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6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode

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Remove DecodeNNode::decode() and EncodePNode::encode() methods.

Reviewed-by: rasbold, never
This commit is contained in:
Vladimir Kozlov 2008-06-24 10:43:29 -07:00
parent 2d64a7a369
commit a671e7c7b5
17 changed files with 103 additions and 143 deletions
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10
hotspot/src/share/vm/opto/macro.cpp
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@ -598,7 +598,7 @@ bool PhaseMacroExpand::scalar_replacement(AllocateNode *alloc, GrowableArray <Sa
field_type = TypeOopPtr::make_from_klass(elem_type->as_klass());
}
if (UseCompressedOops) {
field_type = field_type->is_oopptr()->make_narrowoop();
field_type = field_type->make_narrowoop();
basic_elem_type = T_NARROWOOP;
}
} else {
@ -666,9 +666,11 @@ bool PhaseMacroExpand::scalar_replacement(AllocateNode *alloc, GrowableArray <Sa
if (UseCompressedOops && field_type->isa_narrowoop()) {
// Enable "DecodeN(EncodeP(Allocate)) --> Allocate" transformation
// to be able scalar replace the allocation.
_igvn.set_delay_transform(false);
field_val = DecodeNNode::decode(&_igvn, field_val);
_igvn.set_delay_transform(true);
if (field_val->is_EncodeP()) {
field_val = field_val->in(1);
} else {
field_val = transform_later(new (C, 2) DecodeNNode(field_val, field_val->bottom_type()->make_ptr()));
}
}
sfpt->add_req(field_val);
}