Mercurial > hg > truffle
diff src/share/vm/runtime/vmStructs.cpp @ 642:660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
Summary: Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp
| author | kvn |
|---|---|
| date | Thu, 12 Mar 2009 10:37:46 -0700 |
| parents | 5f44674206d3 |
| children | f30ba3b36599 |
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--- a/src/share/vm/runtime/vmStructs.cpp Wed Mar 11 14:16:13 2009 -0700 +++ b/src/share/vm/runtime/vmStructs.cpp Thu Mar 12 10:37:46 2009 -0700 @@ -263,7 +263,9 @@ static_field(Universe, _bootstrapping, bool) \ static_field(Universe, _fully_initialized, bool) \ static_field(Universe, _verify_count, int) \ - static_field(Universe, _heap_base, address) \ + static_field(Universe, _narrow_oop._base, address) \ + static_field(Universe, _narrow_oop._shift, int) \ + static_field(Universe, _narrow_oop._use_implicit_null_checks, bool) \ \ /**********************************************************************************/ \ /* Generation and Space hierarchies */ \