compressed oops with G1 heaps

Browse source 
Modifications to G1 so as to allow the use of compressed oops.

Reviewed-by: apetrusenko, coleenp, jmasa, kvn, never, phh, tonyp
This commit is contained in:
Y. Srinivas Ramakrishna 2009-07-14 15:40:39 -07:00
parent 50d7db1805
commit 075c1335cb
58 changed files with 1233 additions and 1175 deletions
Download patch file Download diff file Expand all files Collapse all files

10
hotspot/src/share/vm/utilities/taskqueue.hpp
View file

@ -560,8 +560,14 @@ typedef GenericTaskQueueSet<Task> OopTaskQueueSet;
class StarTask {
void* _holder; // either union oop* or narrowOop*
public:
StarTask(narrowOop *p) { _holder = (void *)((uintptr_t)p | COMPRESSED_OOP_MASK); }
StarTask(oop *p) { _holder = (void*)p; }
StarTask(narrowOop* p) {
assert(((uintptr_t)p & COMPRESSED_OOP_MASK) == 0, "Information loss!");
_holder = (void *)((uintptr_t)p | COMPRESSED_OOP_MASK);
}
StarTask(oop* p) {
assert(((uintptr_t)p & COMPRESSED_OOP_MASK) == 0, "Information loss!");
_holder = (void*)p;
}
StarTask() { _holder = NULL; }
operator oop*() { return (oop*)_holder; }
operator narrowOop*() {