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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes

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Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv

Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
This commit is contained in:
Coleen Phillimore 2008-04-13 17:43:42 -04:00
parent 680ecf1611
commit 4a831d45f0
273 changed files with 6585 additions and 2993 deletions
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6
hotspot/src/share/vm/opto/node.cpp
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@ -1169,6 +1169,12 @@ intptr_t Node::get_ptr() const {
return ((ConPNode*)this)->type()->is_ptr()->get_con();
}
// Get a narrow oop constant from a ConNNode.
intptr_t Node::get_narrowcon() const {
assert( Opcode() == Op_ConN, "" );
return ((ConNNode*)this)->type()->is_narrowoop()->get_con();
}
// Get a long constant from a ConNode.
// Return a default value if there is no apparent constant here.
const TypeLong* Node::find_long_type() const {