Treat OP_monitor address as a memory reference in the IR?

Today DR's IR considers the address in eax/rax for OP_monitor to just be a register source and not a memory reference. Perhaps it should be considered a memref even if there would be no fault on a bad address (and thus all tools like Dr. Memory would be forced to special-case it just like prefetch instructions)? The memory size would be read from cpuid, though that just gives a min and max monitor-line size.