Expanding a load instruction

[fearyourself <fearyourself@gmail.com>]

Dear all,

In the instruction set of my architecture, the offsets of a half-load
(HImode) have to be multiples of 2. However, if I set up a structure
in a certain way, the compiler will generate:

(mem/s/j:HI (plus:DI (reg:DI 134 [ ivtmp.23 ])
        (const_int 1 [0x1])) [0 <variable>.geno+0 S2 A16])

As the memory operand for the load.

Now, one solution I am going to try to fix this is to use
define_expand and add a move into another register before this load
and then load from that register (thus removing the offset of 1).

My question is: Is that how it should be done or is there another solution?

Thanks again for your help,
Jc