995 };

   995 };

   996 

   996 

   997 // "Acquire" - no following ref can move before (but earlier refs can

   997 // "Acquire" - no following ref can move before (but earlier refs can

   998 // follow, like an early Load stalled in cache).  Requires multi-cpu

   998 // follow, like an early Load stalled in cache).  Requires multi-cpu

   999 // visibility.  Inserted independ of any load, as required

   999 // visibility.  Inserted independ of any load, as required

  1001 class LoadFenceNode: public MemBarNode {

  1001 class LoadFenceNode: public MemBarNode {

  1002 public:

  1002 public:

  1003   LoadFenceNode(Compile* C, int alias_idx, Node* precedent)

  1003   LoadFenceNode(Compile* C, int alias_idx, Node* precedent)

  1004     : MemBarNode(C, alias_idx, precedent) {}

  1004     : MemBarNode(C, alias_idx, precedent) {}

  1005   virtual int Opcode() const;

  1005   virtual int Opcode() const;

  1016 };

  1016 };

  1017 

  1017 

  1018 // "Release" - no earlier ref can move after (but later refs can move

  1018 // "Release" - no earlier ref can move after (but later refs can move

  1019 // up, like a speculative pipelined cache-hitting Load).  Requires

  1019 // up, like a speculative pipelined cache-hitting Load).  Requires

  1020 // multi-cpu visibility.  Inserted independent of any store, as required

  1020 // multi-cpu visibility.  Inserted independent of any store, as required

  1022 class StoreFenceNode: public MemBarNode {

  1022 class StoreFenceNode: public MemBarNode {

  1023 public:

  1023 public:

  1024   StoreFenceNode(Compile* C, int alias_idx, Node* precedent)

  1024   StoreFenceNode(Compile* C, int alias_idx, Node* precedent)

  1025     : MemBarNode(C, alias_idx, precedent) {}

  1025     : MemBarNode(C, alias_idx, precedent) {}

  1026   virtual int Opcode() const;

  1026   virtual int Opcode() const;