src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp

*** 723,732 ****
--- 723,762 ----
    default:                    ShouldNotReachHere();
    }
  
  }
  
+ void LIRGenerator::do_BitIntrinsic(Intrinsic* x) {
+   address routine = NULL;
+ 
+   if (x->id() == vmIntrinsics::_setBit)
+     routine = StubRoutines::setBit();
+   else if (x->id() == vmIntrinsics::_clrBit)
+     routine = StubRoutines::clrBit();
+ 
+   assert(routine != NULL, "bit intrinsic not available");
+ 
+   LIRItem bits(x->argument_at(0), this);
+   LIRItem index(x->argument_at(1), this);
+ 
+   bits.load_item();
+   LIR_Address* a = new LIR_Address(bits.result(), T_BYTE);
+ 
+   BasicTypeList signature(2);
+   signature.append(T_ADDRESS);
+   signature.append(T_INT);
+ 
+   CallingConvention* cc = frame_map()->c_calling_convention(&signature);
+ 
+   LIR_Opr addr = new_pointer_register();
+   __ leal(LIR_OprFact::address(a), addr);
+   __ move(addr, cc->at(0));
+ 
+   index.load_item_force(cc->at(1));
+ 
+   __ call_runtime_leaf(routine, getThreadTemp(), LIR_OprFact::illegalOpr, cc->args());
+ }
  
  void LIRGenerator::do_MathIntrinsic(Intrinsic* x) {
    assert(x->number_of_arguments() == 1 || (x->number_of_arguments() == 2 && x->id() == vmIntrinsics::_dpow), "wrong type");
  
    if (x->id() == vmIntrinsics::_dexp || x->id() == vmIntrinsics::_dlog ||