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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes

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Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv

Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
This commit is contained in:
Coleen Phillimore 2008-04-13 17:43:42 -04:00
parent 680ecf1611
commit 4a831d45f0
273 changed files with 6585 additions and 2993 deletions
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6
hotspot/src/share/vm/memory/cardTableModRefBS.hpp
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@ -273,7 +273,7 @@ public:
// *** Barrier set functions.
inline bool write_ref_needs_barrier(oop* field, oop new_val) {
inline bool write_ref_needs_barrier(void* field, oop new_val) {
// Note that this assumes the perm gen is the highest generation
// in the address space
return new_val != NULL && !new_val->is_perm();
@ -285,7 +285,7 @@ public:
// these functions here for performance.
protected:
void write_ref_field_work(oop obj, size_t offset, oop newVal);
void write_ref_field_work(oop* field, oop newVal);
void write_ref_field_work(void* field, oop newVal);
public:
bool has_write_ref_array_opt() { return true; }
@ -315,7 +315,7 @@ public:
// *** Card-table-barrier-specific things.
inline void inline_write_ref_field(oop* field, oop newVal) {
inline void inline_write_ref_field(void* field, oop newVal) {
jbyte* byte = byte_for(field);
*byte = dirty_card;
}