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8069016: Add BarrierSet downcast support

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Add FakeRttiSupport utility and use to provide barrier_set_cast.

Reviewed-by: jmasa, sangheki
This commit is contained in:
Kim Barrett 2015-02-27 19:52:48 -05:00
parent 1426bc9dc1
commit 40d3986051
32 changed files with 289 additions and 131 deletions
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4
hotspot/src/share/vm/compiler/disassembler.cpp
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@ -340,8 +340,8 @@ void decode_env::print_address(address adr) {
}
BarrierSet* bs = Universe::heap()->barrier_set();
if (bs->kind() == BarrierSet::CardTableModRef &&
adr == (address)((CardTableModRefBS*)(bs))->byte_map_base) {
if (bs->is_a(BarrierSet::CardTableModRef) &&
adr == (address)(barrier_set_cast<CardTableModRefBS>(bs)->byte_map_base)) {
st->print("word_map_base");
if (WizardMode) st->print(" " INTPTR_FORMAT, (intptr_t)adr);
return;