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6689060: Escape Analysis does not work with Compressed Oops

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64-bits VM crashes with -XX:+AggresiveOpts (Escape Analysis + Compressed Oops)

Reviewed-by: never, sgoldman
This commit is contained in:
Vladimir Kozlov 2008-04-23 11:20:36 -07:00
parent 8ece15fd05
commit 69155d87f9
13 changed files with 235 additions and 51 deletions
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13
hotspot/src/share/vm/opto/memnode.cpp
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@ -754,13 +754,12 @@ Node *LoadNode::make( PhaseGVN& gvn, Node *ctl, Node *mem, Node *adr, const Type
const TypeNarrowOop* narrowtype;
if (rt->isa_narrowoop()) {
narrowtype = rt->is_narrowoop();
rt = narrowtype->make_oopptr();
} else {
narrowtype = rt->is_oopptr()->make_narrowoop();
}
Node* load = gvn.transform(new (C, 3) LoadNNode(ctl, mem, adr, adr_type, narrowtype));
return new (C, 2) DecodeNNode(load, rt);
return DecodeNNode::decode(&gvn, load);
} else
#endif
{
@ -1841,15 +1840,7 @@ StoreNode* StoreNode::make( PhaseGVN& gvn, Node* ctl, Node* mem, Node* adr, cons
(UseCompressedOops && val->bottom_type()->isa_klassptr() &&
adr->bottom_type()->isa_rawptr())) {
const TypePtr* type = val->bottom_type()->is_ptr();
Node* cp;
if (type->isa_oopptr()) {
const TypeNarrowOop* etype = type->is_oopptr()->make_narrowoop();
cp = gvn.transform(new (C, 2) EncodePNode(val, etype));
} else if (type == TypePtr::NULL_PTR) {
cp = gvn.transform(new (C, 1) ConNNode(TypeNarrowOop::NULL_PTR));
} else {
ShouldNotReachHere();
}
Node* cp = EncodePNode::encode(&gvn, val);
return new (C, 4) StoreNNode(ctl, mem, adr, adr_type, cp);
} else
#endif