compiler can't see 2 lines

while debugging, the compiler can't see 2 lines
, when I repeated them , It can see them but I want to know if this problem in debugger only or not, I mean do I have to repeat them or not?

  else if (CompState==0x05)
                {

                        P1 = 0x05;
                        P2 = 0xF8;
                        ACK_PC(0xFA);


                           P2 = 0xF4;  // this line can't be read in debugger
                        P1=CompDataRx[0]; // this line can't read in debugger

                        ACK_PC(0xF9);