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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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10
hotspot/src/share/vm/runtime/atomic.hpp
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@ -55,7 +55,10 @@ class Atomic : AllStatic {
static void dec_ptr(volatile void* dest);
// Performs atomic exchange of *dest with exchange_value. Returns old prior value of *dest.
static jint xchg (jint exchange_value, volatile jint* dest);
static jint xchg(jint exchange_value, volatile jint* dest);
static unsigned int xchg(unsigned int exchange_value,
volatile unsigned int* dest);
static intptr_t xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest);
static void* xchg_ptr(void* exchange_value, volatile void* dest);
@ -65,6 +68,11 @@ class Atomic : AllStatic {
static jbyte cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value);
static jint cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value);
static jlong cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value);
static unsigned int cmpxchg(unsigned int exchange_value,
volatile unsigned int* dest,
unsigned int compare_value);
static intptr_t cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value);
static void* cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value);
};