src/cpu/x86/vm/c1_CodeStubs_x86.cpp

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.
rev 8803 : Implementation improvements to pass JPRT

*** 516,525 ****
--- 516,552 ----
  #endif
  
    __ jmp(_continuation);
  }
  
+ void C1ThreadLocalSafepoint::emit_code(LIR_Assembler* ce) {
+ #ifdef _LP64
+   __ bind(_entry);
+   InternalAddress pc_addr(safepoint_pc());
+   __ lea(rscratch1, pc_addr);
+   __ movptr(Address(r15_thread, JavaThread::saved_exception_pc_offset()), rscratch1);
+ 
+   address stub;
+ 
+   if (is_return()) {
+     assert(SharedRuntime::polling_page_return_handler_blob() != NULL,
+            "polling page return stub not created yet");
+     stub = SharedRuntime::polling_page_return_handler_blob()->entry_point();
+   } else {
+     assert(SharedRuntime::polling_page_safepoint_handler_blob() != NULL,
+            "polling page safepoint stub not created yet");
+     stub = SharedRuntime::polling_page_safepoint_handler_blob()->entry_point();
+   }
+ 
+   RuntimeAddress callback_addr(stub);
+ 
+   __ jump(callback_addr);
+ #else
+   ShouldNotReachHere();
+ #endif /* _LP64 */
+ }
+ 
  /////////////////////////////////////////////////////////////////////////////
  #if INCLUDE_ALL_GCS
  
  void G1PreBarrierStub::emit_code(LIR_Assembler* ce) {
    // At this point we know that marking is in progress.