The JIT epilogue could be wrong and lead to segmentation fault

[mobsceneZ]

Hi Becavalier, I think the function epilogue in bfJITCompile miscalculates the jump offset and can lead to segmentation fault if the provided brainfuck input does not contain . opcode:

brainfuck-jit-interpreter/interpreter.cc

Lines 361 to 366 in 9b65632

	std::vector<uint8_t> byteCode {
	REX_CMPD_R11, 0x0,
	JE_SHORT, 0x8,
	CALLQ, /* mem slot */
	JMPQ_RSP,
	};

The je 8 is wrong since it jumps across the the jmpq *(%rsp) instruction. I think the correct instruction should be je 5.