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6711316: Open source the Garbage-First garbage collector

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First mercurial integration of the code for the Garbage-First garbage collector.

Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
This commit is contained in:
Y. Srinivas Ramakrishna 2008-06-05 15:57:56 -07:00
parent 39463bb3fc
commit 18f3386a98
215 changed files with 36088 additions and 1249 deletions
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9
hotspot/src/cpu/x86/vm/c1_LIRGenerator_x86.cpp
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@ -294,6 +294,8 @@ void LIRGenerator::do_StoreIndexed(StoreIndexed* x) {
}
if (obj_store) {
// Needs GC write barriers.
pre_barrier(LIR_OprFact::address(array_addr), false, NULL);
__ move(value.result(), array_addr, null_check_info);
// Seems to be a precise
post_barrier(LIR_OprFact::address(array_addr), value.result());
@ -745,7 +747,10 @@ void LIRGenerator::do_CompareAndSwap(Intrinsic* x, ValueType* type) {
__ move(obj.result(), addr);
__ add(addr, offset.result(), addr);
if (type == objectType) { // Write-barrier needed for Object fields.
// Do the pre-write barrier, if any.
pre_barrier(addr, false, NULL);
}
LIR_Opr ill = LIR_OprFact::illegalOpr; // for convenience
if (type == objectType)
@ -1250,6 +1255,8 @@ void LIRGenerator::put_Object_unsafe(LIR_Opr src, LIR_Opr offset, LIR_Opr data,
LIR_Address* addr = new LIR_Address(src, offset, type);
bool is_obj = (type == T_ARRAY || type == T_OBJECT);
if (is_obj) {
// Do the pre-write barrier, if any.
pre_barrier(LIR_OprFact::address(addr), false, NULL);
__ move(data, addr);
assert(src->is_register(), "must be register");
// Seems to be a precise address