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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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39
hotspot/src/cpu/sparc/vm/stubGenerator_sparc.cpp
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@ -1110,30 +1110,31 @@ class StubGenerator: public StubCodeGenerator {
// The input registers are overwritten.
//
void gen_write_ref_array_pre_barrier(Register addr, Register count) {
#if 0 // G1 only
BarrierSet* bs = Universe::heap()->barrier_set();
if (bs->has_write_ref_pre_barrier()) {
assert(bs->has_write_ref_array_pre_opt(),
"Else unsupported barrier set.");
assert(addr->is_global() && count->is_global(),
"If not, then we have to fix this code to handle more "
"general cases.");
// Get some new fresh output registers.
__ save_frame(0);
// Save the necessary global regs... will be used after.
__ mov(addr, L0);
__ mov(count, L1);
__ mov(addr, O0);
if (addr->is_global()) {
__ mov(addr, L0);
}
if (count->is_global()) {
__ mov(count, L1);
}
__ mov(addr->after_save(), O0);
// Get the count into O1
__ call(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_pre));
__ delayed()->mov(count, O1);
__ mov(L0, addr);
__ mov(L1, count);
__ delayed()->mov(count->after_save(), O1);
if (addr->is_global()) {
__ mov(L0, addr);
}
if (count->is_global()) {
__ mov(L1, count);
}
__ restore();
}
#endif // 0
}
//
// Generate post-write barrier for array.
@ -1150,22 +1151,17 @@ class StubGenerator: public StubCodeGenerator {
BarrierSet* bs = Universe::heap()->barrier_set();
switch (bs->kind()) {
#if 0 // G1 - only
case BarrierSet::G1SATBCT:
case BarrierSet::G1SATBCTLogging:
{
assert(addr->is_global() && count->is_global(),
"If not, then we have to fix this code to handle more "
"general cases.");
// Get some new fresh output registers.
__ save_frame(0);
__ mov(addr, O0);
__ mov(addr->after_save(), O0);
__ call(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_post));
__ delayed()->mov(count, O1);
__ delayed()->mov(count->after_save(), O1);
__ restore();
}
break;
#endif // 0 G1 - only
case BarrierSet::CardTableModRef:
case BarrierSet::CardTableExtension:
{
@ -2412,8 +2408,7 @@ class StubGenerator: public StubCodeGenerator {
StubCodeMark mark(this, "StubRoutines", name);
address start = __ pc();
gen_write_ref_array_pre_barrier(G1, G5);
gen_write_ref_array_pre_barrier(O1, O2);
#ifdef ASSERT
// We sometimes save a frame (see partial_subtype_check below).