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6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC

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Decouple set_klass() with zeroing the gap when compressed.

Reviewed-by: kvn, ysr, jrose
This commit is contained in:
Coleen Phillimore 2008-05-28 21:06:24 -07:00
parent 1f9e095ee3
commit 646ceb4a45
12 changed files with 67 additions and 20 deletions
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5
hotspot/src/share/vm/oops/oop.hpp
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@ -77,10 +77,15 @@ class oopDesc {
void init_mark();
klassOop klass() const;
klassOop klass_or_null() const volatile;
oop* klass_addr();
narrowOop* compressed_klass_addr();
void set_klass(klassOop k);
// For klass field compression
int klass_gap() const;
void set_klass_gap(int z);
// For when the klass pointer is being used as a linked list "next" field.
void set_klass_to_list_ptr(oop k);