PATCH: Add LP_SIZE, OP_LP, ASM_ADDR and RXX_LP to x86_64/sysdep.h

[Roland McGrath]

It's hard to evaluate the wisdom of particular macro choices without
seeing all the cases where they're used.

Instead of the several MOVE_LP et al, we could just have a single macro:

#define LP(insn)	insn##q

(could be a different name).  For parity, it seems appropriate to define
that for !__ASSEMBLER__ too, in case they are needed in asm().


Thanks,
Roland