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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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12
hotspot/src/share/vm/utilities/copy.hpp
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@ -148,11 +148,19 @@ class Copy : AllStatic {
// oops, conjoint, atomic on each oop
static void conjoint_oops_atomic(oop* from, oop* to, size_t count) {
assert_params_ok(from, to, LogBytesPerOop);
assert_params_ok(from, to, LogBytesPerHeapOop);
assert_non_zero(count);
pd_conjoint_oops_atomic(from, to, count);
}
// overloaded for UseCompressedOops
static void conjoint_oops_atomic(narrowOop* from, narrowOop* to, size_t count) {
assert(sizeof(narrowOop) == sizeof(jint), "this cast is wrong");
assert_params_ok(from, to, LogBytesPerInt);
assert_non_zero(count);
pd_conjoint_jints_atomic((jint*)from, (jint*)to, count);
}
// Copy a span of memory. If the span is an integral number of aligned
// longs, words, or ints, copy those units atomically.
// The largest atomic transfer unit is 8 bytes, or the largest power
@ -188,7 +196,7 @@ class Copy : AllStatic {
// oops, conjoint array, atomic on each oop
static void arrayof_conjoint_oops(HeapWord* from, HeapWord* to, size_t count) {
assert_params_ok(from, to, LogBytesPerOop);
assert_params_ok(from, to, LogBytesPerHeapOop);
assert_non_zero(count);
pd_arrayof_conjoint_oops(from, to, count);
}