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6964458: Reimplement class meta-data storage to use native memory

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Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
This commit is contained in:
Jon Masamitsu 2012-09-01 13:25:18 -04:00 • committed by Coleen Phillimore
parent 36eee7c8c8
commit 5c58d27aac
853 changed files with 26124 additions and 82956 deletions
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9
hotspot/src/share/vm/opto/connode.cpp
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@ -50,10 +50,11 @@ ConNode *ConNode::make( Compile* C, const Type *t ) {
case T_FLOAT: return new (C, 1) ConFNode( t->is_float_constant() );
case T_DOUBLE: return new (C, 1) ConDNode( t->is_double_constant() );
case T_VOID: return new (C, 1) ConNode ( Type::TOP );
case T_OBJECT: return new (C, 1) ConPNode( t->is_oopptr() );
case T_OBJECT: return new (C, 1) ConPNode( t->is_ptr() );
case T_ARRAY: return new (C, 1) ConPNode( t->is_aryptr() );
case T_ADDRESS: return new (C, 1) ConPNode( t->is_ptr() );
case T_NARROWOOP: return new (C, 1) ConNNode( t->is_narrowoop() );
case T_METADATA: return new (C, 1) ConPNode( t->is_ptr() );
// Expected cases: TypePtr::NULL_PTR, any is_rawptr()
// Also seen: AnyPtr(TopPTR *+top); from command line:
// r -XX:+PrintOpto -XX:CIStart=285 -XX:+CompileTheWorld -XX:CompileTheWorldStartAt=660
@ -526,8 +527,8 @@ const Type *CheckCastPPNode::Value( PhaseTransform *phase ) const {
// // If either input is an 'interface', return destination type
// assert (in_oop == NULL || in_oop->klass() != NULL, "");
// assert (my_oop == NULL || my_oop->klass() != NULL, "");
// if( (in_oop && in_oop->klass()->klass_part()->is_interface())
// ||(my_oop && my_oop->klass()->klass_part()->is_interface()) ) {
// if( (in_oop && in_oop->klass()->is_interface())
// ||(my_oop && my_oop->klass()->is_interface()) ) {
// TypePtr::PTR in_ptr = in->isa_ptr() ? in->is_ptr()->_ptr : TypePtr::BotPTR;
// // Preserve cast away nullness for interfaces
// if( in_ptr == TypePtr::NotNull && my_oop && my_oop->_ptr == TypePtr::BotPTR ) {
@ -604,7 +605,7 @@ const Type *EncodePNode::Value( PhaseTransform *phase ) const {
if (t == Type::TOP) return Type::TOP;
if (t == TypePtr::NULL_PTR) return TypeNarrowOop::NULL_PTR;
assert(t->isa_oopptr(), "only oopptr here");
assert(t->isa_oop_ptr() || UseCompressedKlassPointers && t->isa_klassptr(), "only oopptr here");
return t->make_narrowoop();
}