Mercurial > hg > truffle
diff src/share/vm/opto/locknode.hpp @ 66:6dbf1a175d6b
6672848: (Escape Analysis) improve lock elimination with EA
Summary: Remove lock/unlock MemBar nodes and specify locks in debug info for deoptimization.
Reviewed-by: never
| author | kvn |
|---|---|
| date | Fri, 14 Mar 2008 16:40:42 -0700 |
| parents | a61af66fc99e |
| children | d1605aabd0a1 |
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--- a/src/share/vm/opto/locknode.hpp Fri Mar 14 15:26:33 2008 -0700 +++ b/src/share/vm/opto/locknode.hpp Fri Mar 14 16:40:42 2008 -0700 @@ -27,6 +27,7 @@ public: const int _slot; RegMask _inmask; + bool _is_eliminated; // indicates this lock was safely eliminated BoxLockNode( int lock ); virtual int Opcode() const; @@ -42,6 +43,10 @@ static OptoReg::Name stack_slot(Node* box_node); + bool is_eliminated() { return _is_eliminated; } + // mark lock as eliminated. + void set_eliminated() { _is_eliminated = true; } + #ifndef PRODUCT virtual void format( PhaseRegAlloc *, outputStream *st ) const; virtual void dump_spec(outputStream *st) const { st->print(" Lock %d",_slot); }