src/share/vm/c1/c1_CodeStubs.hpp

rev 8802 : G1 performance improvements: card batching, joining, sorting, prefetching and write barrier fence elision and simplification based on a global syncrhonization using handshakes piggybacking on thread-local safepoints.

*** 533,542 ****
--- 533,565 ----
  #ifndef PRODUCT
    virtual void print_name(outputStream* out) const { out->print("ArrayCopyStub"); }
  #endif // PRODUCT
  };
  
+ class C1ThreadLocalSafepoint: public CodeStub {
+  private:
+   address _safepoint_pc;
+   bool _is_return;
+ 
+  public:
+   C1ThreadLocalSafepoint(bool is_return) : _is_return(is_return) { }
+ 
+   bool is_return() { return _is_return; }
+ 
+   address safepoint_pc() { return _safepoint_pc; }
+   void set_safepoint_pc(address pc) { _safepoint_pc = pc; }
+ 
+   virtual void emit_code(LIR_Assembler* e);
+   virtual void visit(LIR_OpVisitState* visitor) {
+     // don't pass in the code emit info since it's processed in the fast path
+     visitor->do_slow_case();
+   }
+ #ifndef PRODUCT
+   virtual void print_name(outputStream* out) const { out->print("C1ThreadLocalSafepoint"); }
+ #endif // PRODUCT
+ };
+ 
  //////////////////////////////////////////////////////////////////////////////////////////
  #if INCLUDE_ALL_GCS
  
  // Code stubs for Garbage-First barriers.
  class G1PreBarrierStub: public CodeStub {